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Bug#1054514: linux-image-6.1.0-13-amd64: Debian VM with qxl graphics freezes frequently
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Timo Lindfors
Oct 24, 2023, 4:20:04 PM10/24/23
to
Package: src:linux
Version: 6.1.55-1
Severity: normal
Steps to reproduce:
1) Install Debian 12 as a virtual machine using virt-manager, choose qxl
graphics card. You only need basic installation without wayland or X.
2) Login from the console and save thë following to reproduce.bash:
#!/bin/bash
chvt 3
for j in $(seq 80); do
echo "$(date) starting round $j"
if [ "$(journalctl --boot | grep "failed to allocate VRAM BO")" != ""
]; then
echo "bug was reproduced after $j tries"
exit 1
fi
for i in $(seq 100); do
dmesg > /dev/tty3
done
done
echo "bug could not be reproduced"
exit 0
3) Run chmod a+x reproduce.bash
4) Run ./reproduce.bash and wait for up to 20 minutes.
Expected results:
4) The system prints a steady flow of text without kernel error messages
Actual messages:
4) At some point the text stops flowing and the script prints "bug was
reproduced". If you run "journalctl --boot" you see
kernel: [TTM] Buffer eviction failed
kernel: qxl 0000:00:02.0: object_init failed for (3149824, 0x00000001)
kernel: [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM
BO
More info:
1) The bug does not occur if I downgrade the kernel to
linux-image-5.10.0-26-amd64_5.10.197-1_amd64.deb from Debian 11.
2) I used the following test_linux.bash to bisect this issue against
upstream source:
#!/bin/bash
set -x
gitversion="$(git describe HEAD|sed 's@^v@@')"
git checkout drivers/gpu/drm/ttm/ttm_bo.c include/drm/ttm/ttm_bo_api.h
git show bec771b5e0901f4b0bc861bcb58056de5151ae3a | patch -p1
# Build
cp ~/kernel.config .config
# cp /boot/config-$(uname -r) .config
# scripts/config --enable LOCALVERSION_AUTO
# scripts/config --disable DEBUG_INFO
# scripts/config --disable SYSTEM_TRUSTED_KEYRING
# scripts/config --set-str SYSTEM_TRUSTED_KEYS ''
# scripts/config --disable STACKPROTECTOR_STRONG
make olddefconfig
# make localmodconfig
make -j$(nproc --all) bindeb-pkg
rc="$?"
if [ "$rc" != "0" ]; then
exit 125
fi
git checkout drivers/gpu/drm/ttm/ttm_bo.c include/drm/ttm/ttm_bo_api.h
package="$(ls --sort=time ../linux-image-*_amd64.deb|head -n1)"
version=$(echo $package | cut -d_ -f1|cut -d- -f3-)
if [ "$gitversion" != "$version" ]; then
echo "Build produced version $gitversion but got $version, ignoring"
#exit 255
fi
# Deploy
scp $package target:a.deb
ssh target sudo apt install ./a.deb
ssh target rm -f a.deb
ssh target ./grub_set_default_version.bash $version
ssh target sudo shutdown -r now
sleep 40
detected_version=$(ssh target uname -r)
if [ "$detected_version" != "$version" ]; then
echo "Booted to $detected_version but expected $version"
exit 255
fi
# Test
exec ssh target sudo ./reproduce.bash
Bisect printed the following log:
git bisect start
# bad: [ed29c2691188cf7ea2a46d40b891836c2bd1a4f5] drm/i915: Fix userptr so we do not have to worry about obj->mm.lock, v7.
git bisect bad ed29c2691188cf7ea2a46d40b891836c2bd1a4f5
# bad: [762949bb1da78941b25e63f7e952af037eee15a9] drm: fix drm_mode_create_blob comment
git bisect bad 762949bb1da78941b25e63f7e952af037eee15a9
# bad: [e40f97ef12772f8eb04b6a155baa1e0e2e8f3ecc] drm/gma500: Drop DRM_GMA600 config option
git bisect bad e40f97ef12772f8eb04b6a155baa1e0e2e8f3ecc
# bad: [5a838e5d5825c85556011478abde708251cc0776] drm/qxl: simplify qxl_fence_wait
git bisect bad 5a838e5d5825c85556011478abde708251cc0776
# bad: [d2b6f8a179194de0ffc4886ffc2c4358d86047b8] Merge tag 'xfs-5.13-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
git bisect bad d2b6f8a179194de0ffc4886ffc2c4358d86047b8
# bad: [68a32ba14177d4a21c4a9a941cf1d7aea86d436f] Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm
git bisect bad 68a32ba14177d4a21c4a9a941cf1d7aea86d436f
# bad: [0698b13403788a646073fcd9b2294f2dce0ce429] drm/amdgpu: skip PP_MP1_STATE_UNLOAD on aldebaran
git bisect bad 0698b13403788a646073fcd9b2294f2dce0ce429
# bad: [e1a5e6a8c48bf99ea374fb3e535661cfe226bca4] drm/doc: Add RFC section
git bisect bad e1a5e6a8c48bf99ea374fb3e535661cfe226bca4
# bad: [ed29c2691188cf7ea2a46d40b891836c2bd1a4f5] drm/i915: Fix userptr so we do not have to worry about obj->mm.lock, v7.
