Hello,
kernel test robot noticed "WARNING:at_fs/netfs/write_collect.c:#netfs_writeback_lookup_folio" on:
commit: b4834f12a4df607aaedc627fa9b93f3b18f664ba ("cifs: Cut over to using netfslib")
https://git.kernel.org/cgit/linux/kernel/git/dhowells/linux-fs.git cifs-netfs
in testcase: filebench
version: filebench-x86_64-22620e6-1_20240224
with following parameters:
disk: 1HDD
fs: btrfs
fs2: cifs
test: filemicro_seqwriterandvargam.f
cpufreq_governor: performance
compiler: gcc-13
test machine: 96 threads 2 sockets Intel(R) Xeon(R) Platinum 8260L CPU @ 2.40GHz (Cascade Lake) with 128G memory
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202404161031.468b84f-oliver.sang@xxxxxxxxx
[ 51.734544][ T654] ------------[ cut here ]------------
[ 51.740181][ T654] R=00000012: folio 11 is not under writeback
[ 51.746415][ T654] WARNING: CPU: 34 PID: 654 at fs/netfs/write_collect.c:105 netfs_writeback_lookup_folio (fs/netfs/write_collect.c:105 (discriminator 1))
[ 51.757394][ T654] Modules linked in: cmac nls_utf8 cifs cifs_arc4 nls_ucs2_utils cifs_md4 dns_resolver kmem intel_rapl_msr intel_rapl_common skx_edac x86_pkg_temp_thermal btrfs intel_powerclamp coretemp kvm_intel blake2b_generic xor sr_mod kvm cdrom raid6_pq crct10dif_pclmul sd_mod crc32_pclmul libcrc32c crc32c_intel ghash_clmulni_intel sg sha512_ssse3 ipmi_ssif binfmt_misc device_dax nvme nd_pmem rapl nvme_core nd_btt dax_pmem ahci ast t10_pi libahci intel_cstate acpi_ipmi ipmi_si crc64_rocksoft_generic mei_me drm_shmem_helper i2c_i801 crc64_rocksoft ipmi_devintf ioatdma libata drm_kms_helper intel_uncore mei nfit crc64 lpc_ich i2c_smbus intel_pch_thermal dca wmi ipmi_msghandler libnvdimm joydev drm fuse dm_mod loop ip_tables
[ 51.775438][ T1342] Events disabled
[ 51.821864][ T654] CPU: 34 PID: 654 Comm: kworker/u386:27 Tainted: G S 6.9.0-rc3-00036-gb4834f12a4df #1
[ 51.823577][ T1342]
[ 51.827064][ T654] Hardware name: Intel Corporation S2600WFD/S2600WFD, BIOS SE5C620.86B.0D.01.0286.011120190816 01/11/2019
[ 51.827066][ T654] Workqueue: events_unbound netfs_write_collection_worker
[ 51.838243][ T1342] Events disabled
[ 51.840127][ T654]
[ 51.840128][ T654] RIP: 0010:netfs_writeback_lookup_folio (fs/netfs/write_collect.c:105 (discriminator 1))
[ 51.851254][ T1342]
[ 51.858206][ T654] Code: 48 89 de e8 c9 ad ff ff e9 62 ff ff ff 48 8b 53 20 8b b5 ac 01 00 00 48 c7 c7 d0 e0 97 82 c6 05 12 0b c0 01 01 e8 a7 f8 b9 ff <0f> 0b eb a8 e8 1e 99 ae 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
All code
========
0: 48 89 de mov %rbx,%rsi
3: e8 c9 ad ff ff callq 0xffffffffffffadd1
8: e9 62 ff ff ff jmpq 0xffffffffffffff6f
d: 48 8b 53 20 mov 0x20(%rbx),%rdx
11: 8b b5 ac 01 00 00 mov 0x1ac(%rbp),%esi
17: 48 c7 c7 d0 e0 97 82 mov $0xffffffff8297e0d0,%rdi
1e: c6 05 12 0b c0 01 01 movb $0x1,0x1c00b12(%rip) # 0x1c00b37
25: e8 a7 f8 b9 ff callq 0xffffffffffb9f8d1
2a:* 0f 0b ud2 <-- trapping instruction
2c: eb a8 jmp 0xffffffffffffffd6
