Groups > linux.debian.kernel > #62367 > unrolled thread

Bug#911023: memory leak in the backlight control of the dell-laptop module

Started by	Marco d'Itri <md@linux.it>
First post	2018-10-14 22:30 +0200
Last post	2019-01-28 20:00 +0100
Articles	5 — 4 participants

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  Bug#911023: memory leak in the backlight control of the dell-laptop module Marco d'Itri <md@linux.it> - 2018-10-14 22:30 +0200
    Bug#911023: memory leak in the backlight control of the dell-laptop module Pali Rohár <pali.rohar@gmail.com> - 2018-10-14 22:40 +0200
    Bug#911023: memory leak in the backlight control of the dell-laptop module Gabriele Mazzotta <gabriele.mzt@gmail.com> - 2018-10-16 22:30 +0200
      Bug#911023: memory leak in the backlight control of the dell-laptop module Marco d'Itri <md@linux.it> - 2019-01-28 20:00 +0100
    Processed: Re: Bug#911023: memory leak in the backlight control  of the dell-laptop module "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-01-28 20:00 +0100

#62367 — Bug#911023: memory leak in the backlight control of the dell-laptop module

From	Marco d'Itri <md@linux.it>
Date	2018-10-14 22:30 +0200
Subject	Bug#911023: memory leak in the backlight control of the dell-laptop module
Message-ID	<wIVbr-6LG-1@gated-at.bofh.it>

[Multipart message — attachments visible in raw view] — view raw

Package: src:linux
Version: 4.18.10-2
Severity: normal
Tags: upstream

(I am Cc'in the maintainers of the dell-laptop module, accordingly to 
modinfo.)

After running this for about 1H:

while true; do
 echo 1 > /sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/brightness
 sleep 0.25
 echo 0 > /sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/brightness
 sleep 0.25
done

most of the memory on my system is used and I get a flood of errors 
like these.

This is a regression, I have noticed this behaviour for at least the 
past 4 months.

Oct 14 16:01:37 bongo kernel: [534600.964709] kworker/1:3: page allocation failure: order:4, mode:0x6040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null)
Oct 14 16:01:37 bongo kernel: [534600.964715] kworker/1:3 cpuset=/ mems_allowed=0
Oct 14 16:01:37 bongo kernel: [534600.964725] CPU: 1 PID: 32257 Comm: kworker/1:3 Tainted: G        W  O      4.18.0-2-amd64 #1 Debian 4.18.10-1
Oct 14 16:01:37 bongo kernel: [534600.964728] Hardware name: Dell Inc. Latitude 7480/0R0YRF, BIOS 1.10.1 05/28/2018
Oct 14 16:01:37 bongo kernel: [534600.964736] Workqueue: events set_brightness_delayed
Oct 14 16:01:37 bongo kernel: [534600.964739] Call Trace:
Oct 14 16:01:37 bongo kernel: [534600.964749]  dump_stack+0x5c/0x7b
Oct 14 16:01:37 bongo kernel: [534600.964756]  warn_alloc+0xfc/0x180
Oct 14 16:01:37 bongo kernel: [534600.964763]  ? _cond_resched+0x15/0x40
Oct 14 16:01:37 bongo kernel: [534600.964769]  __alloc_pages_slowpath+0xcfe/0xd40
Oct 14 16:01:37 bongo kernel: [534600.964775]  __alloc_pages_nodemask+0x236/0x250
Oct 14 16:01:37 bongo kernel: [534600.964782]  kmalloc_order+0x14/0x40
Oct 14 16:01:37 bongo kernel: [534600.964787]  kmalloc_order_trace+0x1d/0xa0
Oct 14 16:01:37 bongo kernel: [534600.964793]  acpi_ut_initialize_buffer+0x35/0x6b
Oct 14 16:01:37 bongo kernel: [534600.964799]  acpi_evaluate_object+0x1d6/0x240
Oct 14 16:01:37 bongo kernel: [534600.964810]  wmidev_evaluate_method+0x107/0x150 [wmi]
Oct 14 16:01:37 bongo kernel: [534600.964819]  run_smbios_call+0x6d/0x1a0 [dell_smbios]
Oct 14 16:01:37 bongo kernel: [534600.964825]  dell_smbios_wmi_call+0x82/0xd0 [dell_smbios]
Oct 14 16:01:37 bongo kernel: [534600.964830]  dell_smbios_call+0x6f/0xc0 [dell_smbios]
Oct 14 16:01:37 bongo kernel: [534600.964836]  kbd_get_state+0x42/0xf0 [dell_laptop]
Oct 14 16:01:37 bongo kernel: [534600.964843]  kbd_led_level_set+0x3c/0x1a0 [dell_laptop]
Oct 14 16:01:37 bongo kernel: [534600.964848]  set_brightness_delayed+0x5b/0xa0
Oct 14 16:01:37 bongo kernel: [534600.964854]  process_one_work+0x195/0x370
Oct 14 16:01:37 bongo kernel: [534600.964859]  worker_thread+0x30/0x390
Oct 14 16:01:37 bongo kernel: [534600.964864]  ? process_one_work+0x370/0x370
Oct 14 16:01:37 bongo kernel: [534600.964868]  kthread+0x113/0x130
Oct 14 16:01:37 bongo kernel: [534600.964872]  ? kthread_create_worker_on_cpu+0x70/0x70
Oct 14 16:01:37 bongo kernel: [534600.964876]  ret_from_fork+0x35/0x40
Oct 14 16:01:37 bongo kernel: [534600.964881] warn_alloc_show_mem: 2 callbacks suppressed
Oct 14 16:01:37 bongo kernel: [534600.964881] Mem-Info:
Oct 14 16:01:37 bongo kernel: [534600.964891] active_anon:472110 inactive_anon:155641 isolated_anon:0
Oct 14 16:01:37 bongo kernel: [534600.964891]  active_file:302512 inactive_file:103400 isolated_file:0
Oct 14 16:01:37 bongo kernel: [534600.964891]  unevictable:52 dirty:2 writeback:0 unstable:0
Oct 14 16:01:37 bongo kernel: [534600.964891]  slab_reclaimable:34039 slab_unreclaimable:27446
Oct 14 16:01:37 bongo kernel: [534600.964891]  mapped:104119 shmem:28056 pagetables:8196 bounce:0
Oct 14 16:01:37 bongo kernel: [534600.964891]  free:108743 free_pcp:1 free_cma:0
Oct 14 16:01:37 bongo kernel: [534600.964903] Node 0 active_anon:1888440kB inactive_anon:622564kB active_file:1210048kB inactive_file:413600kB unevictable:208kB isolated(anon):0kB isolated(file):0kB mapped:416476kB dirty:8kB writeback:0kB shmem:112224kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 817152kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
Oct 14 16:01:37 bongo kernel: [534600.964906] Node 0 DMA free:15888kB min:132kB low:164kB high:196kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15988kB managed:15888kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Oct 14 16:01:37 bongo kernel: [534600.964915] lowmem_reserve[]: 0 3123 7812 7812 7812
Oct 14 16:01:37 bongo kernel: [534600.964922] Node 0 DMA32 free:302908kB min:26968kB low:33708kB high:40448kB active_anon:474228kB inactive_anon:109220kB active_file:145492kB inactive_file:75160kB unevictable:0kB writepending:0kB present:3298264kB managed:3232156kB mlocked:0kB kernel_stack:64kB pagetables:748kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Oct 14 16:01:37 bongo kernel: [534600.964930] lowmem_reserve[]: 0 0 4688 4688 4688
Oct 14 16:01:37 bongo kernel: [534600.964936] Node 0 Normal free:116176kB min:40480kB low:50600kB high:60720kB active_anon:1414212kB inactive_anon:513344kB active_file:1064556kB inactive_file:338440kB unevictable:208kB writepending:8kB present:4956160kB managed:4805464kB mlocked:208kB kernel_stack:10992kB pagetables:32036kB bounce:0kB free_pcp:4kB local_pcp:4kB free_cma:0kB
Oct 14 16:01:37 bongo kernel: [534600.964970] lowmem_reserve[]: 0 0 0 0 0
Oct 14 16:01:37 bongo kernel: [534600.965003] Node 0 DMA: 2*4kB (U) 3*8kB (U) 3*16kB (U) 0*32kB 3*64kB (U) 2*128kB (U) 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15888kB
Oct 14 16:01:37 bongo kernel: [534600.965086] Node 0 DMA32: 11164*4kB (UME) 8284*8kB (UME) 5590*16kB (UME) 3144*32kB (UE) 1*64kB (H) 1*128kB (H) 1*256kB (H) 1*512kB (H) 1*1024kB (H) 0*2048kB 0*4096kB = 302960kB
Oct 14 16:01:37 bongo kernel: [534600.965114] Node 0 Normal: 3062*4kB (UMEH) 3479*8kB (UMEH) 2294*16kB (UMEH) 1225*32kB (UEH) 8*64kB (H) 3*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 116880kB
Oct 14 16:01:37 bongo kernel: [534600.965141] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Oct 14 16:01:37 bongo kernel: [534600.965145] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Oct 14 16:01:37 bongo kernel: [534600.965148] 468671 total pagecache pages
Oct 14 16:01:37 bongo kernel: [534600.965154] 34702 pages in swap cache
Oct 14 16:01:37 bongo kernel: [534600.965158] Swap cache stats: add 1264190, delete 1229501, find 912771/1090742
Oct 14 16:01:37 bongo kernel: [534600.965161] Free swap  = 7857048kB
Oct 14 16:01:37 bongo kernel: [534600.965164] Total swap = 8807744kB
Oct 14 16:01:37 bongo kernel: [534600.965168] 2067603 pages RAM
Oct 14 16:01:37 bongo kernel: [534600.965170] 0 pages HighMem/MovableOnly
Oct 14 16:01:37 bongo kernel: [534600.965173] 54226 pages reserved
Oct 14 16:01:37 bongo kernel: [534600.965176] 0 pages hwpoisoned
Oct 14 16:01:37 bongo kernel: [534600.965192] leds dell::kbd_backlight: Setting an LED's brightness failed (-5)


