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Groups > linux.debian.kernel > #84280 > unrolled thread
| Started by | Nye Liu <nyet@nyet.org> |
|---|---|
| First post | 2024-10-15 21:30 +0200 |
| Last post | 2025-03-27 23:30 +0100 |
| Articles | 6 — 4 participants |
Back to article view | Back to linux.debian.kernel
Bug#1085177: linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait Nye Liu <nyet@nyet.org> - 2024-10-15 21:30 +0200
Processed: Re: Bug#1085177: linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait "Debian Bug Tracking System" <owner@bugs.debian.org> - 2024-10-19 16:20 +0200
Bug#1085177: linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait Bastian Blank <waldi@debian.org> - 2024-10-19 16:20 +0200
Bug#1085177: linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait Nye Liu <nyet@nyet.org> - 2024-10-22 03:00 +0200
Bug#1085177: linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait Salvatore Bonaccorso <carnil@debian.org> - 2025-03-22 14:50 +0100
Bug#1085177: marked as done (linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-03-27 23:30 +0100
| From | Nye Liu <nyet@nyet.org> |
|---|---|
| Date | 2024-10-15 21:30 +0200 |
| Subject | Bug#1085177: linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait |
| Message-ID | <JxVoZ-1R1F-3@gated-at.bofh.it> |
Package: src:linux
Version: 6.11.2-1
Severity: important
Dear Maintainer:
kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait.
Symptom is >1.0 load though cpu utilization is nearly zero and ps shows no user
space process consuming CPU time or stuck in iowait.
# uptime
12:05:13 up 23:56, 3 users, load average: 1.20, 1.14, 1.15
# nice top -H -n 1 -b | head -20
top - 12:06:34 up 23:58, 3 users, load average: 1.16, 1.13, 1.15
Threads: 271 total, 1 running, 270 sleeping, 0 stopped, 0 zombie
%Cpu(s): 4.0 us, 4.0 sy, 8.0 ni, 76.0 id, 8.0 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 9952.3 total, 1924.5 free, 1447.2 used, 6887.3 buff/cache
MiB Swap: 5017.0 total, 5017.0 free, 0.0 used. 8505.1 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
226080 root 30 10 11236 5944 3768 R 8.3 0.1 0:00.02 top
1 root 20 0 23192 14804 10288 S 0.0 0.1 0:09.83 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.04 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.00 pool_wo+
4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker+
5 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker+
6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker+
7 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker+
9 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker+
11 root 20 0 0 0 0 I 0.0 0.0 0:00.00 kworker+
12 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker+
13 root 20 0 0 0 0 I 0.0 0.0 0:00.00 rcu_tas+
14 root 20 0 0 0 0 I 0.0 0.0 0:00.00 rcu_tas+
# for x in {1..100} ; do ps -aeos,user,comm:30,wchan | grep "^[RD]" ; sleep 0.1 ; done | sort | uniq -c | sort -nbr | head -20
100 R root ps -
100 D root kworker/0:0+events qxl_fence_wait
5 R root kworker/1:1-events -
2 R root kworker/1:1-mm_percpu_wq -
2 D root jbd2/vda1-8 jbd2_journal_commit_transaction
1 R www-data apache2 -
1 R root rcu_preempt -
1 R root atopacctd -
# lsmod | grep qxl
qxl 94208 0
drm_ttm_helper 16384 2 qxl
ttm 102400 2 qxl,drm_ttm_helper
drm_kms_helper 249856 2 qxl,drm_ttm_helper
drm 765952 5 drm_kms_helper,qxl,drm_ttm_helper,ttm
-- Package-specific info:
** Version:
Linux version 6.11.2-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-6) 14.2.0, GNU ld (GNU Binutils for Debian) 2.43.1) #1 SMP PREEMPT_DYNAMIC Debian 6.11.2-1 (2024-10-05)
** Command line:
BOOT_IMAGE=/boot/vmlinuz-6.11.2-amd64 root=UUID=23ec4bac-fce0-4c7c-ab2a-5c8439eba536 ro
** Not tainted
** Kernel log:
[85635.426514] [TTM] Buffer eviction failed
[85635.426765] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85635.426955] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85650.526409] [TTM] Buffer eviction failed
[85650.527134] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85650.527818] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85665.630241] [TTM] Buffer eviction failed
[85665.631068] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85665.631826] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85680.733977] [TTM] Buffer eviction failed
[85680.734169] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85680.734340] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85695.837953] [TTM] Buffer eviction failed
[85695.838827] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85710.941737] [TTM] Buffer eviction failed
[85710.942469] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85710.943158] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85726.045577] [TTM] Buffer eviction failed