2e: e8 1e 99 ae 00 callq 0xae9951
33: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
3a: 00 00 00 00
3e: 0f .byte 0xf
3f: 1f (bad)
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: eb a8 jmp 0xffffffffffffffac
4: e8 1e 99 ae 00 callq 0xae9927
9: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
10: 00 00 00 00
14: 0f .byte 0xf
15: 1f (bad)
[ 51.858208][ T654] RSP: 0018:ffffc90007f57d80 EFLAGS: 00010286
[ 51.858209][ T654] RAX: 0000000000000000 RBX: ffffea00081f3340 RCX: 0000000000000000
[ 51.909493][ T654] RDX: ffff88df016ae2c0 RSI: ffff88df016a0b00 RDI: ffff88df016a0b00
[ 51.917619][ T654] RBP: ffff88816bbc8280 R08: 0000000000000000 R09: 0000000000000003
[ 51.925740][ T654] R10: ffffc90007f57c18 R11: ffffffff82fd56a8 R12: 0000000000000011
[ 51.933861][ T654] R13: ffff88cf8421af00 R14: ffff88816bbc8280 R15: ffff88816bbc83e0
[ 51.941993][ T654] FS: 0000000000000000(0000) GS:ffff88df01680000(0000) knlGS:0000000000000000
[ 51.951072][ T654] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 51.957817][ T654] CR2: 00007ffff7e0ed90 CR3: 0000005f7de1c002 CR4: 00000000007706f0
[ 51.965946][ T654] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 51.974071][ T654] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 51.982190][ T654] PKRU: 55555554
[ 51.985880][ T654] Call Trace:
[ 51.989369][ T654] <TASK>
[ 51.992447][ T654] ? __warn (kernel/panic.c:694)
[ 51.996657][ T654] ? netfs_writeback_lookup_folio (fs/netfs/write_collect.c:105 (discriminator 1))
[ 52.002864][ T654] ? report_bug (lib/bug.c:180 lib/bug.c:219)
[ 52.007512][ T654] ? handle_bug (arch/x86/kernel/traps.c:239)
[ 52.011982][ T654] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1))
[ 52.016793][ T654] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621)
[ 52.021948][ T654] ? netfs_writeback_lookup_folio (fs/netfs/write_collect.c:105 (discriminator 1))
[ 52.028140][ T654] netfs_collect_write_results (fs/netfs/write_collect.c:128 (discriminator 1) fs/netfs/write_collect.c:547 (discriminator 1))
[ 52.034062][ T654] netfs_write_collection_worker (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 fs/netfs/write_collect.c:637)
[ 52.040078][ T654] process_one_work (kernel/workqueue.c:3254)
[ 52.045046][ T654] worker_thread (kernel/workqueue.c:3329 (discriminator 2) kernel/workqueue.c:3416 (discriminator 2))
[ 52.049749][ T654] ? __pfx_worker_thread (kernel/workqueue.c:3362)
[ 52.054965][ T654] kthread (kernel/kthread.c:388)
[ 52.058967][ T654] ? __pfx_kthread (kernel/kthread.c:341)
[ 52.063652][ T654] ret_from_fork (arch/x86/kernel/process.c:147)
[ 52.068171][ T654] ? __pfx_kthread (kernel/kthread.c:341)
[ 52.072850][ T654] ret_from_fork_asm (arch/x86/entry/entry_64.S:256)
[ 52.077711][ T654] </TASK>
[ 52.080821][ T654] ---[ end trace 0000000000000000 ]---
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240416/202404161031.468b84f-oliver.sang@xxxxxxxxx
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