-- Package-specific info:
** Version:
Linux version 4.18.0-2-amd64 (debian-kernel@lists.debian.org) (gcc version 7.3.0 (Debian 7.3.0-29)) #1 SMP Debian 4.18.10-1 (2018-09-30)

** Command line:
BOOT_IMAGE=/vmlinuz-4.18.0-2-amd64 root=UUID=bee56789-3e00-4f0c-8ca0-7d40d3902766 ro iomem=relaxed vsyscall=emulate iomem=relaxed vsyscall=emulate splash

** Tainted: WO (4608)
 * Taint on warning.
 * Out-of-tree module has been loaded.

** Kernel log:
Unable to read kernel log; any relevant messages should be attached

** Model information
sys_vendor: Dell Inc.
product_name: Latitude 7480
product_version: 
chassis_vendor: Dell Inc.
chassis_version: 
bios_vendor: Dell Inc.
bios_version: 1.10.1
board_vendor: Dell Inc.
board_name: 0R0YRF
board_version: A01

** Loaded modules:
nfnetlink_queue
nfnetlink_log
nfnetlink
wireguard(O)
ip6_udp_tunnel
udp_tunnel
cpuid
tcp_diag
inet_diag
pci_stub
tun
nls_utf8
isofs
uas
usb_storage
sctp
cbc
cts
rpcsec_gss_krb5
nfsv4
dns_resolver
nfs
lockd
grace
fscache
fuse
ctr
ccm
ip6table_mangle
ip6t_MASQUERADE
ip6table_nat
nf_conntrack_ipv6
nf_defrag_ipv6
nf_nat_ipv6
ip6t_REJECT
nf_reject_ipv6
ip6table_filter
ip6_tables
nf_conntrack_tftp
xt_CT
cpufreq_conservative
cpufreq_powersave
cpufreq_userspace
iptable_raw
iptable_mangle
ipt_MASQUERADE
xt_REDIRECT
xt_mark
xt_cgroup
iptable_nat
nf_nat_ipv4
nf_nat
nf_log_ipv4
nf_log_common
xt_LOG
ipt_REJECT
nf_reject_ipv4
nf_conntrack_ipv4
nf_defrag_ipv4
xt_tcpudp
xt_recent
xt_conntrack
nf_conntrack
libcrc32c
crc32c_generic
iptable_filter
intel_rapl
x86_pkg_temp_thermal
intel_powerclamp
kvm_intel
kvm
irqbypass
nls_ascii
intel_cstate
nls_cp437
intel_uncore
serio_raw
dell_wmi
intel_rapl_perf
vfat
dell_smm_hwmon
arc4
wmi_bmof
fat
snd_hda_codec_hdmi
efi_pstore
efivars
dell_rbtn
dell_laptop
dell_smbios
iwlmvm
dell_wmi_descriptor
iTCO_wdt
mac80211
iTCO_vendor_support
snd_soc_skl
iwlwifi
btusb
snd_soc_skl_ipc
btrtl
btbcm
snd_soc_sst_ipc
snd_hda_codec_realtek
btintel
snd_soc_sst_dsp
snd_hda_codec_generic
snd_hda_ext_core
uvcvideo
bluetooth
snd_soc_acpi
cfg80211
videobuf2_vmalloc
snd_soc_core
videobuf2_memops
videobuf2_v4l2
snd_compress
rtsx_pci_ms
drbg
videobuf2_common
ansi_cprng
memstick
snd_hda_intel
sg
videodev
ecdh_generic
snd_hda_codec
rfkill
media
snd_hda_core
joydev
snd_hwdep
snd_pcm_oss
snd_mixer_oss
snd_pcm
snd_timer
snd
soundcore
idma64
tpm_crb
int3403_thermal
tpm_tis
intel_hid
tpm_tis_core
tpm
int3400_thermal
battery
evdev
rng_core
acpi_thermal_rel
sparse_keymap
acpi_pad
ac
pcc_cpufreq
mei_me
mei
processor_thermal_device
int340x_thermal_zone
intel_pch_thermal
intel_soc_dts_iosf
dcdbas
i2c_dev
auth_rpcgss
coretemp
sunrpc
efivarfs
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
fscrypto
algif_skcipher
af_alg
dm_crypt
dm_mod
sd_mod
hid_alps
hid_generic
rtsx_pci_sdmmc
mmc_core
crct10dif_pclmul
crc32_pclmul
crc32c_intel
ghash_clmulni_intel
pcbc
aesni_intel
aes_x86_64
crypto_simd
cryptd
glue_helper
rtsx_pci
ahci
libahci
xhci_pci
i915
libata
xhci_hcd
i2c_algo_bit
drm_kms_helper
scsi_mod
e1000e
usbcore
i2c_i801
usb_common
intel_lpss_pci
drm
thermal
wmi
i2c_hid
hid
video
intel_lpss_acpi
intel_lpss
button

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers [8086:5904] (rev 02)
	Subsystem: Dell Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Capabilities: <access denied>

00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA controller])
	Subsystem: Dell HD Graphics 620 [1028:07a0]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 128
	Region 0: Memory at ee000000 (64-bit, non-prefetchable) [size=16M]
	Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at f000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: i915
	Kernel modules: i915

00:04.0 Signal processing controller [1180]: Intel Corporation Skylake Processor Thermal Subsystem [8086:1903] (rev 02)
	Subsystem: Dell Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [1028:07a0]
	Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at ef240000 (64-bit, non-prefetchable) [size=32K]
	Capabilities: <access denied>
	Kernel driver in use: proc_thermal
	Kernel modules: processor_thermal_device

00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller [8086:9d2f] (rev 21) (prog-if 30 [XHCI])
	Subsystem: Dell Sunrise Point-LP USB 3.0 xHCI Controller [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 125
	Region 0: Memory at ef230000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

00:14.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Thermal subsystem [8086:9d31] (rev 21)
	Subsystem: Dell Sunrise Point-LP Thermal subsystem [1028:07a0]
	Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at ef25a000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: intel_pch_thermal
	Kernel modules: intel_pch_thermal

00:15.0 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 [8086:9d60] (rev 21)
	Subsystem: Dell Sunrise Point-LP Serial IO I2C Controller [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at ef259000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci

00:15.1 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 [8086:9d61] (rev 21)
	Subsystem: Dell Sunrise Point-LP Serial IO I2C Controller [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at ef258000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci

00:15.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #2 [8086:9d62] (rev 21)
	Subsystem: Dell Sunrise Point-LP Serial IO I2C Controller [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at ef257000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci

00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-LP CSME HECI #1 [8086:9d3a] (rev 21)
	Subsystem: Dell Sunrise Point-LP CSME HECI [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 124
	Region 0: Memory at ef256000 (64-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:16.3 Serial controller [0700]: Intel Corporation Device [8086:9d3d] (rev 21) (prog-if 02 [16550])
	Subsystem: Dell Device [1028:07a0]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin D routed to IRQ 19
	Region 0: I/O ports at f0a0 [size=8]
	Region 1: Memory at ef255000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: serial

00:17.0 SATA controller [0106]: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] [8086:9d03] (rev 21) (prog-if 01 [AHCI 1.0])
	Subsystem: Dell Sunrise Point-LP SATA Controller [AHCI mode] [1028:07a0]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 126
	Region 0: Memory at ef250000 (32-bit, non-prefetchable) [size=8K]
	Region 1: Memory at ef254000 (32-bit, non-prefetchable) [size=256]
	Region 2: I/O ports at f090 [size=8]
	Region 3: I/O ports at f080 [size=4]
	Region 4: I/O ports at f060 [size=32]
	Region 5: Memory at ef253000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port [8086:9d10] (rev f1) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 122
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	Memory behind bridge: ef100000-ef1fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1c.2 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port [8086:9d12] (rev f1) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin C routed to IRQ 123
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	Memory behind bridge: ef000000-ef0fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: <access denied>
	Kernel driver in use: pcieport

00:1f.0 ISA bridge [0601]: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E [8086:9d4e] (rev 21)
	Subsystem: Dell Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E [1028:07a0]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-LP PMC [8086:9d21] (rev 21)
	Subsystem: Dell Sunrise Point-LP PMC [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Region 0: Memory at ef24c000 (32-bit, non-prefetchable) [size=16K]