git bisect bad ed29c2691188cf7ea2a46d40b891836c2bd1a4f5
# bad: [2c8ab3339e398bbbcb0980933e266b93bedaae52] drm/i915: Pin timeline map after first timeline pin, v4.
git bisect bad 2c8ab3339e398bbbcb0980933e266b93bedaae52
# bad: [2eb8e1a69d9f8cc9c0a75e327f854957224ba421] drm/i915/gem: Drop relocation support on all new hardware (v6)
git bisect bad 2eb8e1a69d9f8cc9c0a75e327f854957224ba421
# bad: [b5b6f6a610127b17f20c0ca03dd27beee4ddc2b2] drm/i915/gem: Drop legacy execbuffer support (v2)
git bisect bad b5b6f6a610127b17f20c0ca03dd27beee4ddc2b2
# bad: [06debd6e1b28029e6e77c41e59a162868f377897] Merge tag 'drm-intel-next-2021-03-16' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
git bisect bad 06debd6e1b28029e6e77c41e59a162868f377897
# good: [e19eede54240d64b4baf9b0df4dfb8191f7ae48b] Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
git bisect good e19eede54240d64b4baf9b0df4dfb8191f7ae48b
# good: [1e28eed17697bcf343c6743f0028cc3b5dd88bf0] Linux 5.12-rc3
git bisect good 1e28eed17697bcf343c6743f0028cc3b5dd88bf0
# bad: [6af70eb3b40edfc8bdf2373cdc2bcf9d5a20c8c7] drm/atmel-hlcdc: Rename custom plane state variable
git bisect bad 6af70eb3b40edfc8bdf2373cdc2bcf9d5a20c8c7
# good: [4ca77c513537700d3fae69030879f781dde1904c] drm/qxl: release shadow on shutdown
git bisect good 4ca77c513537700d3fae69030879f781dde1904c
# bad: [4a11bd1e88af130f50a72e0f54391c1c7d268e03] drm/ast: Add constants for VGACRCB register bits
git bisect bad 4a11bd1e88af130f50a72e0f54391c1c7d268e03
# bad: [5c209d8056b9763ce544ecd7dadb3782cdaf96ed] drm/gma500: psb_spank() doesn't need it's own file
git bisect bad 5c209d8056b9763ce544ecd7dadb3782cdaf96ed
# bad: [db0c6bd2c0c0dada8927cd46a7c34c316a3a6c04] drm/gem: Export drm_gem_vmap() and drm_gem_vunmap()
git bisect bad db0c6bd2c0c0dada8927cd46a7c34c316a3a6c04
# bad: [f4a84e165e6d58606097dd07b5b78767a94b870c] drm/qxl: allocate dumb buffers in ram
git bisect bad f4a84e165e6d58606097dd07b5b78767a94b870c
# good: [a7709b9b89a67f3ead2d188b1d0c261059b1f291] drm/qxl: handle shadow in primary destroy
git bisect good a7709b9b89a67f3ead2d188b1d0c261059b1f291
# bad: [5a838e5d5825c85556011478abde708251cc0776] drm/qxl: simplify qxl_fence_wait
git bisect bad 5a838e5d5825c85556011478abde708251cc0776
# good: [5f6c871fe919999774e8535ea611a6f84ee43ee4] drm/qxl: properly free qxl releases
git bisect good 5f6c871fe919999774e8535ea611a6f84ee43ee4
# first bad commit: [5a838e5d5825c85556011478abde708251cc0776] drm/qxl: simplify qxl_fence_wait
I took a look at
commit 5a838e5d5825c85556011478abde708251cc0776 (refs/bisect/bad)
Author: Gerd Hoffmann <kra...@redhat.com>
Date: Thu Feb 4 15:57:10 2021 +0100
drm/qxl: simplify qxl_fence_wait
Now that we have the new release_event wait queue we can just
use that in qxl_fence_wait() and simplify the code a lot.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
Acked-by: Thomas Zimmermann <tzimm...@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20210204145712.1...@redhat.com
and noticed that the bug does not occur if I boot 6.1 kernel with this
patch reverted (see attached file).
