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Bug#930351: linux-image-4.9.0-9-amd64: soft lockup / stuck in pid_revalidate

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  Bug#930351: linux-image-4.9.0-9-amd64: soft lockup / stuck in pid_revalidate "Bernhard M. Wiedemann" <debianbugs@zq1.de> - 2019-06-11 10:30 +0200
    Bug#930351: linux-image-4.9.0-9-amd64: soft lockup / stuck in pid_revalidate Ben Hutchings <ben@decadent.org.uk> - 2019-06-11 22:40 +0200
      Bug#930351: linux-image-4.9.0-9-amd64: soft lockup / stuck in pid_revalidate "Bernhard M. Wiedemann" <bernhardout@lsmod.de> - 2019-06-12 11:00 +0200
      Bug#930351: linux-image-4.9.0-9-amd64: soft lockup / stuck in pid_revalidate "Bernhard M. Wiedemann" <bernhardout@lsmod.de> - 2019-06-13 13:40 +0200

#64238 — Bug#930351: linux-image-4.9.0-9-amd64: soft lockup / stuck in pid_revalidate

Package: src:linux
Version: 4.9.168-1+deb9u2
Severity: important

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
     ran the server for some days with KVM VMs on top
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
     Tried to ssh + ping.
   * What was the outcome of this action?
     ssh session got stuck. Ping still worked.
   * What outcome did you expect instead?
     should work

*** End of the template - remove these template lines ***


-- Package-specific info:
** Version:
Linux version 4.9.0-9-amd64 (debian-kernel@lists.debian.org) (gcc version 6.3.0 20170516 (Debian 6.3.0-18+deb9u1) ) #1 SMP Debian 4.9.168-1+deb9u2 (2019-05-13)

** Command line:
BOOT_IMAGE=/vmlinuz-4.9.0-9-amd64 root=UUID=83dcd5bf-42df-4931-aa7a-e09d8ecf6bb5 ro nomodeset nohz=off panic=30

** Not tainted

** Kernel log:
(obtained via netconsole)
Message from syslogd@golf at Jun 11 06:37:56 ...
 kernel:[1616241.072680] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [ps:28525]