00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d71] (rev 21)
	Subsystem: Dell Sunrise Point-LP HD Audio [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32
	Interrupt: pin B routed to IRQ 129
	Region 0: Memory at ef248000 (64-bit, non-prefetchable) [size=16K]
	Region 4: Memory at ef220000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel, snd_soc_skl

00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus [8086:9d23] (rev 21)
	Subsystem: Dell Sunrise Point-LP SMBus [1028:07a0]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at ef252000 (64-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at f040 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801

00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (4) I219-LM [8086:15d7] (rev 21)
	Subsystem: Dell Ethernet Connection (4) I219-LM [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 130
	Region 0: Memory at ef200000 (32-bit, non-prefetchable) [size=128K]
	Capabilities: <access denied>
	Kernel driver in use: e1000e
	Kernel modules: e1000e

01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01)
	Subsystem: Dell RTS525A PCI Express Card Reader [1028:07a0]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 127
	Region 1: Memory at ef100000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci

02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
	Subsystem: Intel Corporation Wireless 8265 / 8275 [8086:0050]
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 131
	Region 0: Memory at ef000000 (64-bit, non-prefetchable) [size=8K]
	Capabilities: <access denied>
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi


** USB devices:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0bda:568c Realtek Semiconductor Corp. 
Bus 001 Device 004: ID 0a5c:5832 Broadcom Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.18.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8), LANGUAGE=it_IT.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-4.18.0-2-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.132
ii  kmod                                    25-1
ii  linux-base                              4.5

Versions of packages linux-image-4.18.0-2-amd64 recommends:
ii  apparmor             2.13-8
ii  firmware-linux-free  3.4
pn  irqbalance           <none>

Versions of packages linux-image-4.18.0-2-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-efi-amd64          2.02+dfsg1-6
pn  linux-doc-4.18          <none>

Versions of packages linux-image-4.18.0-2-amd64 is related to:
pn  firmware-amd-graphics     <none>
pn  firmware-atheros          <none>
pn  firmware-bnx2             <none>
pn  firmware-bnx2x            <none>
pn  firmware-brcm80211        <none>
pn  firmware-cavium           <none>
pn  firmware-intel-sound      <none>
pn  firmware-intelwimax       <none>
pn  firmware-ipw2x00          <none>
pn  firmware-ivtv             <none>
ii  firmware-iwlwifi          20180825+dfsg-1
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
ii  firmware-misc-nonfree     20180825+dfsg-1
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
pn  firmware-realtek          <none>
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information

-- 
ciao,
Marco

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#62368

From	Pali Rohár <pali.rohar@gmail.com>
Date	2018-10-14 22:40 +0200
Message-ID	<wIVl7-6OV-1@gated-at.bofh.it>
In reply to	#62367

[Multipart message — attachments visible in raw view] — view raw

Adding Mario to loop.

Memory leak can be also in ACPI/WMI or in the new dell-smbios.ko module.

