From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: Filipe Manana <fdmanana@kernel.org>, dsterba@suse.cz
Cc: Qu Wenruo <wqu@suse.com>, Jeff Layton <jlayton@kernel.org>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Song Liu <song@kernel.org>, Heiko Carstens <hca@linux.ibm.com>,
Giulio Benetti <giulio.benetti@benettiengineering.com>,
linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: BUG in raid6_pq while running fstest btrfs/286
Date: Fri, 26 Jan 2024 09:34:36 +1030 [thread overview]
Message-ID: <e8651759-c364-424a-a2b7-ef7acd128974@gmx.com> (raw)
In-Reply-To: <CAL3q7H6bmy-a7hk216HgbbZZfS-t59bV2HZa18TJ=qHXMHJfRw@mail.gmail.com>
On 2024/1/25 20:43, Filipe Manana wrote:
> On Mon, Jun 19, 2023 at 7:36 PM David Sterba <dsterba@suse.cz> wrote:
>>
>> On Fri, Jun 16, 2023 at 09:57:47AM +0800, Qu Wenruo wrote:
>>> On 2023/6/16 01:58, Jeff Layton wrote:
>>>> I hit this today, while doing some testing with kdevops. Test btrfs/286
>>>> was running when it failed:
>>>>
>>>> [ 4759.230216] run fstests btrfs/286 at 2023-06-15 16:11:41
>>>> [ 4759.636322] BTRFS: device fsid 8d197804-9964-4b3f-bbea-3ef33869b564 devid 1 transid 484 /dev/loop16 scanned by mount (893879)
>>>> [ 4759.641190] BTRFS info (device loop16): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4759.644817] BTRFS info (device loop16): using free space tree
>>>> [ 4759.650706] BTRFS info (device loop16): enabling ssd optimizations
>>>> [ 4759.652720] BTRFS info (device loop16): auto enabling async discard
>>>> [ 4760.484561] BTRFS: device fsid 2a451aed-b7b6-4498-ba17-0e28a2e1a26b devid 1 transid 6 /dev/loop5 scanned by (udev-worker) (894101)
>>>> [ 4760.494221] BTRFS: device fsid 2a451aed-b7b6-4498-ba17-0e28a2e1a26b devid 2 transid 6 /dev/loop6 scanned by (udev-worker) (892207)
>>>> [ 4760.497373] BTRFS: device fsid 2a451aed-b7b6-4498-ba17-0e28a2e1a26b devid 3 transid 6 /dev/loop7 scanned by (udev-worker) (892535)
>>>> [ 4760.502687] BTRFS: device fsid 2a451aed-b7b6-4498-ba17-0e28a2e1a26b devid 4 transid 6 /dev/loop8 scanned by mkfs.btrfs (894095)
>>>> [ 4760.515672] BTRFS info (device loop5): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4760.519412] BTRFS info (device loop5): setting nodatasum
>>>> [ 4760.521777] BTRFS info (device loop5): using free space tree
>>>> [ 4760.527120] BTRFS info (device loop5): enabling ssd optimizations
>>>> [ 4760.528861] BTRFS info (device loop5): auto enabling async discard
>>>> [ 4760.532184] BTRFS info (device loop5): checking UUID tree
>>>> [ 4762.658754] BTRFS info (device loop5): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4762.662098] BTRFS info (device loop5): allowing degraded mounts
>>>> [ 4762.664749] BTRFS info (device loop5): setting nodatasum
>>>> [ 4762.667347] BTRFS info (device loop5): using free space tree
>>>> [ 4762.672306] BTRFS warning (device loop5): devid 2 uuid de8712ab-ca85-4414-93a7-213060d1831d is missing
>>>> [ 4762.676977] BTRFS info (device loop5): enabling ssd optimizations
>>>> [ 4762.679852] BTRFS info (device loop5): auto enabling async discard
>>>> [ 4763.355404] BTRFS info (device loop5): dev_replace from <missing disk> (devid 2) to /dev/loop9 started
>>>> [ 4763.595633] BTRFS info (device loop5): dev_replace from <missing disk> (devid 2) to /dev/loop9 finished