[1626796.848128] CPU: 5 PID: 28525 Comm: ps Tainted: G      D      L  4.9.0-9-amd64 #1 Debian 4.9.168-1+deb9u2
[1626796.848205] Hardware name: MSI MS-7816/H87-G43 (MS-7816), BIOS V2.14B4 07/31/2013
[1626796.848277] task: ffff88d2c5923080 task.stack: ffff9e7fcf8a4000
[1626796.848337] RIP: 0010:[<ffffffff98ec5bdf>]  [<ffffffff98ec5bdf>] native_queued_spin_lock_slowpath+0x10f/0x1a0
[1626796.848459] RSP: 0018:ffff9e7fcf8a7c70  EFLAGS: 00000246
[1626796.848518] RAX: 0000000000000000 RBX: ffff88da78f18140 RCX: 0000000000000003  
[1626796.848595] RDX: ffff88da9eb59480 RSI: 0000000000180000 RDI: ffff88da78f18860  
[1626796.848673] RBP: ffff88da787e5088 R08: 0000000000000000 R09: ffff88d4fc338025  
[1626796.848745] R10: ffff88da9d1b99f8 R11: 0000000000000000 R12: ffff88da78f18860  
[1626796.848817] R13: ffff88da786fecc0 R14: ffff9e7fcf8a7d70 R15: ffff88da9d4d44e0  
[1626796.848889] FS:  00007f461c3ba880(0000) GS:ffff88da9eb40000(0000) knlGS:0000000000000000
[1626796.848962] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1626796.849020] CR2: 0000557cc5139688 CR3: 000000007e5f0000 CR4: 0000000000162670  
[1626796.849093] Stack:
[1626796.849147]  ffffffff9941a79d ffffffff9907e5af ffff9e7fcf8a7d78 ffff9e7fcf8a7de0
[1626796.849370]  ffff88da9d1b99c0 ffff9e7fcf8a7d78 ffffffff990175cf ffff9e7fcf8a7d6c
[1626796.849597]  ffff9e7fcf8a7de0 ffff9e7fcf8a7cf0 679aab8063728a19 ffff9e7fcf8a7d78
[1626796.849817] Call Trace:
[1626796.849872]  [<ffffffff9941a79d>] ? _raw_spin_lock+0x1d/0x20
[1626796.849931]  [<ffffffff9907e5af>] ? pid_revalidate+0x4f/0xf0
[1626796.849994]  [<ffffffff990175cf>] ? lookup_fast+0x2cf/0x2f0
[1626796.850054]  [<ffffffff9901a908>] ? path_openat+0x178/0x15b0
[1626796.850113]  [<ffffffff9901c301>] ? filename_lookup+0xf1/0x180
[1626796.850173]  [<ffffffff9901d001>] ? do_filp_open+0x91/0x100
[1626796.850233]  [<ffffffff99007c9a>] ? __check_object_size+0xfa/0x1d8
[1626796.850294]  [<ffffffff9900a50e>] ? do_sys_open+0x12e/0x210
[1626796.850356]  [<ffffffff98e03b7d>] ? do_syscall_64+0x8d/0x100
[1626796.850417]  [<ffffffff9941a88e>] ? entry_SYSCALL_64_after_swapgs+0x58/0xc6
[1626796.850478] Code: 12 83 e0 03 83 e9 01 48 c1 e0 04 48 63 c9 48 05 80 94 01 00 48 03 04 cd e0 f3 86 99 48 89 10 8b 42 08 85 c0 75 09 f3 90 8b 42 08 <85> c0 74 f7 4c 8b 02 4d 85 c0 74 08 41 0f 18 08 eb 02 f3 90 8b


and another had
[1626780.842859] Call Trace:
[1626780.842914]  [<ffffffff9941a79d>] ? _raw_spin_lock+0x1d/0x20
[1626780.842974]  [<ffffffff9907e5af>] ? pid_revalidate+0x4f/0xf0
[1626780.843034]  [<ffffffff990175cf>] ? lookup_fast+0x2cf/0x2f0
[1626780.843093]  [<ffffffff99018334>] ? walk_component+0x44/0x330
[1626780.843153]  [<ffffffff990195f7>] ? path_lookupat+0x67/0x120
[1626780.843216]  [<ffffffff9901c2c1>] ? filename_lookup+0xb1/0x180
[1626780.843277]  [<ffffffff990022f8>] ? mem_cgroup_commit_charge+0x78/0x4b0
[1626780.843340]  [<ffffffff99007c9a>] ? __check_object_size+0xfa/0x1d8
[1626780.843401]  [<ffffffff99163a38>] ? strncpy_from_user+0x48/0x160
[1626780.843465]  [<ffffffff99010cf9>] ? vfs_fstatat+0x59/0xb0
[1626780.843526]  [<ffffffff990112ad>] ? SYSC_newlstat+0x2d/0x60
[1626780.843586]  [<ffffffff98e03b7d>] ? do_syscall_64+0x8d/0x100
[1626780.843648]  [<ffffffff9941a88e>] ? entry_SYSCALL_64_after_swapgs+0x58/0xc6


** Model information
sys_vendor: MSI
product_name: MS-7816
product_version: 1.0
chassis_vendor: MSI
chassis_version: 1.0
bios_vendor: American Megatrends Inc.
bios_version: V2.14B4
board_vendor: MSI
board_name: H87-G43 (MS-7816)
board_version: 1.0