On Sunday 14 October 2018 22:18:21 Marco d'Itri wrote:
> Package: src:linux
> Version: 4.18.10-2
> Severity: normal
> Tags: upstream
> 
> (I am Cc'in the maintainers of the dell-laptop module, accordingly to 
> modinfo.)
> 
> After running this for about 1H:
> 
> while true; do
>  echo 1 > /sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/brightness
>  sleep 0.25
>  echo 0 > /sys/devices/platform/dell-laptop/leds/dell::kbd_backlight/brightness
>  sleep 0.25
> done
> 
> most of the memory on my system is used and I get a flood of errors 
> like these.
> 
> This is a regression, I have noticed this behaviour for at least the 
> past 4 months.
> 
> Oct 14 16:01:37 bongo kernel: [534600.964709] kworker/1:3: page allocation failure: order:4, mode:0x6040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null)
> Oct 14 16:01:37 bongo kernel: [534600.964715] kworker/1:3 cpuset=/ mems_allowed=0
> Oct 14 16:01:37 bongo kernel: [534600.964725] CPU: 1 PID: 32257 Comm: kworker/1:3 Tainted: G        W  O      4.18.0-2-amd64 #1 Debian 4.18.10-1
> Oct 14 16:01:37 bongo kernel: [534600.964728] Hardware name: Dell Inc. Latitude 7480/0R0YRF, BIOS 1.10.1 05/28/2018
> Oct 14 16:01:37 bongo kernel: [534600.964736] Workqueue: events set_brightness_delayed
> Oct 14 16:01:37 bongo kernel: [534600.964739] Call Trace:
> Oct 14 16:01:37 bongo kernel: [534600.964749]  dump_stack+0x5c/0x7b
> Oct 14 16:01:37 bongo kernel: [534600.964756]  warn_alloc+0xfc/0x180
> Oct 14 16:01:37 bongo kernel: [534600.964763]  ? _cond_resched+0x15/0x40
> Oct 14 16:01:37 bongo kernel: [534600.964769]  __alloc_pages_slowpath+0xcfe/0xd40
> Oct 14 16:01:37 bongo kernel: [534600.964775]  __alloc_pages_nodemask+0x236/0x250
> Oct 14 16:01:37 bongo kernel: [534600.964782]  kmalloc_order+0x14/0x40
> Oct 14 16:01:37 bongo kernel: [534600.964787]  kmalloc_order_trace+0x1d/0xa0
> Oct 14 16:01:37 bongo kernel: [534600.964793]  acpi_ut_initialize_buffer+0x35/0x6b
> Oct 14 16:01:37 bongo kernel: [534600.964799]  acpi_evaluate_object+0x1d6/0x240
> Oct 14 16:01:37 bongo kernel: [534600.964810]  wmidev_evaluate_method+0x107/0x150 [wmi]
> Oct 14 16:01:37 bongo kernel: [534600.964819]  run_smbios_call+0x6d/0x1a0 [dell_smbios]
> Oct 14 16:01:37 bongo kernel: [534600.964825]  dell_smbios_wmi_call+0x82/0xd0 [dell_smbios]
> Oct 14 16:01:37 bongo kernel: [534600.964830]  dell_smbios_call+0x6f/0xc0 [dell_smbios]
> Oct 14 16:01:37 bongo kernel: [534600.964836]  kbd_get_state+0x42/0xf0 [dell_laptop]
> Oct 14 16:01:37 bongo kernel: [534600.964843]  kbd_led_level_set+0x3c/0x1a0 [dell_laptop]
> Oct 14 16:01:37 bongo kernel: [534600.964848]  set_brightness_delayed+0x5b/0xa0
> Oct 14 16:01:37 bongo kernel: [534600.964854]  process_one_work+0x195/0x370
> Oct 14 16:01:37 bongo kernel: [534600.964859]  worker_thread+0x30/0x390
> Oct 14 16:01:37 bongo kernel: [534600.964864]  ? process_one_work+0x370/0x370
> Oct 14 16:01:37 bongo kernel: [534600.964868]  kthread+0x113/0x130
> Oct 14 16:01:37 bongo kernel: [534600.964872]  ? kthread_create_worker_on_cpu+0x70/0x70
> Oct 14 16:01:37 bongo kernel: [534600.964876]  ret_from_fork+0x35/0x40
> Oct 14 16:01:37 bongo kernel: [534600.964881] warn_alloc_show_mem: 2 callbacks suppressed
> Oct 14 16:01:37 bongo kernel: [534600.964881] Mem-Info:
> Oct 14 16:01:37 bongo kernel: [534600.964891] active_anon:472110 inactive_anon:155641 isolated_anon:0
> Oct 14 16:01:37 bongo kernel: [534600.964891]  active_file:302512 inactive_file:103400 isolated_file:0
> Oct 14 16:01:37 bongo kernel: [534600.964891]  unevictable:52 dirty:2 writeback:0 unstable:0
> Oct 14 16:01:37 bongo kernel: [534600.964891]  slab_reclaimable:34039 slab_unreclaimable:27446
> Oct 14 16:01:37 bongo kernel: [534600.964891]  mapped:104119 shmem:28056 pagetables:8196 bounce:0
> Oct 14 16:01:37 bongo kernel: [534600.964891]  free:108743 free_pcp:1 free_cma:0
> Oct 14 16:01:37 bongo kernel: [534600.964903] Node 0 active_anon:1888440kB inactive_anon:622564kB active_file:1210048kB inactive_file:413600kB unevictable:208kB isolated(anon):0kB isolated(file):0kB mapped:416476kB dirty:8kB writeback:0kB shmem:112224kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 817152kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
> Oct 14 16:01:37 bongo kernel: [534600.964906] Node 0 DMA free:15888kB min:132kB low:164kB high:196kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15988kB managed:15888kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
> Oct 14 16:01:37 bongo kernel: [534600.964915] lowmem_reserve[]: 0 3123 7812 7812 7812
> Oct 14 16:01:37 bongo kernel: [534600.964922] Node 0 DMA32 free:302908kB min:26968kB low:33708kB high:40448kB active_anon:474228kB inactive_anon:109220kB active_file:145492kB inactive_file:75160kB unevictable:0kB writepending:0kB present:3298264kB managed:3232156kB mlocked:0kB kernel_stack:64kB pagetables:748kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
> Oct 14 16:01:37 bongo kernel: [534600.964930] lowmem_reserve[]: 0 0 4688 4688 4688
> Oct 14 16:01:37 bongo kernel: [534600.964936] Node 0 Normal free:116176kB min:40480kB low:50600kB high:60720kB active_anon:1414212kB inactive_anon:513344kB active_file:1064556kB inactive_file:338440kB unevictable:208kB writepending:8kB present:4956160kB managed:4805464kB mlocked:208kB kernel_stack:10992kB pagetables:32036kB bounce:0kB free_pcp:4kB local_pcp:4kB free_cma:0kB