>>>> [ 4764.044660] 286 (893750): drop_caches: 3
>>>> [ 4765.384814] BTRFS: device fsid 7acce38c-63c2-4365-a338-e1f6c0fd484b devid 1 transid 6 /dev/loop5 scanned by (udev-worker) (894101)
>>>> [ 4765.392235] BTRFS: device fsid 7acce38c-63c2-4365-a338-e1f6c0fd484b devid 2 transid 6 /dev/loop6 scanned by (udev-worker) (892207)
>>>> [ 4765.404469] BTRFS: device fsid 7acce38c-63c2-4365-a338-e1f6c0fd484b devid 3 transid 6 /dev/loop7 scanned by (udev-worker) (894101)
>>>> [ 4765.412107] BTRFS: device fsid 7acce38c-63c2-4365-a338-e1f6c0fd484b devid 4 transid 6 /dev/loop8 scanned by mkfs.btrfs (894169)
>>>> [ 4765.429084] BTRFS info (device loop5): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4765.433332] BTRFS info (device loop5): setting nodatasum
>>>> [ 4765.435506] BTRFS info (device loop5): using free space tree
>>>> [ 4765.440808] BTRFS info (device loop5): enabling ssd optimizations
>>>> [ 4765.442402] BTRFS info (device loop5): auto enabling async discard
>>>> [ 4765.444752] BTRFS info (device loop5): checking UUID tree
>>>> [ 4767.634901] BTRFS info (device loop5): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4767.637985] BTRFS info (device loop5): allowing degraded mounts
>>>> [ 4767.640216] BTRFS info (device loop5): setting nodatasum
>>>> [ 4767.642221] BTRFS info (device loop5): using free space tree
>>>> [ 4767.646646] BTRFS warning (device loop5): devid 2 uuid 6240c286-893c-4d19-bbf5-f1d2fecc6b96 is missing
>>>> [ 4767.650311] BTRFS warning (device loop5): devid 2 uuid 6240c286-893c-4d19-bbf5-f1d2fecc6b96 is missing
>>>> [ 4767.655256] BTRFS info (device loop5): enabling ssd optimizations
>>>> [ 4767.658073] BTRFS info (device loop5): auto enabling async discard
>>>> [ 4768.343633] BTRFS info (device loop5): dev_replace from <missing disk> (devid 2) to /dev/loop9 started
>>>> [ 4768.608799] BTRFS info (device loop5): dev_replace from <missing disk> (devid 2) to /dev/loop9 finished
>>>> [ 4768.750345] 286 (893750): drop_caches: 3
>>>> [ 4769.993871] BTRFS: device fsid 965cdb50-095a-4fd9-bcda-2c17bd80c3ad devid 1 transid 6 /dev/loop5 scanned by (udev-worker) (894101)
>>>> [ 4770.002879] BTRFS: device fsid 965cdb50-095a-4fd9-bcda-2c17bd80c3ad devid 2 transid 6 /dev/loop6 scanned by (udev-worker) (892207)
>>>> [ 4770.015617] BTRFS: device fsid 965cdb50-095a-4fd9-bcda-2c17bd80c3ad devid 3 transid 6 /dev/loop7 scanned by (udev-worker) (894101)
>>>> [ 4770.021936] BTRFS: device fsid 965cdb50-095a-4fd9-bcda-2c17bd80c3ad devid 4 transid 6 /dev/loop8 scanned by mkfs.btrfs (894243)
>>>> [ 4770.041357] BTRFS info (device loop5): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4770.043426] BTRFS info (device loop5): setting nodatasum
>>>> [ 4770.045340] BTRFS info (device loop5): using free space tree
>>>> [ 4770.050615] BTRFS info (device loop5): enabling ssd optimizations
>>>> [ 4770.053473] BTRFS info (device loop5): auto enabling async discard
>>>> [ 4770.056311] BTRFS info (device loop5): checking UUID tree
>>>> [ 4772.692223] BTRFS info (device loop5): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4772.695043] BTRFS info (device loop5): allowing degraded mounts
>>>> [ 4772.697901] BTRFS info (device loop5): setting nodatasum