-- Package-specific info:
** Version:
Linux version 6.1.0-13-amd64 (debian...@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.55-1 (2023-09-29)
** Command line:
BOOT_IMAGE=/boot/vmlinuz-6.1.0-13-amd64 root=UUID=5a9690d2-935b-4d7e-b518-24de0182379b ro quiet
** Not tainted
** Kernel log:
Unable to read kernel log; any relevant messages should be attached
** Model information
sys_vendor: QEMU
product_name: Standard PC (i440FX + PIIX, 1996)
product_version: pc-i440fx-2.8
chassis_vendor: QEMU
chassis_version: pc-i440fx-2.8
bios_vendor: SeaBIOS
bios_version: 1.16.2-debian-1.16.2-1
** Loaded modules:
mptcp_diag
tcp_diag
udp_diag
raw_diag
inet_diag
unix_diag
af_packet_diag
netlink_diag
uinput
snd_seq_dummy
snd_hrtimer
snd_seq
snd_seq_device
rfkill
nvme_fabrics
nvme_core
ip6t_REJECT
nf_reject_ipv6
xt_hl
ip6_tables
ip6t_rt
ipt_REJECT
nf_reject_ipv4
xt_LOG
nf_log_syslog
nft_limit
xt_limit
xt_addrtype
xt_tcpudp
xt_conntrack
nf_conntrack
nf_defrag_ipv6
nf_defrag_ipv4
nft_compat
nf_tables
nfnetlink
binfmt_misc
snd_hda_codec_generic
intel_rapl_msr
ledtrig_audio
intel_rapl_common
snd_hda_intel
kvm_intel
snd_intel_dspcfg
snd_intel_sdw_acpi
snd_hda_codec
snd_hda_core
kvm
snd_hwdep
irqbypass
snd_pcm
rapl
snd_timer
joydev
virtio_console
virtio_balloon
pcspkr
snd
soundcore
sg
evdev
serio_raw
vmwgfx
msr
parport_pc
ppdev
lp
parport
loop
fuse
dm_mod
configfs
efi_pstore
qemu_fw_cfg
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
btrfs
blake2b_generic
zstd_compress
raid10
raid456
async_raid6_recov
async_memcpy
async_pq
async_xor
async_tx
xor
raid6_pq
libcrc32c
crc32c_generic
raid1
raid0
multipath
linear
md_mod
hid_generic
usbhid
hid
crc32_pclmul
crc32c_intel
sd_mod
t10_pi
crc64_rocksoft_generic
crc64_rocksoft
crc_t10dif
crct10dif_generic
crct10dif_pclmul
crc64
crct10dif_common
ghash_clmulni_intel
qxl
virtio_net
drm_ttm_helper
sha512_ssse3
virtio_scsi
net_failover
ttm
failover
ata_generic
sha512_generic
drm_kms_helper
ahci
libahci
ata_piix
ehci_pci
uhci_hcd
ehci_hcd
aesni_intel
crypto_simd
libata
drm
usbcore
virtio_pci
scsi_mod
virtio_pci_legacy_dev
psmouse
virtio_pci_modern_dev
virtio
cryptd
virtio_ring
usb_common
floppy
scsi_common
i2c_piix4
button
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma]
[8086:1237] (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-
00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA
[Natoma/Triton II] [8086:7000]
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=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE
[Natoma/Triton II] [8086:7010] (prog-if 80 [ISA Compatibility mode-only
controller, supports bus mastering])
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=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374
Region 4: I/O ports at c160 [size=16]
Kernel driver in use: ata_piix
Kernel modules: ata_piix, ata_generic
00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI
[8086:7113] (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=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 9
Kernel driver in use: piix4_smbus
Kernel modules: i2c_piix4
00:02.0 VGA compatible controller [0300]: Red Hat, Inc. QXL paravirtual
graphic card [1b36:0100] (rev 04) (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 11
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 fc054000 (32-bit, non-prefetchable) [size=8K]
Region 3: I/O ports at c080 [size=32]
Expansion ROM at 000c0000 [disabled] [size=128K]
Kernel driver in use: qxl
Kernel modules: qxl
00:03.0 Ethernet controller [0200]: Red Hat, Inc. Virtio network device
[1af4:1000]
Subsystem: Red Hat, Inc. Virtio network device [1af4:0001]
Physical Slot: 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 11
Region 0: I/O ports at c0a0 [size=32]
Region 1: Memory at fc056000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at febf0000 (64-bit, prefetchable) [size=16K]
Expansion ROM at fc000000 [disabled] [size=256K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:04.0 Audio device [0403]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) High Definition Audio Controller [8086:2668] (rev 01)
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
Physical Slot: 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 34
Region 0: Memory at fc050000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:05.0 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #1 [8086:2934] (rev 03) (prog-if 00 [UHCI])
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 10
Region 4: I/O ports at c0c0 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci_hcd
00:05.1 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #2 [8086:2935] (rev 03) (prog-if 00 [UHCI])
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 B routed to IRQ 11
Region 4: I/O ports at c0e0 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci_hcd
00:05.2 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #3 [8086:2936] (rev 03) (prog-if 00 [UHCI])
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 C routed to IRQ 11
Region 4: I/O ports at c100 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci_hcd
00:05.7 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2
EHCI Controller #1 [8086:293a] (rev 03) (prog-if 20 [EHCI])
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, Cache Line Size: 64 bytes