> Oct 14 16:01:37 bongo kernel: [534600.964970] lowmem_reserve[]: 0 0 0 0 0
> Oct 14 16:01:37 bongo kernel: [534600.965003] Node 0 DMA: 2*4kB (U) 3*8kB (U) 3*16kB (U) 0*32kB 3*64kB (U) 2*128kB (U) 0*256kB 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15888kB
> Oct 14 16:01:37 bongo kernel: [534600.965086] Node 0 DMA32: 11164*4kB (UME) 8284*8kB (UME) 5590*16kB (UME) 3144*32kB (UE) 1*64kB (H) 1*128kB (H) 1*256kB (H) 1*512kB (H) 1*1024kB (H) 0*2048kB 0*4096kB = 302960kB
> Oct 14 16:01:37 bongo kernel: [534600.965114] Node 0 Normal: 3062*4kB (UMEH) 3479*8kB (UMEH) 2294*16kB (UMEH) 1225*32kB (UEH) 8*64kB (H) 3*128kB (H) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 116880kB
> Oct 14 16:01:37 bongo kernel: [534600.965141] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
> Oct 14 16:01:37 bongo kernel: [534600.965145] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
> Oct 14 16:01:37 bongo kernel: [534600.965148] 468671 total pagecache pages
> Oct 14 16:01:37 bongo kernel: [534600.965154] 34702 pages in swap cache
> Oct 14 16:01:37 bongo kernel: [534600.965158] Swap cache stats: add 1264190, delete 1229501, find 912771/1090742
> Oct 14 16:01:37 bongo kernel: [534600.965161] Free swap  = 7857048kB
> Oct 14 16:01:37 bongo kernel: [534600.965164] Total swap = 8807744kB
> Oct 14 16:01:37 bongo kernel: [534600.965168] 2067603 pages RAM
> Oct 14 16:01:37 bongo kernel: [534600.965170] 0 pages HighMem/MovableOnly
> Oct 14 16:01:37 bongo kernel: [534600.965173] 54226 pages reserved
> Oct 14 16:01:37 bongo kernel: [534600.965176] 0 pages hwpoisoned
> Oct 14 16:01:37 bongo kernel: [534600.965192] leds dell::kbd_backlight: Setting an LED's brightness failed (-5)
> 
> 
> -- Package-specific info:
> ** Version:
> Linux version 4.18.0-2-amd64 (debian-kernel@lists.debian.org) (gcc version 7.3.0 (Debian 7.3.0-29)) #1 SMP Debian 4.18.10-1 (2018-09-30)
> 
> ** Command line:
> BOOT_IMAGE=/vmlinuz-4.18.0-2-amd64 root=UUID=bee56789-3e00-4f0c-8ca0-7d40d3902766 ro iomem=relaxed vsyscall=emulate iomem=relaxed vsyscall=emulate splash
> 
> ** Tainted: WO (4608)
>  * Taint on warning.
>  * Out-of-tree module has been loaded.
> 
> ** Kernel log:
> Unable to read kernel log; any relevant messages should be attached
> 
> ** Model information
> sys_vendor: Dell Inc.
> product_name: Latitude 7480
> product_version: 
> chassis_vendor: Dell Inc.
> chassis_version: 
> bios_vendor: Dell Inc.
> bios_version: 1.10.1
> board_vendor: Dell Inc.
> board_name: 0R0YRF
> board_version: A01
> 
> ** Loaded modules:
> nfnetlink_queue
> nfnetlink_log
> nfnetlink
> wireguard(O)
> ip6_udp_tunnel
> udp_tunnel
> cpuid
> tcp_diag
> inet_diag
> pci_stub
> tun
> nls_utf8
> isofs
> uas
> usb_storage
> sctp
> cbc
> cts
> rpcsec_gss_krb5
> nfsv4
> dns_resolver
> nfs
> lockd
> grace
> fscache
> fuse
> ctr
> ccm
> ip6table_mangle
> ip6t_MASQUERADE
> ip6table_nat
> nf_conntrack_ipv6
> nf_defrag_ipv6
> nf_nat_ipv6
> ip6t_REJECT
> nf_reject_ipv6
> ip6table_filter
> ip6_tables
> nf_conntrack_tftp
> xt_CT
> cpufreq_conservative
> cpufreq_powersave
> cpufreq_userspace
> iptable_raw
> iptable_mangle
> ipt_MASQUERADE
> xt_REDIRECT
> xt_mark
> xt_cgroup
> iptable_nat
> nf_nat_ipv4
> nf_nat
> nf_log_ipv4
> nf_log_common
> xt_LOG
> ipt_REJECT
> nf_reject_ipv4
> nf_conntrack_ipv4
> nf_defrag_ipv4
> xt_tcpudp
> xt_recent
> xt_conntrack
> nf_conntrack
> libcrc32c
> crc32c_generic
> iptable_filter
> intel_rapl
> x86_pkg_temp_thermal
> intel_powerclamp
> kvm_intel
> kvm
> irqbypass
> nls_ascii
> intel_cstate
> nls_cp437
> intel_uncore
> serio_raw
> dell_wmi
> intel_rapl_perf
> vfat
> dell_smm_hwmon
> arc4
> wmi_bmof
> fat
> snd_hda_codec_hdmi
> efi_pstore
> efivars
> dell_rbtn
> dell_laptop
> dell_smbios
> iwlmvm
> dell_wmi_descriptor
> iTCO_wdt
> mac80211
> iTCO_vendor_support
> snd_soc_skl
> iwlwifi
> btusb
> snd_soc_skl_ipc
> btrtl
> btbcm
> snd_soc_sst_ipc
> snd_hda_codec_realtek
> btintel
> snd_soc_sst_dsp
> snd_hda_codec_generic
> snd_hda_ext_core
> uvcvideo
> bluetooth
> snd_soc_acpi
> cfg80211
> videobuf2_vmalloc
> snd_soc_core
> videobuf2_memops
> videobuf2_v4l2
> snd_compress
> rtsx_pci_ms
> drbg
> videobuf2_common
> ansi_cprng
> memstick
> snd_hda_intel
> sg
> videodev
> ecdh_generic
> snd_hda_codec
> rfkill
> media
> snd_hda_core
> joydev
> snd_hwdep
> snd_pcm_oss
> snd_mixer_oss
> snd_pcm
> snd_timer
> snd
> soundcore
> idma64
> tpm_crb
> int3403_thermal
> tpm_tis
> intel_hid
> tpm_tis_core
> tpm
> int3400_thermal
> battery
> evdev
> rng_core
> acpi_thermal_rel
> sparse_keymap
> acpi_pad
> ac
> pcc_cpufreq
> mei_me
> mei
> processor_thermal_device
> int340x_thermal_zone
> intel_pch_thermal
> intel_soc_dts_iosf
> dcdbas
> i2c_dev
> auth_rpcgss
> coretemp
> sunrpc
> efivarfs
> ip_tables
> x_tables
> autofs4
> ext4
> crc16
> mbcache
> jbd2
> fscrypto
> algif_skcipher
> af_alg
> dm_crypt
> dm_mod
> sd_mod
> hid_alps
> hid_generic
> rtsx_pci_sdmmc
> mmc_core
> crct10dif_pclmul
> crc32_pclmul
> crc32c_intel
> ghash_clmulni_intel
> pcbc
> aesni_intel
> aes_x86_64
> crypto_simd
> cryptd
> glue_helper
> rtsx_pci
> ahci
> libahci
> xhci_pci
> i915
> libata
> xhci_hcd
> i2c_algo_bit
> drm_kms_helper
> scsi_mod
> e1000e
> usbcore
> i2c_i801
> usb_common
> intel_lpss_pci
> drm
> thermal
> wmi
> i2c_hid
> hid
> video
> intel_lpss_acpi
> intel_lpss
> button
> 
> ** PCI devices:
> 00:00.0 Host bridge [0600]: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers [8086:5904] (rev 02)
> 	Subsystem: Dell Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Capabilities: <access denied>
> 
> 00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA controller])
> 	Subsystem: Dell HD Graphics 620 [1028:07a0]
> 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 128
> 	Region 0: Memory at ee000000 (64-bit, non-prefetchable) [size=16M]
> 	Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
> 	Region 4: I/O ports at f000 [size=64]
> 	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: i915
> 	Kernel modules: i915
> 
> 00:04.0 Signal processing controller [1180]: Intel Corporation Skylake Processor Thermal Subsystem [8086:1903] (rev 02)
> 	Subsystem: Dell Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem [1028:07a0]
> 	Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Interrupt: pin A routed to IRQ 16
> 	Region 0: Memory at ef240000 (64-bit, non-prefetchable) [size=32K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: proc_thermal
> 	Kernel modules: processor_thermal_device
> 
> 00:14.0 USB controller [0c03]: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller [8086:9d2f] (rev 21) (prog-if 30 [XHCI])
> 	Subsystem: Dell Sunrise Point-LP USB 3.0 xHCI Controller [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 125
> 	Region 0: Memory at ef230000 (64-bit, non-prefetchable) [size=64K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: xhci_hcd
> 	Kernel modules: xhci_pci
> 
> 00:14.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Thermal subsystem [8086:9d31] (rev 21)
> 	Subsystem: Dell Sunrise Point-LP Thermal subsystem [1028:07a0]
> 	Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Interrupt: pin C routed to IRQ 18
> 	Region 0: Memory at ef25a000 (64-bit, non-prefetchable) [size=4K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: intel_pch_thermal
> 	Kernel modules: intel_pch_thermal
> 
> 00:15.0 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 [8086:9d60] (rev 21)
> 	Subsystem: Dell Sunrise Point-LP Serial IO I2C Controller [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0, Cache Line Size: 64 bytes
> 	Interrupt: pin A routed to IRQ 16
> 	Region 0: Memory at ef259000 (64-bit, non-prefetchable) [size=4K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: intel-lpss
> 	Kernel modules: intel_lpss_pci
> 
> 00:15.1 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #1 [8086:9d61] (rev 21)
> 	Subsystem: Dell Sunrise Point-LP Serial IO I2C Controller [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0, Cache Line Size: 64 bytes
> 	Interrupt: pin B routed to IRQ 17
> 	Region 0: Memory at ef258000 (64-bit, non-prefetchable) [size=4K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: intel-lpss
> 	Kernel modules: intel_lpss_pci
> 
> 00:15.2 Signal processing controller [1180]: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #2 [8086:9d62] (rev 21)
> 	Subsystem: Dell Sunrise Point-LP Serial IO I2C Controller [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0, Cache Line Size: 64 bytes
> 	Interrupt: pin C routed to IRQ 18
> 	Region 0: Memory at ef257000 (64-bit, non-prefetchable) [size=4K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: intel-lpss
> 	Kernel modules: intel_lpss_pci
> 
> 00:16.0 Communication controller [0780]: Intel Corporation Sunrise Point-LP CSME HECI #1 [8086:9d3a] (rev 21)
> 	Subsystem: Dell Sunrise Point-LP CSME HECI [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 124
> 	Region 0: Memory at ef256000 (64-bit, non-prefetchable) [size=4K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: mei_me
> 	Kernel modules: mei_me
> 
> 00:16.3 Serial controller [0700]: Intel Corporation Device [8086:9d3d] (rev 21) (prog-if 02 [16550])
> 	Subsystem: Dell Device [1028:07a0]
> 	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Interrupt: pin D routed to IRQ 19
> 	Region 0: I/O ports at f0a0 [size=8]
> 	Region 1: Memory at ef255000 (32-bit, non-prefetchable) [size=4K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: serial
> 
> 00:17.0 SATA controller [0106]: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] [8086:9d03] (rev 21) (prog-if 01 [AHCI 1.0])
> 	Subsystem: Dell Sunrise Point-LP SATA Controller [AHCI mode] [1028:07a0]
> 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 126
> 	Region 0: Memory at ef250000 (32-bit, non-prefetchable) [size=8K]
> 	Region 1: Memory at ef254000 (32-bit, non-prefetchable) [size=256]
> 	Region 2: I/O ports at f090 [size=8]
> 	Region 3: I/O ports at f080 [size=4]
> 	Region 4: I/O ports at f060 [size=32]
> 	Region 5: Memory at ef253000 (32-bit, non-prefetchable) [size=2K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: ahci
> 	Kernel modules: ahci
> 
> 00:1c.0 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port [8086:9d10] (rev f1) (prog-if 00 [Normal decode])
> 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 122
> 	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> 	Memory behind bridge: ef100000-ef1fffff
> 	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
> 	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
> 		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
> 	Capabilities: <access denied>
> 	Kernel driver in use: pcieport
> 