[85726.046299] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85726.046984] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85741.149425] [TTM] Buffer eviction failed
[85741.150165] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85741.150856] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85756.253230] [TTM] Buffer eviction failed
[85756.253964] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85756.254655] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85771.357027] [TTM] Buffer eviction failed
[85771.357232] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85771.357413] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85786.460903] [TTM] Buffer eviction failed
[85786.461695] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85786.462458] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85801.564709] [TTM] Buffer eviction failed
[85801.565438] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85801.566128] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85816.668578] [TTM] Buffer eviction failed
[85816.669320] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85816.670011] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85831.772334] [TTM] Buffer eviction failed
[85831.773091] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85831.773839] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85846.876101] [TTM] Buffer eviction failed
[85846.876912] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85846.877716] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85861.980132] [TTM] Buffer eviction failed
[85861.981017] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85861.981707] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85877.083892] [TTM] Buffer eviction failed
[85877.084637] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85877.085322] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85892.187645] [TTM] Buffer eviction failed
[85892.188391] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85892.189108] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85907.291508] [TTM] Buffer eviction failed
[85907.292233] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85907.292922] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85922.395317] [TTM] Buffer eviction failed
[85922.396131] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85922.396914] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85937.499189] [TTM] Buffer eviction failed
[85937.499918] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85952.602982] [TTM] Buffer eviction failed
[85952.603181] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85952.603366] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85967.706831] [TTM] Buffer eviction failed
[85967.707554] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85967.708241] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85982.810606] [TTM] Buffer eviction failed
[85982.811373] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85982.812077] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[85997.914490] [TTM] Buffer eviction failed
[85997.915215] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[85997.915904] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86013.018299] [TTM] Buffer eviction failed
[86013.019095] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86013.019849] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86028.122138] [TTM] Buffer eviction failed
[86028.122954] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86028.123713] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86043.225945] [TTM] Buffer eviction failed
[86043.226742] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86043.227496] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86058.329811] [TTM] Buffer eviction failed
[86058.330539] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86058.331229] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86073.433563] [TTM] Buffer eviction failed
[86073.434340] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86073.435080] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86088.537456] [TTM] Buffer eviction failed
[86088.538255] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86088.539017] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86103.641217] [TTM] Buffer eviction failed
[86103.641979] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86103.642668] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86118.745053] [TTM] Buffer eviction failed
[86118.745918] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86118.746692] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
[86133.848852] [TTM] Buffer eviction failed
[86133.849692] qxl 0000:00:01.0: object_init failed for (4096, 0x00000001)