>>>> [ 4772.700355] BTRFS info (device loop5): using free space tree
>>>> [ 4772.704900] BTRFS warning (device loop5): devid 2 uuid 5fa35bdf-8f54-4652-ba28-7c302a265f8d is missing
>>>> [ 4772.708151] BTRFS warning (device loop5): devid 2 uuid 5fa35bdf-8f54-4652-ba28-7c302a265f8d is missing
>>>> [ 4772.713703] BTRFS info (device loop5): enabling ssd optimizations
>>>> [ 4772.716270] BTRFS info (device loop5): auto enabling async discard
>>>> [ 4773.735253] BTRFS info (device loop5): dev_replace from <missing disk> (devid 2) to /dev/loop9 started
>>>> [ 4774.089640] BTRFS info (device loop5): dev_replace from <missing disk> (devid 2) to /dev/loop9 finished
>>>> [ 4774.269606] 286 (893750): drop_caches: 3
>>>> [ 4775.897236] BTRFS: device fsid 0552fbf6-2877-4ab3-b5a2-da5db268e1c3 devid 1 transid 6 /dev/loop5 scanned by (udev-worker) (894101)
>>>> [ 4775.905939] BTRFS: device fsid 0552fbf6-2877-4ab3-b5a2-da5db268e1c3 devid 2 transid 6 /dev/loop6 scanned by mkfs.btrfs (894317)
>>>> [ 4775.909603] BTRFS: device fsid 0552fbf6-2877-4ab3-b5a2-da5db268e1c3 devid 3 transid 6 /dev/loop7 scanned by mkfs.btrfs (894317)
>>>> [ 4775.913080] BTRFS: device fsid 0552fbf6-2877-4ab3-b5a2-da5db268e1c3 devid 4 transid 6 /dev/loop8 scanned by mkfs.btrfs (894317)
>>>> [ 4775.928177] BTRFS info (device loop5): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4775.930566] BTRFS info (device loop5): setting nodatasum
>>>> [ 4775.932930] BTRFS info (device loop5): using free space tree
>>>> [ 4775.937296] BTRFS info (device loop5): enabling ssd optimizations
>>>> [ 4775.938306] BTRFS info (device loop5): auto enabling async discard
>>>> [ 4775.940084] BTRFS info (device loop5): checking UUID tree
>>>> [ 4779.204728] BTRFS info (device loop5): using crc32c (crc32c-intel) checksum algorithm
>>>> [ 4779.207351] BTRFS info (device loop5): allowing degraded mounts
>>>> [ 4779.210284] BTRFS info (device loop5): setting nodatasum
>>>> [ 4779.212740] BTRFS info (device loop5): using free space tree
>>>> [ 4779.218547] BTRFS warning (device loop5): devid 2 uuid 9a9f7178-0caa-4c5f-8f92-034e72257005 is missing
>>>> [ 4779.221982] BTRFS warning (device loop5): devid 2 uuid 9a9f7178-0caa-4c5f-8f92-034e72257005 is missing
>>>> [ 4779.227912] BTRFS info (device loop5): enabling ssd optimizations
>>>> [ 4779.230483] BTRFS info (device loop5): auto enabling async discard
>>>> [ 4780.128223] BTRFS info (device loop5): dev_replace from <missing disk> (devid 2) to /dev/loop9 started
>>>> [ 4780.422390] BUG: kernel NULL pointer dereference, address: 0000000000000000
>>>> [ 4780.423934] #PF: supervisor read access in kernel mode
>>>> [ 4780.425584] #PF: error_code(0x0000) - not-present page
>>>> [ 4780.427234] PGD 0 P4D 0
>>>> [ 4780.428293] Oops: 0000 [#1] PREEMPT SMP PTI
>>>> [ 4780.429722] CPU: 3 PID: 761699 Comm: kworker/u16:4 Not tainted 6.4.0-rc6+ #6
>>>> [ 4780.431582] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-1.fc38 04/01/2014
>>>> [ 4780.433897] Workqueue: btrfs-rmw rmw_rbio_work [btrfs]
>>>> [ 4780.435655] RIP: 0010:raid6_sse21_gen_syndrome+0x9e/0x130 [raid6_pq]
>>>> [ 4780.437518] Code: 4d 8d 54 05 00 44 89 c0 48 c1 e0 03 48 29 c6 49 8b 03 48 01 d0 0f 18 00 66 0f 6f 10 49 8b 01 0f 18 04 10 66 0f 6f e2 49 8b 01 <66> 0f 6f 34 10 4c 89 d0 45 85 c0 78 34 48 8b 08 0f 18 04 11 66 0f