> 00:1c.2 PCI bridge [0604]: Intel Corporation Sunrise Point-LP PCI Express Root Port [8086:9d12] (rev f1) (prog-if 00 [Normal decode])
> 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin C routed to IRQ 123
> 	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
> 	Memory behind bridge: ef000000-ef0fffff
> 	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
> 	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
> 		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
> 	Capabilities: <access denied>
> 	Kernel driver in use: pcieport
> 
> 00:1f.0 ISA bridge [0601]: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E [8086:9d4e] (rev 21)
> 	Subsystem: Dell Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E [1028:07a0]
> 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 
> 00:1f.2 Memory controller [0580]: Intel Corporation Sunrise Point-LP PMC [8086:9d21] (rev 21)
> 	Subsystem: Dell Sunrise Point-LP PMC [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Region 0: Memory at ef24c000 (32-bit, non-prefetchable) [size=16K]
> 
> 00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-LP HD Audio [8086:9d71] (rev 21)
> 	Subsystem: Dell Sunrise Point-LP HD Audio [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 32
> 	Interrupt: pin B routed to IRQ 129
> 	Region 0: Memory at ef248000 (64-bit, non-prefetchable) [size=16K]
> 	Region 4: Memory at ef220000 (64-bit, non-prefetchable) [size=64K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: snd_hda_intel
> 	Kernel modules: snd_hda_intel, snd_soc_skl
> 
> 00:1f.4 SMBus [0c05]: Intel Corporation Sunrise Point-LP SMBus [8086:9d23] (rev 21)
> 	Subsystem: Dell Sunrise Point-LP SMBus [1028:07a0]
> 	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
> 	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Interrupt: pin A routed to IRQ 16
> 	Region 0: Memory at ef252000 (64-bit, non-prefetchable) [size=256]
> 	Region 4: I/O ports at f040 [size=32]
> 	Kernel driver in use: i801_smbus
> 	Kernel modules: i2c_i801
> 
> 00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (4) I219-LM [8086:15d7] (rev 21)
> 	Subsystem: Dell Ethernet Connection (4) I219-LM [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 130
> 	Region 0: Memory at ef200000 (32-bit, non-prefetchable) [size=128K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: e1000e
> 	Kernel modules: e1000e
> 
> 01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01)
> 	Subsystem: Dell RTS525A PCI Express Card Reader [1028:07a0]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 127
> 	Region 1: Memory at ef100000 (32-bit, non-prefetchable) [size=4K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: rtsx_pci
> 	Kernel modules: rtsx_pci
> 
> 02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
> 	Subsystem: Intel Corporation Wireless 8265 / 8275 [8086:0050]
> 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> 	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> 	Latency: 0
> 	Interrupt: pin A routed to IRQ 131
> 	Region 0: Memory at ef000000 (64-bit, non-prefetchable) [size=8K]
> 	Capabilities: <access denied>
> 	Kernel driver in use: iwlwifi
> 	Kernel modules: iwlwifi
> 
> 
> ** USB devices:
> Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Bus 001 Device 002: ID 0bda:568c Realtek Semiconductor Corp. 
> Bus 001 Device 004: ID 0a5c:5832 Broadcom Corp. 
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> 
> 
> -- System Information:
> Debian Release: buster/sid
>   APT prefers unstable
>   APT policy: (500, 'unstable'), (1, 'experimental')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
> 
> Kernel: Linux 4.18.0-2-amd64 (SMP w/4 CPU cores)
> Locale: LANG=it_IT.utf8, LC_CTYPE=it_IT.utf8 (charmap=UTF-8), LANGUAGE=it_IT.utf8 (charmap=UTF-8)
> Shell: /bin/sh linked to /usr/bin/dash
> Init: systemd (via /run/systemd/system)
> LSM: AppArmor: enabled
> 
> Versions of packages linux-image-4.18.0-2-amd64 depends on:
> ii  initramfs-tools [linux-initramfs-tool]  0.132
> ii  kmod                                    25-1
> ii  linux-base                              4.5
> 
> Versions of packages linux-image-4.18.0-2-amd64 recommends:
> ii  apparmor             2.13-8
> ii  firmware-linux-free  3.4
> pn  irqbalance           <none>
> 
> Versions of packages linux-image-4.18.0-2-amd64 suggests:
> pn  debian-kernel-handbook  <none>
> ii  grub-efi-amd64          2.02+dfsg1-6
> pn  linux-doc-4.18          <none>
> 
> Versions of packages linux-image-4.18.0-2-amd64 is related to:
> pn  firmware-amd-graphics     <none>
> pn  firmware-atheros          <none>
> pn  firmware-bnx2             <none>
> pn  firmware-bnx2x            <none>
> pn  firmware-brcm80211        <none>
> pn  firmware-cavium           <none>
> pn  firmware-intel-sound      <none>
> pn  firmware-intelwimax       <none>
> pn  firmware-ipw2x00          <none>
> pn  firmware-ivtv             <none>
> ii  firmware-iwlwifi          20180825+dfsg-1
> pn  firmware-libertas         <none>
> pn  firmware-linux-nonfree    <none>
> ii  firmware-misc-nonfree     20180825+dfsg-1
> pn  firmware-myricom          <none>
> pn  firmware-netxen           <none>
> pn  firmware-qlogic           <none>
> pn  firmware-realtek          <none>
> pn  firmware-samsung          <none>
> pn  firmware-siano            <none>
> pn  firmware-ti-connectivity  <none>
> pn  xen-hypervisor            <none>
> 
> -- no debconf information
> 