[86133.850408] [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM BO
** Model information
sys_vendor: QEMU
product_name: Standard PC (Q35 + ICH9, 2009)
product_version: pc-q35-5.2
chassis_vendor: QEMU
chassis_version: pc-q35-5.2
bios_vendor: SeaBIOS
bios_version: 1.14.0-2
** Loaded modules:
sctp
ip6_udp_tunnel
udp_tunnel
ipt_REJECT
nf_reject_ipv4
xt_multiport
nft_compat
nf_tables
binfmt_misc
intel_rapl_msr
intel_rapl_common
skx_edac_common
nfit
libnvdimm
kvm_intel
kvm
crct10dif_pclmul
ghash_clmulni_intel
sha512_ssse3
sha256_ssse3
sha1_ssse3
aesni_intel
gf128mul
crypto_simd
cryptd
snd_hda_codec_generic
snd_hda_intel
snd_intel_dspcfg
snd_intel_sdw_acpi
snd_hda_codec
snd_hda_core
qxl
snd_hwdep
snd_pcm
drm_ttm_helper
ttm
drm_kms_helper
iTCO_wdt
intel_pmc_bxt
snd_timer
iTCO_vendor_support
pcspkr
snd
watchdog
virtio_balloon
joydev
button
virtio_console
soundcore
evdev
serio_raw
loop
drm
efi_pstore
configfs
nfnetlink
vsock_loopback
vmw_vsock_virtio_transport_common
vmw_vsock_vmci_transport
vsock
vmw_vmci
qemu_fw_cfg
virtio_rng
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
btrfs
blake2b_generic
xor
raid6_pq
libcrc32c
crc32c_generic
hid_generic
usbhid
hid
xhci_pci
xhci_hcd
ahci
libahci
libata
usbcore
scsi_mod
virtio_net
crc32_pclmul
crc32c_intel
net_failover
i2c_i801
i2c_smbus
psmouse
usb_common
scsi_common
lpc_ich
virtio_blk
failover
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller [8086:29c0]
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
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-
00:01.0 VGA compatible controller [0300]: Red Hat, Inc. QXL paravirtual graphic card [1b36:0100] (rev 05) (prog-if 00 [VGA controller])
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
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 21
Region 0: Memory at f4000000 (32-bit, non-prefetchable) [size=64M]
Region 1: Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
Region 2: Memory at fce14000 (32-bit, non-prefetchable) [size=8K]
Region 3: I/O ports at c040 [size=32]
Expansion ROM at 000c0000 [disabled] [size=128K]
Kernel driver in use: qxl
Kernel modules: qxl
00:02.0 PCI bridge [0604]: Red Hat, Inc. QEMU PCIe Root port [1b36:000c] (prog-if 00 [Normal decode])
Subsystem: Red Hat, Inc. QEMU PCIe Root port [1b36:0000]
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 22
Region 0: Memory at fce16000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 1000-1fff [size=4K] [16-bit]
Memory behind bridge: fcc00000-fcdfffff [size=2M] [32-bit]
Prefetchable memory behind bridge: fea00000-febfffff [size=2M] [32-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:02.1 PCI bridge [0604]: Red Hat, Inc. QEMU PCIe Root port [1b36:000c] (prog-if 00 [Normal decode])
Subsystem: Red Hat, Inc. QEMU PCIe Root port [1b36:0000]
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 22
Region 0: Memory at fce17000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 2000-2fff [size=4K] [16-bit]
Memory behind bridge: fca00000-fcbfffff [size=2M] [32-bit]
Prefetchable memory behind bridge: fe800000-fe9fffff [size=2M] [32-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:02.2 PCI bridge [0604]: Red Hat, Inc. QEMU PCIe Root port [1b36:000c] (prog-if 00 [Normal decode])
Subsystem: Red Hat, Inc. QEMU PCIe Root port [1b36:0000]
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 22
Region 0: Memory at fce18000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: 3000-3fff [size=4K] [16-bit]
Memory behind bridge: fc800000-fc9fffff [size=2M] [32-bit]
Prefetchable memory behind bridge: fe600000-fe7fffff [size=2M] [32-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:02.3 PCI bridge [0604]: Red Hat, Inc. QEMU PCIe Root port [1b36:000c] (prog-if 00 [Normal decode])
Subsystem: Red Hat, Inc. QEMU PCIe Root port [1b36:0000]
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 22
Region 0: Memory at fce19000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
I/O behind bridge: 4000-4fff [size=4K] [16-bit]
Memory behind bridge: fc600000-fc7fffff [size=2M] [32-bit]
Prefetchable memory behind bridge: fe400000-fe5fffff [size=2M] [32-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:02.4 PCI bridge [0604]: Red Hat, Inc. QEMU PCIe Root port [1b36:000c] (prog-if 00 [Normal decode])
Subsystem: Red Hat, Inc. QEMU PCIe Root port [1b36:0000]
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 22
Region 0: Memory at fce1a000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
I/O behind bridge: 5000-5fff [size=4K] [16-bit]
Memory behind bridge: fc400000-fc5fffff [size=2M] [32-bit]
Prefetchable memory behind bridge: fe200000-fe3fffff [size=2M] [32-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:02.5 PCI bridge [0604]: Red Hat, Inc. QEMU PCIe Root port [1b36:000c] (prog-if 00 [Normal decode])
Subsystem: Red Hat, Inc. QEMU PCIe Root port [1b36:0000]
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 22
Region 0: Memory at fce1b000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
I/O behind bridge: 6000-6fff [size=4K] [16-bit]
Memory behind bridge: fc200000-fc3fffff [size=2M] [32-bit]
Prefetchable memory behind bridge: fe000000-fe1fffff [size=2M] [32-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:02.6 PCI bridge [0604]: Red Hat, Inc. QEMU PCIe Root port [1b36:000c] (prog-if 00 [Normal decode])
Subsystem: Red Hat, Inc. QEMU PCIe Root port [1b36:0000]
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 22
Region 0: Memory at fce1c000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
I/O behind bridge: 7000-7fff [size=4K] [16-bit]
Memory behind bridge: fc000000-fc1fffff [size=2M] [32-bit]
Prefetchable memory behind bridge: fde00000-fdffffff [size=2M] [32-bit]
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport
00:1b.0 Audio device [0403]: Intel Corporation 82801I (ICH9 Family) HD Audio Controller [8086:293e] (rev 03)
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
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 43
Region 0: Memory at fce10000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:1f.0 ISA bridge [0601]: Intel Corporation 82801IB (ICH9) LPC Interface Controller [8086:2918] (rev 02)
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
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-
Kernel driver in use: lpc_ich
Kernel modules: lpc_ich
00:1f.2 SATA controller [0106]: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode] [8086:2922] (rev 02) (prog-if 01 [AHCI 1.0])
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
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 37
Region 4: I/O ports at c060 [size=32]
Region 5: Memory at fce1d000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:1f.3 SMBus [0c05]: Intel Corporation 82801I (ICH9 Family) SMBus Controller [8086:2930] (rev 02)
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
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 4: I/O ports at 0700 [size=64]
Kernel driver in use: i801_smbus
Kernel modules: i2c_i801
01:00.0 Ethernet controller [0200]: Red Hat, Inc. Virtio network device [1af4:1041] (rev 01)
Subsystem: Red Hat, Inc. Virtio 1.0 network device [1af4:1100]
Physical Slot: 0
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 22
Region 1: Memory at fcc40000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at fea00000 (64-bit, prefetchable) [size=16K]
Expansion ROM at fcc00000 [disabled] [size=256K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
02:00.0 USB controller [0c03]: Red Hat, Inc. QEMU XHCI Host Controller [1b36:000d] (rev 01) (prog-if 30 [XHCI])
Subsystem: Red Hat, Inc. QEMU XHCI Host Controller [1af4:1100]
Physical Slot: 0-1
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 22
Region 0: Memory at fca00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
03:00.0 Communication controller [0780]: Red Hat, Inc. Virtio console [1af4:1043] (rev 01)
Subsystem: Red Hat, Inc. Virtio 1.0 console [1af4:1100]
Physical Slot: 0-2
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 22
Region 1: Memory at fc800000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at fe600000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
04:00.0 SCSI storage controller [0100]: Red Hat, Inc. Virtio block device [1af4:1042] (rev 01)
Subsystem: Red Hat, Inc. Virtio 1.0 block device [1af4:1100]
Physical Slot: 0-3
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 22
Region 1: Memory at fc600000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at fe400000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
05:00.0 Unclassified device [00ff]: Red Hat, Inc. Virtio memory balloon [1af4:1045] (rev 01)
Subsystem: Red Hat, Inc. Virtio 1.0 memory balloon [1af4:1100]
Physical Slot: 0-4
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 22
Region 4: Memory at fe200000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
06:00.0 Unclassified device [00ff]: Red Hat, Inc. Virtio RNG [1af4:1044] (rev 01)
Subsystem: Red Hat, Inc. Virtio 1.0 RNG [1af4:1100]
Physical Slot: 0-5
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 22
Region 4: Memory at fe000000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
** USB devices:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU Tablet
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-- System Information:
Debian Release: trixie/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.11.2-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages linux-image-6.11.2-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.145
ii kmod 33+20240816-2
ii linux-base 4.10.1