>>>> [ 4780.442488] RSP: 0018:ffffb66f0296fdc8 EFLAGS: 00010286
>>>> [ 4780.444147] RAX: 0000000000000000 RBX: 0000000000001000 RCX: ffffa0ff4cfa3248
>>>> [ 4780.446192] RDX: 0000000000000000 RSI: ffffa0f74cfa3238 RDI: 0000000000000000
>>>> [ 4780.448278] RBP: ffffa0ff4e72a000 R08: 00000000fffffffe R09: ffffa0ff4cfa3238
>>>> [ 4780.450387] R10: ffffa0ff4cfa3230 R11: ffffa0ff4cfa3240 R12: ffffa0fe8bdf3000
>>>> [ 4780.452515] R13: ffffa0ff4cfa3240 R14: 0000000000000003 R15: 0000000000000000
>>>> [ 4780.454638] FS: 0000000000000000(0000) GS:ffffa0ff77cc0000(0000) knlGS:0000000000000000
>>>> [ 4780.456956] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>>> [ 4780.458778] CR2: 0000000000000000 CR3: 000000015eb0a001 CR4: 0000000000060ee0
>>>> [ 4780.460789] Call Trace:
>>>> [ 4780.461832] <TASK>
>>>> [ 4780.462804] ? __die+0x1f/0x70
>>>> [ 4780.463915] ? page_fault_oops+0x159/0x450
>>>> [ 4780.465207] ? fixup_exception+0x22/0x310
>>>> [ 4780.466484] ? exc_page_fault+0x7a/0x180
>>>> [ 4780.467666] ? asm_exc_page_fault+0x22/0x30
>>>> [ 4780.468879] ? raid6_sse21_gen_syndrome+0x9e/0x130 [raid6_pq]
>>>> [ 4780.470372] ? raid6_sse21_gen_syndrome+0x38/0x130 [raid6_pq]
>>>> [ 4780.471801] rmw_rbio+0x5c8/0xa80 [btrfs]
>>>> [ 4780.472987] ? preempt_count_add+0x6a/0xa0
>>>> [ 4780.474061] ? lock_stripe_add+0xe1/0x290 [btrfs]
>>>> [ 4780.475288] process_one_work+0x1c7/0x3d0
>>>> [ 4780.476304] worker_thread+0x4d/0x380
>>>> [ 4780.477232] ? __pfx_worker_thread+0x10/0x10
>>>> [ 4780.478241] kthread+0xf3/0x120
>>>> [ 4780.479071] ? __pfx_kthread+0x10/0x10
>>>> [ 4780.479982] ret_from_fork+0x2c/0x50
>>>> [ 4780.480843] </TASK>
>>>> [ 4780.481488] Modules linked in: dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio dm_log_writes dm_flakey nls_iso8859_1 nls_cp437 vfat fat ext4 9p crc16 joydev kvm_intel netfs virtio_net mbcache cirrus kvm psmouse pcspkr net_failover failover xfs irqbypass drm_shmem_helper virtio_balloon jbd2 evdev button 9pnet_virtio drm_kms_helper loop drm dm_mod zram zsmalloc crct10dif_pclmul crc32_pclmul ghash_clmulni_intel sha512_ssse3 sha512_generic aesni_intel nvme virtio_blk crypto_simd nvme_core virtio_pci cryptd t10_pi virtio i6300esb virtio_pci_legacy_dev crc64_rocksoft_generic virtio_pci_modern_dev crc64_rocksoft crc64 virtio_ring serio_raw btrfs blake2b_generic libcrc32c crc32c_generic crc32c_intel xor raid6_pq autofs4
>>>> [ 4780.492421] CR2: 0000000000000000
>>>> [ 4780.493185] ---[ end trace 0000000000000000 ]---
>>>> [ 4780.494099] RIP: 0010:raid6_sse21_gen_syndrome+0x9e/0x130 [raid6_pq]
>>>> [ 4780.495217] Code: 4d 8d 54 05 00 44 89 c0 48 c1 e0 03 48 29 c6 49 8b 03 48 01 d0 0f 18 00 66 0f 6f 10 49 8b 01 0f 18 04 10 66 0f 6f e2 49 8b 01 <66> 0f 6f 34 10 4c 89 d0 45 85 c0 78 34 48 8b 08 0f 18 04 11 66 0f
>>>> [ 4780.498186] RSP: 0018:ffffb66f0296fdc8 EFLAGS: 00010286
>>>> [ 4780.499138] RAX: 0000000000000000 RBX: 0000000000001000 RCX: ffffa0ff4cfa3248
>>>> [ 4780.500327] RDX: 0000000000000000 RSI: ffffa0f74cfa3238 RDI: 0000000000000000
>>>> [ 4780.501533] RBP: ffffa0ff4e72a000 R08: 00000000fffffffe R09: ffffa0ff4cfa3238
>>>> [ 4780.502683] R10: ffffa0ff4cfa3230 R11: ffffa0ff4cfa3240 R12: ffffa0fe8bdf3000