-- 
Pali Rohár
pali.rohar@gmail.com

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#62381

From	Gabriele Mazzotta <gabriele.mzt@gmail.com>
Date	2018-10-16 22:30 +0200
Message-ID	<wJE8x-5Y-3@gated-at.bofh.it>
In reply to	#62367

Hi,

there are a couple of commits queued for 4.19 that fix some memory
leaks: https://patchwork.kernel.org/patch/10594683/ and
https://patchwork.kernel.org/patch/10594681/. Looking at the call
trace I'd say the first patch is going to fix your issue.

They should both be included in the stable trees given the tag in
the commit.

Regards,
Gabriele

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#63189

From	Marco d'Itri <md@linux.it>
Date	2019-01-28 20:00 +0100
Message-ID	<xlkit-Bc-1@gated-at.bofh.it>
In reply to	#62381

[Multipart message — attachments visible in raw view] — view raw

Control: close -1 4.19.16-1

On Oct 16, Gabriele Mazzotta <gabriele.mzt@gmail.com> wrote:

> there are a couple of commits queued for 4.19 that fix some memory
> leaks: https://patchwork.kernel.org/patch/10594683/ and
> https://patchwork.kernel.org/patch/10594681/. Looking at the call
> trace I'd say the first patch is going to fix your issue.
Confirmed, thank you.

-- 
ciao,
Marco

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#63190 — Processed: Re: Bug#911023: memory leak in the backlight control of the dell-laptop module

From	"Debian Bug Tracking System" <owner@bugs.debian.org>
Date	2019-01-28 20:00 +0100
Subject	Processed: Re: Bug#911023: memory leak in the backlight control of the dell-laptop module
Message-ID	<xlkit-Bc-11@gated-at.bofh.it>
In reply to	#62367

Processing control commands:

> close -1 4.19.16-1
Bug #911023 [src:linux] memory leak in the backlight control of the dell-laptop module
Marked as fixed in versions linux/4.19.16-1.
Bug #911023 [src:linux] memory leak in the backlight control of the dell-laptop module
Marked Bug as done

-- 
911023: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=911023
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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csiph-web

Bug#911023: memory leak in the backlight control of the dell-laptop module

Contents

#62367 — Bug#911023: memory leak in the backlight control of the dell-laptop module

#62368

#62381

#63189

#63190 — Processed: Re: Bug#911023: memory leak in the backlight control of the dell-laptop module