Interrupt: pin D routed to IRQ 10
Region 0: Memory at fc057000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci
00:06.0 SCSI storage controller [0100]: Red Hat, Inc. Virtio SCSI
[1af4:1004]
Subsystem: Red Hat, Inc. Virtio SCSI [1af4:0008]
Physical Slot: 6
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: I/O ports at c000 [size=64]
Region 1: Memory at fc058000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at febf4000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:07.0 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]
Physical Slot: 7
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 24
Region 4: I/O ports at c120 [size=32]
Region 5: Memory at fc059000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:08.0 Communication controller [0780]: Red Hat, Inc. Virtio console
[1af4:1003]
Subsystem: Red Hat, Inc. Virtio console [1af4:0003]
Physical Slot: 8
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 10
Region 0: I/O ports at c040 [size=64]
Region 1: Memory at fc05a000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at febf8000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:09.0 Unclassified device [00ff]: Red Hat, Inc. Virtio memory balloon
[1af4:1002]
Subsystem: Red Hat, Inc. Virtio memory balloon [1af4:0005]
Physical Slot: 9
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 10
Region 0: I/O ports at c140 [size=32]
Region 4: Memory at febfc000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
** USB devices:
Bus 002 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU Tablet
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-- System Information:
Debian Release: 12.2
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.1.0-13-amd64 (SMP w/32 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages linux-image-6.1.0-13-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.142
ii kmod 30+20221128-1
ii linux-base 4.9
Versions of packages linux-image-6.1.0-13-amd64 recommends:
ii apparmor 3.0.8-3
ii firmware-linux-free 20200122-1
Versions of packages linux-image-6.1.0-13-amd64 suggests:
pn debian-kernel-handbook <none>
ii extlinux 3:6.04~git20190206.bf6db5b4+dfsg1-3+b1
ii grub-pc 2.06-13+deb12u1
pn linux-doc-6.1 <none>
Versions of packages linux-image-6.1.0-13-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 20230210-5
pn firmware-libertas <none>
pn firmware-linux-nonfree <none>
ii firmware-misc-nonfree 20230210-5
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
Version: 6.1.55-1
Severity: normal
Steps to reproduce:
1) Install Debian 12 as a virtual machine using virt-manager, choose qxl
graphics card. You only need basic installation without wayland or X.
2) Login from the console and save thë following to reproduce.bash:
#!/bin/bash
chvt 3
for j in $(seq 80); do
echo "$(date) starting round $j"
if [ "$(journalctl --boot | grep "failed to allocate VRAM BO")" != ""
]; then
echo "bug was reproduced after $j tries"
exit 1
fi
for i in $(seq 100); do
dmesg > /dev/tty3
done
done
echo "bug could not be reproduced"
exit 0
3) Run chmod a+x reproduce.bash
4) Run ./reproduce.bash and wait for up to 20 minutes.
Expected results:
4) The system prints a steady flow of text without kernel error messages
Actual messages:
4) At some point the text stops flowing and the script prints "bug was
reproduced". If you run "journalctl --boot" you see
kernel: [TTM] Buffer eviction failed
kernel: qxl 0000:00:02.0: object_init failed for (3149824, 0x00000001)
kernel: [drm:qxl_alloc_bo_reserved [qxl]] *ERROR* failed to allocate VRAM
BO
More info:
1) The bug does not occur if I downgrade the kernel to
linux-image-5.10.0-26-amd64_5.10.197-1_amd64.deb from Debian 11.
2) I used the following test_linux.bash to bisect this issue against
upstream source:
#!/bin/bash
set -x
gitversion="$(git describe HEAD|sed 's@^v@@')"
git checkout drivers/gpu/drm/ttm/ttm_bo.c include/drm/ttm/ttm_bo_api.h
git show bec771b5e0901f4b0bc861bcb58056de5151ae3a | patch -p1
# Build
cp ~/kernel.config .config
# cp /boot/config-$(uname -r) .config
# scripts/config --enable LOCALVERSION_AUTO
# scripts/config --disable DEBUG_INFO
# scripts/config --disable SYSTEM_TRUSTED_KEYRING
# scripts/config --set-str SYSTEM_TRUSTED_KEYS ''
# scripts/config --disable STACKPROTECTOR_STRONG
make olddefconfig
# make localmodconfig
make -j$(nproc --all) bindeb-pkg
rc="$?"
if [ "$rc" != "0" ]; then
exit 125
fi
git checkout drivers/gpu/drm/ttm/ttm_bo.c include/drm/ttm/ttm_bo_api.h
package="$(ls --sort=time ../linux-image-*_amd64.deb|head -n1)"
version=$(echo $package | cut -d_ -f1|cut -d- -f3-)
if [ "$gitversion" != "$version" ]; then
echo "Build produced version $gitversion but got $version, ignoring"
#exit 255
fi
# Deploy
scp $package target:a.deb
ssh target sudo apt install ./a.deb
ssh target rm -f a.deb
ssh target ./grub_set_default_version.bash $version
ssh target sudo shutdown -r now
sleep 40
detected_version=$(ssh target uname -r)
if [ "$detected_version" != "$version" ]; then
echo "Booted to $detected_version but expected $version"
exit 255
fi
# Test
exec ssh target sudo ./reproduce.bash
Bisect printed the following log:
git bisect start
# bad: [ed29c2691188cf7ea2a46d40b891836c2bd1a4f5] drm/i915: Fix userptr so we do not have to worry about obj->mm.lock, v7.