** Loaded modules:
ipt_REJECT
nf_reject_ipv4
iptable_filter
ipt_MASQUERADE
nf_nat_masquerade_ipv4
xt_multiport
xt_nat
xt_tcpudp
iptable_nat
nf_conntrack_ipv4
nf_defrag_ipv4
nf_nat_ipv4
nf_nat
nf_conntrack
ip_tables
x_tables
nfnetlink_queue
nfnetlink_log
nfnetlink
bluetooth
rfkill
cpufreq_conservative
cpufreq_powersave
cpufreq_userspace
algif_skcipher
af_alg
tun
loop
dm_crypt
intel_rapl
x86_pkg_temp_thermal
intel_powerclamp
coretemp
kvm_intel
kvm
irqbypass
crct10dif_pclmul
crc32_pclmul
i915
ghash_clmulni_intel
intel_cstate
iTCO_wdt
iTCO_vendor_support
mei_me
mei
intel_uncore
mxm_wmi
drm_kms_helper
intel_rapl_perf
pcspkr
lpc_ich
drm
evdev
serio_raw
shpchp
wmi
sg
button
mfd_core
video
i2c_algo_bit
ext4
crc16
jbd2
fscrypto
ecb
mbcache
btrfs
raid10
raid456
async_raid6_recov
async_memcpy
async_pq
async_xor
async_tx
xor
raid6_pq
libcrc32c
crc32c_generic
raid0
multipath
linear
dm_mirror
dm_region_hash
dm_log
dm_mod
netconsole
configfs
raid1
md_mod
sd_mod
ahci
libahci
crc32c_intel
aesni_intel
aes_x86_64
glue_helper
lrw
gf128mul
ablk_helper
cryptd
libata
xhci_pci
ehci_pci
ehci_hcd
xhci_hcd
i2c_i801
scsi_mod
i2c_smbus
r8169
mii
usbcore
usb_common
fan
thermal

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 4th Gen Core Processor DRAM Controller [8086:0c00] (rev 06)
	Subsystem: Micro-Star International Co., Ltd. [MSI] 4th Gen Core Processor DRAM Controller [1462:7816]
	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>
	Kernel driver in use: hsw_uncore

00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
	Subsystem: Micro-Star International Co., Ltd. [MSI] Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [1462:7816]
	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 11
	Region 0: Memory at f7800000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at e0000000 (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 modules: i915

00:14.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI [8086:8c31] (rev 04) (prog-if 30 [XHCI])
	Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family USB xHCI [1462:7816]
	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 27
	Region 0: Memory at f7c00000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci

00:16.0 Communication controller [0780]: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 [8086:8c3a] (rev 04)
	Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family MEI Controller [1462:7816]
	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 29
	Region 0: Memory at f7c16000 (64-bit, non-prefetchable) [size=16]
	Capabilities: <access denied>
	Kernel driver in use: mei_me
	Kernel modules: mei_me

00:1a.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #2 [8086:8c2d] (rev 04) (prog-if 20 [EHCI])
	Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family USB EHCI [1462:7816]
	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 16
	Region 0: Memory at f7c14000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 [8086:8c10] (rev d4) (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, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	I/O behind bridge: 00002000-00002fff
	Memory behind bridge: df200000-df3fffff
	Prefetchable memory behind bridge: 00000000df400000-00000000df5fffff
	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
	Kernel modules: shpchp

00:1c.1 PCI bridge [0604]: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #2 [8086:8c12] (rev d4) (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, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 0000e000-0000efff
	Prefetchable memory behind bridge: 00000000f0000000-00000000f00fffff
	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
	Kernel modules: shpchp

00:1c.3 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev d4) (prog-if 01 [Subtractive 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, Cache Line Size: 64 bytes
	Interrupt: pin D routed to IRQ 10
	Bus: primary=00, secondary=03, subordinate=04, sec-latency=0
	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>

00:1d.0 USB controller [0c03]: Intel Corporation 8 Series/C220 Series Chipset Family USB EHCI #1 [8086:8c26] (rev 04) (prog-if 20 [EHCI])
	Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family USB EHCI [1462:7816]
	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 23
	Region 0: Memory at f7c13000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: <access denied>
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci

00:1f.0 ISA bridge [0601]: Intel Corporation H87 Express LPC Controller [8086:8c4a] (rev 04)
	Subsystem: Micro-Star International Co., Ltd. [MSI] H87 Express LPC Controller [1462:7816]
	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
	Capabilities: <access denied>
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich

00:1f.2 SATA controller [0106]: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] [8086:8c02] (rev 04) (prog-if 01 [AHCI 1.0])
	Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] [1462:7816]
	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 B routed to IRQ 28
	Region 0: I/O ports at f0b0 [size=8]
	Region 1: I/O ports at f0a0 [size=4]
	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 f7c12000 (32-bit, non-prefetchable) [size=2K]
	Capabilities: <access denied>
	Kernel driver in use: ahci
	Kernel modules: ahci

00:1f.3 SMBus [0c05]: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller [8086:8c22] (rev 04)
	Subsystem: Micro-Star International Co., Ltd. [MSI] 8 Series/C220 Series Chipset Family SMBus Controller [1462:7816]
	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 C routed to IRQ 18
	Region 0: Memory at f7c11000 (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

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
	Subsystem: Micro-Star International Co., Ltd. [MSI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1462:7816]
	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 26
	Region 0: I/O ports at e000 [size=256]
	Region 2: Memory at f0004000 (64-bit, prefetchable) [size=4K]
	Region 4: Memory at f0000000 (64-bit, prefetchable) [size=16K]
	Capabilities: <access denied>
	Kernel driver in use: r8169
	Kernel modules: r8169

03:00.0 PCI bridge [0604]: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge [1b21:1080] (rev 03) (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, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 10
	Bus: primary=03, secondary=04, subordinate=04, sec-latency=32
	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 modules: shpchp


** USB devices:
Bus 002 Device 002: ID 8087:8000 Intel Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


-- System Information:
Debian Release: 9.9
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-9-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_DK.utf8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)

Versions of packages linux-image-4.9.0-9-amd64 depends on:
ii  initramfs-tools [linux-initramfs-tool]  0.130
ii  kmod                                    23-2
ii  linux-base                              4.5

Versions of packages linux-image-4.9.0-9-amd64 recommends:
ii  firmware-linux-free  3.4
ii  irqbalance           1.1.0-2.3

Versions of packages linux-image-4.9.0-9-amd64 suggests:
pn  debian-kernel-handbook  <none>
ii  grub-pc                 2.02~beta3-5+deb9u1
pn  linux-doc-4.9           <none>

Versions of packages linux-image-4.9.0-9-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>
pn  firmware-iwlwifi          <none>
pn  firmware-libertas         <none>
pn  firmware-linux-nonfree    <none>
pn  firmware-misc-nonfree     <none>
pn  firmware-myricom          <none>
pn  firmware-netxen           <none>
pn  firmware-qlogic           <none>
ii  firmware-realtek          20161130-5
pn  firmware-samsung          <none>
pn  firmware-siano            <none>
pn  firmware-ti-connectivity  <none>
pn  xen-hypervisor            <none>

-- no debconf information

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#64247

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On Tue, 2019-06-11 at 10:13 +0200, Bernhard M. Wiedemann wrote:
[...]
>  kernel:[1616241.072680] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [ps:28525]
> 
> [1626796.848128] CPU: 5 PID: 28525 Comm: ps Tainted: G      D      L  4.9.0-9-amd64 #1 Debian 4.9.168-1+deb9u2
[...]

Please provide the log for the first BUG/Oops error, which will incldue
the text "Not tainted" instead of "Tainted: ..."

Ben.

-- 
Ben Hutchings
For every complex problem
there is a solution that is simple, neat, and wrong.