>>>> [ 4780.503827] R13: ffffa0ff4cfa3240 R14: 0000000000000003 R15: 0000000000000000
>>>> [ 4780.504971] FS: 0000000000000000(0000) GS:ffffa0ff77cc0000(0000) knlGS:0000000000000000
>>>> [ 4780.506207] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>>> [ 4780.507143] CR2: 0000000000000000 CR3: 000000015eb0a001 CR4: 0000000000060ee0
>>>> [ 4780.508242] note: kworker/u16:4[761699] exited with irqs disabled
>>>> [ 4780.509242] note: kworker/u16:4[761699] exited with preempt_count 1
>>>>
>>>>
>>>> Looks like a quadword move failed? I'm not well-versed in SSE asm, I'm afraid:
>>>>
>>>> $ ./scripts/faddr2line --list ./lib/raid6/raid6_pq.ko raid6_sse21_gen_syndrome+0x9e/0x130
>>>> raid6_sse21_gen_syndrome+0x9e/0x130:
>>>>
>>>> raid6_sse21_gen_syndrome at /home/jlayton/git/kdevops/linux/lib/raid6/sse2.c:56
>>>> 51 for ( d = 0 ; d < bytes ; d += 16 ) {
>>>> 52 asm volatile("prefetchnta %0" : : "m" (dptr[z0][d]));
>>>> 53 asm volatile("movdqa %0,%%xmm2" : : "m" (dptr[z0][d])); /* P[0] */
>>>> 54 asm volatile("prefetchnta %0" : : "m" (dptr[z0-1][d]));
>>>> 55 asm volatile("movdqa %xmm2,%xmm4"); /* Q[0] */
>>>>> 56< asm volatile("movdqa %0,%%xmm6" : : "m" (dptr[z0-1][d]));
>>>> 57 for ( z = z0-2 ; z >= 0 ; z-- ) {
>>>> 58 asm volatile("prefetchnta %0" : : "m" (dptr[z][d]));
>>>> 59 asm volatile("pcmpgtb %xmm4,%xmm5");
>>>> 60 asm volatile("paddb %xmm4,%xmm4");
>>>> 61 asm volatile("pand %xmm0,%xmm5");
>>>>
>>>>
>>>> This machine is running v6.4.0-rc5 with some ctime handling patches on
>>>> top (nothing that should affect anything at this level). The Kconfig is
>>>> config-next-20230530 from the kdevops tree:
>>>>
>>>> https://github.com/linux-kdevops/kdevops/blob/master/playbooks/roles/bootlinux/templates/config-next-20230530)
>>>>
>>>> Let me know if you need other info!
>>>
>>> Unfortunately there are similar reports but I failed to reproduce anywhere.
>>>
>>> In the past, I have added extra debugging for the reporter, and the
>>> result is, at least every pointer is valid, until the control is passed
>>> to the optimization routine...
>>>
>>> You can try to disable SSE for the vCPU, or even pass AVX feature to the
>>> vCPU, and normally you would see the error gone.
>>>
>>> The last time I see such problem is from David, but we did not got any
>>> progress any further.
>>
>> I haven't seen the crash for a long time, IIRC it's related to SSE2,
>> no acceleration or anything AVX+ works.
>
> Well, I don't think it's related to SSE2 at all.
>
> I sporadically get the same crash with AVX2, for raid56 tests, so I
> would say it's very likely btrfs' fault.
> For example this crash on 6.2 when running btrfs/027:
>
> [10425.262835] general protection fault, probably for non-canonical
> address 0xcccccccccccccccc: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI
> [10425.265179] CPU: 0 PID: 11267 Comm: kworker/u16:2 Not tainted
> 6.2.0-rc7-btrfs-next-145+ #1
> [10425.266196] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
> BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
> [10425.267570] Workqueue: btrfs-rmw rmw_rbio_work [btrfs]
> [10425.268247] RIP: 0010:raid6_avx21_gen_syndrome+0x9e/0x130 [raid6_pq]
In fact, my previous run of that 5.15 backport also hit a crash, but for
avx512 path.