git bisect bad ed29c2691188cf7ea2a46d40b891836c2bd1a4f5
# bad: [762949bb1da78941b25e63f7e952af037eee15a9] drm: fix drm_mode_create_blob comment
git bisect bad 762949bb1da78941b25e63f7e952af037eee15a9
# bad: [e40f97ef12772f8eb04b6a155baa1e0e2e8f3ecc] drm/gma500: Drop DRM_GMA600 config option
git bisect bad e40f97ef12772f8eb04b6a155baa1e0e2e8f3ecc
# bad: [5a838e5d5825c85556011478abde708251cc0776] drm/qxl: simplify qxl_fence_wait
git bisect bad 5a838e5d5825c85556011478abde708251cc0776
# bad: [d2b6f8a179194de0ffc4886ffc2c4358d86047b8] Merge tag 'xfs-5.13-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
git bisect bad d2b6f8a179194de0ffc4886ffc2c4358d86047b8
# bad: [68a32ba14177d4a21c4a9a941cf1d7aea86d436f] Merge tag 'drm-next-2021-04-28' of git://anongit.freedesktop.org/drm/drm
git bisect bad 68a32ba14177d4a21c4a9a941cf1d7aea86d436f
# bad: [0698b13403788a646073fcd9b2294f2dce0ce429] drm/amdgpu: skip PP_MP1_STATE_UNLOAD on aldebaran
git bisect bad 0698b13403788a646073fcd9b2294f2dce0ce429
# bad: [e1a5e6a8c48bf99ea374fb3e535661cfe226bca4] drm/doc: Add RFC section
git bisect bad e1a5e6a8c48bf99ea374fb3e535661cfe226bca4
# bad: [ed29c2691188cf7ea2a46d40b891836c2bd1a4f5] drm/i915: Fix userptr so we do not have to worry about obj->mm.lock, v7.
git bisect bad ed29c2691188cf7ea2a46d40b891836c2bd1a4f5
# bad: [2c8ab3339e398bbbcb0980933e266b93bedaae52] drm/i915: Pin timeline map after first timeline pin, v4.
git bisect bad 2c8ab3339e398bbbcb0980933e266b93bedaae52
# bad: [2eb8e1a69d9f8cc9c0a75e327f854957224ba421] drm/i915/gem: Drop relocation support on all new hardware (v6)
git bisect bad 2eb8e1a69d9f8cc9c0a75e327f854957224ba421
# bad: [b5b6f6a610127b17f20c0ca03dd27beee4ddc2b2] drm/i915/gem: Drop legacy execbuffer support (v2)
git bisect bad b5b6f6a610127b17f20c0ca03dd27beee4ddc2b2
# bad: [06debd6e1b28029e6e77c41e59a162868f377897] Merge tag 'drm-intel-next-2021-03-16' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
git bisect bad 06debd6e1b28029e6e77c41e59a162868f377897
# good: [e19eede54240d64b4baf9b0df4dfb8191f7ae48b] Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
git bisect good e19eede54240d64b4baf9b0df4dfb8191f7ae48b
# good: [1e28eed17697bcf343c6743f0028cc3b5dd88bf0] Linux 5.12-rc3
git bisect good 1e28eed17697bcf343c6743f0028cc3b5dd88bf0
# bad: [6af70eb3b40edfc8bdf2373cdc2bcf9d5a20c8c7] drm/atmel-hlcdc: Rename custom plane state variable
git bisect bad 6af70eb3b40edfc8bdf2373cdc2bcf9d5a20c8c7
# good: [4ca77c513537700d3fae69030879f781dde1904c] drm/qxl: release shadow on shutdown
git bisect good 4ca77c513537700d3fae69030879f781dde1904c
# bad: [4a11bd1e88af130f50a72e0f54391c1c7d268e03] drm/ast: Add constants for VGACRCB register bits
git bisect bad 4a11bd1e88af130f50a72e0f54391c1c7d268e03
# bad: [5c209d8056b9763ce544ecd7dadb3782cdaf96ed] drm/gma500: psb_spank() doesn't need it's own file
git bisect bad 5c209d8056b9763ce544ecd7dadb3782cdaf96ed
# bad: [db0c6bd2c0c0dada8927cd46a7c34c316a3a6c04] drm/gem: Export drm_gem_vmap() and drm_gem_vunmap()
git bisect bad db0c6bd2c0c0dada8927cd46a7c34c316a3a6c04
# bad: [f4a84e165e6d58606097dd07b5b78767a94b870c] drm/qxl: allocate dumb buffers in ram
git bisect bad f4a84e165e6d58606097dd07b5b78767a94b870c
# good: [a7709b9b89a67f3ead2d188b1d0c261059b1f291] drm/qxl: handle shadow in primary destroy
git bisect good a7709b9b89a67f3ead2d188b1d0c261059b1f291
# bad: [5a838e5d5825c85556011478abde708251cc0776] drm/qxl: simplify qxl_fence_wait
git bisect bad 5a838e5d5825c85556011478abde708251cc0776
# good: [5f6c871fe919999774e8535ea611a6f84ee43ee4] drm/qxl: properly free qxl releases
git bisect good 5f6c871fe919999774e8535ea611a6f84ee43ee4
# first bad commit: [5a838e5d5825c85556011478abde708251cc0776] drm/qxl: simplify qxl_fence_wait
I took a look at
commit 5a838e5d5825c85556011478abde708251cc0776 (refs/bisect/bad)
Author: Gerd Hoffmann <kra...@redhat.com>
Date: Thu Feb 4 15:57:10 2021 +0100
drm/qxl: simplify qxl_fence_wait
Now that we have the new release_event wait queue we can just
use that in qxl_fence_wait() and simplify the code a lot.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
Acked-by: Thomas Zimmermann <tzimm...@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20210204145712.1...@redhat.com
and noticed that the bug does not occur if I boot 6.1 kernel with this
patch reverted (see attached file).