Versions of packages linux-image-6.11.2-amd64 recommends:
ii apparmor 3.0.8-1
Versions of packages linux-image-6.11.2-amd64 suggests:
pn debian-kernel-handbook <none>
ii firmware-linux-free 20240610-1
ii grub-pc 2.12~rc1-11
pn linux-doc-6.11 <none>
Versions of packages linux-image-6.11.2-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>
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>
pn firmware-realtek <none>
pn firmware-samsung <none>
pn firmware-siano <none>
pn firmware-ti-connectivity <none>
pn xen-hypervisor <none>
-- no debconf information
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| From | "Debian Bug Tracking System" <owner@bugs.debian.org> |
|---|---|
| Date | 2024-10-19 16:20 +0200 |
| Subject | Processed: Re: Bug#1085177: linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait |
| Message-ID | <Jzitb-2K8Z-11@gated-at.bofh.it> |
| In reply to | #84280 |
Processing control commands: > tag -1 moreinfo Bug #1085177 [src:linux] linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait Added tag(s) moreinfo. -- 1085177: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1085177 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
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| From | Bastian Blank <waldi@debian.org> |
|---|---|
| Date | 2024-10-19 16:20 +0200 |
| Message-ID | <Jzitb-2K8Z-5@gated-at.bofh.it> |
| In reply to | #84280 |
Control: tag -1 moreinfo Hi On Tue, Oct 15, 2024 at 12:13:09PM -0700, Nye Liu wrote: > ** Model information > sys_vendor: QEMU > product_name: Standard PC (Q35 + ICH9, 2009) > product_version: pc-q35-5.2 > chassis_vendor: QEMU > chassis_version: pc-q35-5.2 > bios_vendor: SeaBIOS > bios_version: 1.14.0-2 Given that qxl is a virtualized GPU, please provide information about the host that would be useful to reproduce the problem. This is a Debian 11? What about upgrading to the latest stable? What are the qemu command line options? Bastian -- She won' go Warp 7, Cap'n! The batteries are dead!
[toc] | [prev] | [next] | [standalone]
| From | Nye Liu <nyet@nyet.org> |
|---|---|
| Date | 2024-10-22 03:00 +0200 |
| Message-ID | <JAbpD-3lK3-1@gated-at.bofh.it> |
| In reply to | #84297 |
On Sat, 19 Oct 2024 16:13:04 +0200 Bastian Blank <waldi@debian.org> wrote: > This is a Debian 11? What about upgrading to the latest stable? Yes this is Debian 11 > What are the qemu command line options? Will dig around, but we have since disable QLX in favor of virtio (though it is inferior) for stability's sake so it is unlikely I can provide more debugging information as it is a production environment. We're also unlikely to upgrade the host for the same reasons, as there are other VMs on the system that would be impacted by the change. Hopefully others have seen this issue as well.
[toc] | [prev] | [next] | [standalone]
| From | Salvatore Bonaccorso <carnil@debian.org> |
|---|---|
| Date | 2025-03-22 14:50 +0100 |
| Message-ID | <Kt7oC-7U9M-25@gated-at.bofh.it> |
| In reply to | #84318 |
Hi, On Mon, Oct 21, 2024 at 05:46:21PM -0700, Nye Liu wrote: > On Sat, 19 Oct 2024 16:13:04 +0200 Bastian Blank <waldi@debian.org> wrote: > > This is a Debian 11? What about upgrading to the latest stable? > > Yes this is Debian 11 > > > What are the qemu command line options? > > Will dig around, but we have since disable QLX in favor of virtio (though it > is inferior) for stability's sake so it is unlikely I can provide more > debugging information as it is a production environment. > > We're also unlikely to upgrade the host for the same reasons, as there are > other VMs on the system that would be impacted by the change. > > Hopefully others have seen this issue as well. Should we close this bug accordinly? Regards, Salvatore
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| From | "Debian Bug Tracking System" <owner@bugs.debian.org> |
|---|---|
| Date | 2025-03-27 23:30 +0100 |
| Subject | Bug#1085177: marked as done (linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait) |
| Message-ID | <Kv3Tz-9brC-11@gated-at.bofh.it> |
| In reply to | #84280 |
[Multipart message — attachments visible in raw view] — view raw
Your message dated Thu, 27 Mar 2025 23:18:34 +0100 with message-id <Z-XOuvS4Y-HKqB9_@eldamar.lan> and subject line Re: Bug#1085177: linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait has caused the Debian Bug report #1085177, regarding linux-image-6.11.2-amd64: kworker/0:0+events spin causes high (>1) cpu load due to qxl_fence_wait to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact owner@bugs.debian.org immediately.) -- 1085177: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1085177 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
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