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#64250

On 11/06/2019 22.28, Ben Hutchings wrote:
> On Tue, 2019-06-11 at 10:13 +0200, Bernhard M. Wiedemann wrote:
> [...]
>>  kernel:[1616241.072680] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [ps:28525]
>>
>> [1626796.848128] CPU: 5 PID: 28525 Comm: ps Tainted: G      D      L  4.9.0-9-amd64 #1 Debian 4.9.168-1+deb9u2
> [...]
> 
> Please provide the log for the first BUG/Oops error, which will incldue
> the text "Not tainted" instead of "Tainted: ..."

Unfortunately, the first of those was already scrolled out of the
buffer. I'm now piping netconsole netcat to tee this time. We can just
ignore the bug until it re-occurs.

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#64253

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On 11/06/2019 22.28, Ben Hutchings wrote:
> On Tue, 2019-06-11 at 10:13 +0200, Bernhard M. Wiedemann wrote:
> [...]
>>  kernel:[1616241.072680] NMI watchdog: BUG: soft lockup - CPU#5 stuck for 22s! [ps:28525]
>>
>> [1626796.848128] CPU: 5 PID: 28525 Comm: ps Tainted: G      D      L  4.9.0-9-amd64 #1 Debian 4.9.168-1+deb9u2
> [...]
> 
> Please provide the log for the first BUG/Oops error, which will incldue
> the text "Not tainted" instead of "Tainted: ..."

Found the very first call trace in a rotated syslog:

general protection fault: 0000 [#1] SMP
CPU: 4 PID: 76 Comm: kswapd0 Not tainted 4.9.0-9-amd64 #1 Debian
4.9.168-1+deb9u2
Hardware name: MSI MS-7816/H87-G43 (MS-7816), BIOS V2.14B4 07/31/2013
task: ffff88da78f18140 task.stack: ffff9e7fc37f4000
RIP: 0010:[<ffffffff98fc93e7>]  [<ffffffff98fc93e7>]
page_lock_anon_vma_read+0x27/0xe0
RSP: 0018:ffff9e7fc37f7ae0  EFLAGS: 00010202
RAX: 0000000000000001 RBX: 7fff89da77012751 RCX: ffff9e7fc37f7c18
RDX: 0000000000000000 RSI: ffff9e7fc37f7b78 RDI: ffffee1c5eafdf00
RBP: ffffee1c5eafdf00 R08: ffffee1c5eafdf20 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000004 R12: 0000000000000000
R13: ffff9e7fc37f7b78 R14: 0000000000000010 R15: ffffee1c5eafdf20
FS:  0000000000000000(0000) GS:ffff88da9eb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff304e0138 CR3: 0000000534208000 CR4: 0000000000162670
Stack:
 ffffee1c5eafdf00 ffff9e7fc37f7c18 0000000000000000 ffff9e7fc37f7b78
 ffffffff98fc7403 00007efe00000000 00000007efef717b ffff88da77012750
 000000007a700bd0 ffffee1c5eafdf00 ffff9e7fc37f7c18 0000000000000000
Call Trace:
 [<ffffffff98fc7403>] ? rmap_walk_anon+0x1a3/0x280
 [<ffffffff98fc974e>] ? page_referenced+0x10e/0x180
 [<ffffffff98fc8040>] ? page_check_address_transhuge+0x440/0x440
 [<ffffffff98fc93c0>] ? page_get_anon_vma+0x80/0x80
 [<ffffffff98f9bf1b>] ? shrink_active_list+0x19b/0x350
 [<ffffffff98f9c76a>] ? shrink_node_memcg+0x69a/0x7d0
 [<ffffffff98f9c982>] ? shrink_node+0xe2/0x340
 [<ffffffff98f9d953>] ? kswapd+0x2e3/0x6e0
 [<ffffffff98f9d670>] ? mem_cgroup_shrink_node+0x170/0x170
 [<ffffffff98e9a969>] ? kthread+0xd9/0xf0
 [<ffffffff9941a9a4>] ? __switch_to_asm+0x34/0x70
 [<ffffffff98e9a890>] ? kthread_park+0x60/0x60
 [<ffffffff9941aa37>] ? ret_from_fork+0x57/0x70

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