-- Package-specific info:
** Version:
Linux version 6.1.0-13-amd64 (debian...@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.55-1 (2023-09-29)
** Command line:
BOOT_IMAGE=/boot/vmlinuz-6.1.0-13-amd64 root=UUID=5a9690d2-935b-4d7e-b518-24de0182379b ro quiet
** Not tainted
** Kernel log:
Unable to read kernel log; any relevant messages should be attached
** Model information
sys_vendor: QEMU
product_name: Standard PC (i440FX + PIIX, 1996)
product_version: pc-i440fx-2.8
chassis_vendor: QEMU
chassis_version: pc-i440fx-2.8
bios_vendor: SeaBIOS
bios_version: 1.16.2-debian-1.16.2-1
** Loaded modules:
mptcp_diag
tcp_diag
udp_diag
raw_diag
inet_diag
unix_diag
af_packet_diag
netlink_diag
uinput
snd_seq_dummy
snd_hrtimer
snd_seq
snd_seq_device
rfkill
nvme_fabrics
nvme_core
ip6t_REJECT
nf_reject_ipv6
xt_hl
ip6_tables
ip6t_rt
ipt_REJECT
nf_reject_ipv4
xt_LOG
nf_log_syslog
nft_limit
xt_limit
xt_addrtype
xt_tcpudp
xt_conntrack
nf_conntrack
nf_defrag_ipv6
nf_defrag_ipv4
nft_compat
nf_tables
nfnetlink
binfmt_misc
snd_hda_codec_generic
intel_rapl_msr
ledtrig_audio
intel_rapl_common
snd_hda_intel
kvm_intel
snd_intel_dspcfg
snd_intel_sdw_acpi
snd_hda_codec
snd_hda_core
kvm
snd_hwdep
irqbypass
snd_pcm
rapl
snd_timer
joydev
virtio_console
virtio_balloon
pcspkr
snd
soundcore
sg
evdev
serio_raw
vmwgfx
msr
parport_pc
ppdev
lp
parport
loop
fuse
dm_mod
configfs
efi_pstore
qemu_fw_cfg
ip_tables
x_tables
autofs4
ext4
crc16
mbcache
jbd2
btrfs
blake2b_generic
zstd_compress
raid10
raid456
async_raid6_recov
async_memcpy
async_pq
async_xor
async_tx
xor
raid6_pq
libcrc32c
crc32c_generic
raid1
raid0
multipath
linear
md_mod
hid_generic
usbhid
hid
crc32_pclmul
crc32c_intel
sd_mod
t10_pi
crc64_rocksoft_generic
crc64_rocksoft
crc_t10dif
crct10dif_generic
crct10dif_pclmul
crc64
crct10dif_common
ghash_clmulni_intel
qxl
virtio_net
drm_ttm_helper
sha512_ssse3
virtio_scsi
net_failover
ttm
failover
ata_generic
sha512_generic
drm_kms_helper
ahci
libahci
ata_piix
ehci_pci
uhci_hcd
ehci_hcd
aesni_intel
crypto_simd
libata
drm
usbcore
virtio_pci
scsi_mod
virtio_pci_legacy_dev
psmouse
virtio_pci_modern_dev
virtio
cryptd
virtio_ring
usb_common
floppy
scsi_common
i2c_piix4
button
** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma]
[8086:1237] (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-
00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA
[Natoma/Triton II] [8086:7000]
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=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE
[Natoma/Triton II] [8086:7010] (prog-if 80 [ISA Compatibility mode-only
controller, supports bus mastering])
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=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374
Region 4: I/O ports at c160 [size=16]
Kernel driver in use: ata_piix
Kernel modules: ata_piix, ata_generic
00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI
[8086:7113] (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=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 9
Kernel driver in use: piix4_smbus
Kernel modules: i2c_piix4
00:02.0 VGA compatible controller [0300]: Red Hat, Inc. QXL paravirtual
graphic card [1b36:0100] (rev 04) (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 11
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 fc054000 (32-bit, non-prefetchable) [size=8K]
Region 3: I/O ports at c080 [size=32]
Expansion ROM at 000c0000 [disabled] [size=128K]
Kernel driver in use: qxl
Kernel modules: qxl
00:03.0 Ethernet controller [0200]: Red Hat, Inc. Virtio network device
[1af4:1000]
Subsystem: Red Hat, Inc. Virtio network device [1af4:0001]
Physical Slot: 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 11
Region 0: I/O ports at c0a0 [size=32]
Region 1: Memory at fc056000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at febf0000 (64-bit, prefetchable) [size=16K]
Expansion ROM at fc000000 [disabled] [size=256K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:04.0 Audio device [0403]: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) High Definition Audio Controller [8086:2668] (rev 01)
Subsystem: Red Hat, Inc. QEMU Virtual Machine [1af4:1100]
Physical Slot: 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 34
Region 0: Memory at fc050000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:05.0 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #1 [8086:2934] (rev 03) (prog-if 00 [UHCI])
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 10
Region 4: I/O ports at c0c0 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci_hcd
00:05.1 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #2 [8086:2935] (rev 03) (prog-if 00 [UHCI])
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 B routed to IRQ 11
Region 4: I/O ports at c0e0 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci_hcd
00:05.2 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB
UHCI Controller #3 [8086:2936] (rev 03) (prog-if 00 [UHCI])
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 C routed to IRQ 11
Region 4: I/O ports at c100 [size=32]
Kernel driver in use: uhci_hcd
Kernel modules: uhci_hcd
00:05.7 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB2
EHCI Controller #1 [8086:293a] (rev 03) (prog-if 20 [EHCI])
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, Cache Line Size: 64 bytes
Interrupt: pin D routed to IRQ 10
Region 0: Memory at fc057000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci
00:06.0 SCSI storage controller [0100]: Red Hat, Inc. Virtio SCSI
[1af4:1004]
Subsystem: Red Hat, Inc. Virtio SCSI [1af4:0008]
Physical Slot: 6
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: I/O ports at c000 [size=64]
Region 1: Memory at fc058000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at febf4000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:07.0 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]
Physical Slot: 7
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 24
Region 4: I/O ports at c120 [size=32]
Region 5: Memory at fc059000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: ahci
Kernel modules: ahci
00:08.0 Communication controller [0780]: Red Hat, Inc. Virtio console
[1af4:1003]
Subsystem: Red Hat, Inc. Virtio console [1af4:0003]
Physical Slot: 8
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 10
Region 0: I/O ports at c040 [size=64]
Region 1: Memory at fc05a000 (32-bit, non-prefetchable) [size=4K]
Region 4: Memory at febf8000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
00:09.0 Unclassified device [00ff]: Red Hat, Inc. Virtio memory balloon
[1af4:1002]
Subsystem: Red Hat, Inc. Virtio memory balloon [1af4:0005]
Physical Slot: 9
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 10
Region 0: I/O ports at c140 [size=32]
Region 4: Memory at febfc000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: virtio-pci
Kernel modules: virtio_pci
** USB devices:
Bus 002 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU Tablet
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-- System Information:
Debian Release: 12.2
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500,
'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.1.0-13-amd64 (SMP w/32 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages linux-image-6.1.0-13-amd64 depends on:
ii initramfs-tools [linux-initramfs-tool] 0.142
ii kmod 30+20221128-1
ii linux-base 4.9
Versions of packages linux-image-6.1.0-13-amd64 recommends:
ii apparmor 3.0.8-3
ii firmware-linux-free 20200122-1
Versions of packages linux-image-6.1.0-13-amd64 suggests:
pn debian-kernel-handbook <none>
ii extlinux 3:6.04~git20190206.bf6db5b4+dfsg1-3+b1
ii grub-pc 2.06-13+deb12u1
pn linux-doc-6.1 <none>
Versions of packages linux-image-6.1.0-13-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 20230210-5
pn firmware-libertas <none>
pn firmware-linux-nonfree <none>
ii firmware-misc-nonfree 20230210-5
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
Salvatore Bonaccorso
Oct 24, 2023, 5:20:05 PM10/24/23
to
Hi Timo,
Thanks for the excelent constructed report! I think it's best to
forward this directly to upstream including the people for the
bisected commit to get some idea.
Can you reproduce the issue with 6.5.8-1 in unstable as well?
If not, are you able to isolate an upstream fix which should be
backported to the 6.1.y series as well?
Regards,
Salvatore
forward this directly to upstream including the people for the
bisected commit to get some idea.
Can you reproduce the issue with 6.5.8-1 in unstable as well?
If not, are you able to isolate an upstream fix which should be
backported to the 6.1.y series as well?
Regards,
Salvatore
Timo Lindfors
Oct 24, 2023, 5:50:05 PM10/24/23
to
Hi,
On Tue, 24 Oct 2023, Salvatore Bonaccorso wrote:
> Thanks for the excelent constructed report! I think it's best to
> forward this directly to upstream including the people for the
> bisected commit to get some idea.
Thanks for the quick reply!
> Can you reproduce the issue with 6.5.8-1 in unstable as well?
Unfortunately yes:
ansible@target:~$ uname -r
6.5.0-3-amd64
ansible@target:~$ time sudo ./reproduce.bash
Wed 25 Oct 2023 12:27:00 AM EEST starting round 1
Wed 25 Oct 2023 12:27:24 AM EEST starting round 2
Wed 25 Oct 2023 12:27:48 AM EEST starting round 3
bug was reproduced after 3 tries
real 0m48.838s
user 0m1.115s
sys 0m45.530s
I also tested upstream tag v6.6-rc6:
...
+ detected_version=6.6.0-rc6
+ '[' 6.6.0-rc6 '!=' 6.6.0-rc6 ']'
+ exec ssh target sudo ./reproduce.bash
Wed 25 Oct 2023 12:37:16 AM EEST starting round 1
Wed 25 Oct 2023 12:37:42 AM EEST starting round 2
Wed 25 Oct 2023 12:38:10 AM EEST starting round 3
Wed 25 Oct 2023 12:38:36 AM EEST starting round 4
Wed 25 Oct 2023 12:39:01 AM EEST starting round 5
Wed 25 Oct 2023 12:39:27 AM EEST starting round 6
bug was reproduced after 6 tries
For completeness, here is also the grub_set_default_version.bash script
that I had to write to automate this (maybe these could be in debian
wiki?):
#!/bin/bash
set -x
version="$1"
idx=$(expr $(grep "menuentry " /boot/grub/grub.cfg | sed 1d |grep -n "'Debian GNU/Linux, with Linux $version'"|cut -d: -f1) - 1)
exec sudo grub-set-default "1>$idx"
-Timo
On Tue, 24 Oct 2023, Salvatore Bonaccorso wrote:
> Thanks for the excelent constructed report! I think it's best to
> forward this directly to upstream including the people for the
> bisected commit to get some idea.
> Can you reproduce the issue with 6.5.8-1 in unstable as well?
ansible@target:~$ uname -r
6.5.0-3-amd64
ansible@target:~$ time sudo ./reproduce.bash
Wed 25 Oct 2023 12:27:00 AM EEST starting round 1
Wed 25 Oct 2023 12:27:24 AM EEST starting round 2
Wed 25 Oct 2023 12:27:48 AM EEST starting round 3
bug was reproduced after 3 tries
real 0m48.838s
user 0m1.115s
sys 0m45.530s
I also tested upstream tag v6.6-rc6:
...
+ detected_version=6.6.0-rc6
+ '[' 6.6.0-rc6 '!=' 6.6.0-rc6 ']'
+ exec ssh target sudo ./reproduce.bash
Wed 25 Oct 2023 12:37:16 AM EEST starting round 1
Wed 25 Oct 2023 12:37:42 AM EEST starting round 2
Wed 25 Oct 2023 12:38:10 AM EEST starting round 3
Wed 25 Oct 2023 12:38:36 AM EEST starting round 4
Wed 25 Oct 2023 12:39:01 AM EEST starting round 5
Wed 25 Oct 2023 12:39:27 AM EEST starting round 6
bug was reproduced after 6 tries
For completeness, here is also the grub_set_default_version.bash script
that I had to write to automate this (maybe these could be in debian
wiki?):
#!/bin/bash
set -x
version="$1"
idx=$(expr $(grep "menuentry " /boot/grub/grub.cfg | sed 1d |grep -n "'Debian GNU/Linux, with Linux $version'"|cut -d: -f1) - 1)
exec sudo grub-set-default "1>$idx"
-Timo
Bagas Sanjaya
Oct 24, 2023, 8:10:06 PM10/24/23
to
#regzbot ^introduced: 5a838e5d5825c8
#regzbot title: simplifying qxl_fence_wait() makes VRAM BO allocation fail
#regzbot from: Timo Lindfors <timo.l...@iki.fi>
--
An old man doll... just what I always wanted! - Clara
Linux regression tracking (Thorsten Leemhuis)
Dec 6, 2023, 5:51:35 AM12/6/23
to
Hi, Thorsten here, the Linux kernel's regression tracker. Top-posting
for once, to make this easily accessible to everyone.
Gerd, it seems this regression[1] fell through the cracks. Could you
please take a look? Or is there a good reason why this can't be
addressed? Or was it dealt with and I just missed it?
[1] apparently caused by 5a838e5d5825c8 ("drm/qxl: simplify
qxl_fence_wait") [v5.13-rc1] from Gerd; for details see
https://lore.kernel.org/regressions/ZTgydqRl...@eldamar.lan/
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.
#regzbot poke
for once, to make this easily accessible to everyone.
Gerd, it seems this regression[1] fell through the cracks. Could you
please take a look? Or is there a good reason why this can't be
addressed? Or was it dealt with and I just missed it?
[1] apparently caused by 5a838e5d5825c8 ("drm/qxl: simplify
qxl_fence_wait") [v5.13-rc1] from Gerd; for details see
https://lore.kernel.org/regressions/ZTgydqRl...@eldamar.lan/
Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.
#regzbot poke
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