(And 5.15 is even before my RAID56 rework)
Although in my case, it may be related to the special big/little cores
of intel CPUs. (I assigned 8 vCPU to the VM, while there are only 6 big
cores, 8 small cores may not support AVX512)
Furthermore, on my AMD cpus powered VMs, they never hit such crash.
(Both AMD and Intel machines are using host-passingthrough for vCPU
features)
Furthermore, my crash is very random, it crashed in btrfs/297, with all
previous RAID56 test cases passed.
So I'm still not sure what's really going on here.
> [10425.268986] Code: 4d 8d 54 05 00 44 89 c0 48 c1 e0 03 48 29 c6 49
> 8b 03 48 01 d0 0f 18 00 c5 fd 6f 10 49 8b 01 0f 18 04 10 c5 fd 6f e2
> 49 8b 01 <c5> fd 6f 34 10 4c 89 d0 45 85 c0 78 30 48 8b 08 0f 18 04 11
> c>
> [10425.271183] RSP: 0018:ffffb370c722fd80 EFLAGS: 00010286
> [10425.271892] RAX: cccccccccccccccc RBX: 0000000000001000 RCX: ffff9b08a87e9800
The RAX is the first parameter, aka rbio->real_stripes, while RBX is
sectorsize (0x1000 = 4K).
So there is definitely something wrong here.
Can you reproduce the problem reliably?
Thanks,
Qu
> [10425.273176] RDX: 0000000000000000 RSI: ffff9b00a87e98d8 RDI: 0000000000000000
> [10425.274074] RBP: ffff9b08e7e31000 R08: 00000000fffffffe R09: ffff9b08a87e98d8
> [10425.274886] R10: ffff9b08a87e98d0 R11: ffff9b08a87e98e0 R12: ffff9b08e5c00000
> [10425.275742] R13: ffff9b08a87e98e0 R14: 0000000000000003 R15: 0000000000000000
> [10425.276562] FS: 0000000000000000(0000) GS:ffff9b0bace00000(0000)
> knlGS:0000000000000000
> [10425.277515] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [10425.278172] CR2: 00007f7e1a04f421 CR3: 000000017b9b8001 CR4: 0000000000370ef0
> [10425.278982] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [10425.279809] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [10425.280574] Call Trace:
> [10425.280849] <TASK>
> [10425.281064] rmw_rbio.part.0+0x384/0x890 [btrfs]
> [10425.281709] rmw_rbio_work+0x64/0x80 [btrfs]
> [10425.282245] process_one_work+0x24f/0x5a0
> [10425.282672] worker_thread+0x52/0x3b0
> [10425.283059] ? __pfx_worker_thread+0x10/0x10
> [10425.283573] kthread+0xf0/0x120
> [10425.283906] ? __pfx_kthread+0x10/0x10
> [10425.284308] ret_from_fork+0x29/0x50
> [10425.284696] </TASK>
> [10425.284989] Modules linked in: loop btrfs blake2b_generic xor
> raid6_pq libcrc32c overlay intel_rapl_msr intel_rapl_common
> crct10dif_pclmul ghash_clmulni_intel sha512_ssse3 sha512_generic bochs
> aesni_intel dr>
> [10425.295936] ---[ end trace 0000000000000000 ]---
>
> Qu also got the same crash on AVX recently.
>
next prev parent reply other threads:[~2024-01-25 23:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-15 17:58 BUG in raid6_pq while running fstest btrfs/286 Jeff Layton
2023-06-16 1:57 ` Qu Wenruo
2023-06-19 17:54 ` David Sterba
2023-06-19 18:23 ` Jeff Layton
2024-01-25 10:13 ` Filipe Manana
2024-01-25 23:04 ` Qu Wenruo [this message]
2024-01-26 11:55 ` Filipe Manana
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=e8651759-c364-424a-a2b7-ef7acd128974@gmx.com \
--to=quwenruo.btrfs@gmx.com \
--cc=agordeev@linux.ibm.com \
--cc=dsterba@suse.cz \
--cc=fdmanana@kernel.org \
--cc=giulio.benetti@benettiengineering.com \
--cc=hca@linux.ibm.com \
--cc=jlayton@kernel.org \
--cc=linux-btrfs@vger.kernel.org \
--cc=song@kernel.org \
--cc=wqu@suse.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox