* Re: [LTP] [PATCH] Fix BUG: KCSAN: data-race in fat16_ent_get / fat16_ent_put
[not found] <20241028202645.412589-1-danielyangkang@gmail.com>
@ 2024-11-05 2:39 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-11-05 2:39 UTC (permalink / raw)
To: Daniel Yang
Cc: lkp, linux-fsdevel,
linux-kernel@vger.kernel.org (open list), Daniel Yang, ltp,
oe-lkp, oliver.sang, syzbot+3999cae1c2d59c2cc8b9, OGAWA Hirofumi
Hello,
kernel test robot noticed "BUG:sleeping_function_called_from_invalid_context_at_include/linux/sched/mm.h" on:
commit: d83bdef3f16d8ab604c50c6328ebfb439fdc94a2 ("[PATCH] Fix BUG: KCSAN: data-race in fat16_ent_get / fat16_ent_put")
url: https://github.com/intel-lab-lkp/linux/commits/Daniel-Yang/Fix-BUG-KCSAN-data-race-in-fat16_ent_get-fat16_ent_put/20241029-043546
base: https://git.kernel.org/cgit/linux/kernel/git/vfs/vfs.git vfs.all
patch link: https://lore.kernel.org/all/20241028202645.412589-1-danielyangkang@gmail.com/
patch subject: [PATCH] Fix BUG: KCSAN: data-race in fat16_ent_get / fat16_ent_put
in testcase: ltp
version: ltp-x86_64-14c1f76-1_20241102
with following parameters:
disk: 1HDD
fs: btrfs
test: syscalls-06
config: x86_64-rhel-8.3-ltp
compiler: gcc-12
test machine: 4 threads 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz (Ivy Bridge) with 8G 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@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202411051037.304ba029-oliver.sang@intel.com
kern :err : [ 377.372938] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:321
kern :err : [ 377.382306] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4784, name: fallocate05
kern :err : [ 377.391362] preempt_count: 1, expected: 0
kern :err : [ 377.396140] RCU nest depth: 0, expected: 0
kern :warn : [ 377.401018] CPU: 1 UID: 0 PID: 4784 Comm: fallocate05 Tainted: G S 6.12.0-rc4-00129-gd83bdef3f16d #1
kern :warn : [ 377.412292] Tainted: [S]=CPU_OUT_OF_SPEC
kern :warn : [ 377.416956] Hardware name: Hewlett-Packard HP Pro 3340 MT/17A1, BIOS 8.07 01/24/2013
kern :warn : [ 377.425444] Call Trace:
kern :warn : [ 377.428639] <TASK>
kern :warn : [ 377.431476] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1))
kern :warn : [ 377.435880] __might_resched (kernel/sched/core.c:8654)
kern :warn : [ 377.440575] ? __pfx___might_resched (kernel/sched/core.c:8608)
kern :warn : [ 377.445767] ? __find_get_block (include/linux/buffer_head.h:324 fs/buffer.c:1352 fs/buffer.c:1406 fs/buffer.c:1398)
kern :warn : [ 377.450700] __bread_gfp (include/linux/kernel.h:73 include/linux/sched/mm.h:321 fs/buffer.c:1433 fs/buffer.c:1491)
kern :warn : [ 377.454958] ? generic_perform_write (mm/filemap.c:4056)
kern :warn : [ 377.460334] fat_ent_bread (fs/fat/fatent.c:109 (discriminator 3)) fat
kern :warn : [ 377.465379] fat_ent_read (fs/fat/fatent.c:369) fat
kern :warn : [ 377.470339] ? __pfx_fat_ent_read (fs/fat/fatent.c:350) fat
kern :warn : [ 377.475821] ? _raw_spin_lock (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
kern :warn : [ 377.480406] ? __pfx__raw_spin_lock (kernel/locking/spinlock.c:153)
kern :warn : [ 377.485514] fat_get_cluster (fs/fat/cache.c:267) fat
kern :warn : [ 377.490800] ? kasan_save_track (arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69)
kern :warn : [ 377.495555] ? __pfx_fat_get_cluster (fs/fat/cache.c:226) fat
kern :warn : [ 377.501252] ? _raw_spin_lock (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
kern :warn : [ 377.505815] ? __pfx__raw_spin_lock (kernel/locking/spinlock.c:153)
kern :warn : [ 377.510897] fat_free+0x47b/0x830 fat
kern :warn : [ 377.516070] ? __pfx_fat_free+0x10/0x10 fat
kern :warn : [ 377.521767] ? unmap_mapping_range (mm/memory.c:3860)
kern :warn : [ 377.526846] ? __pfx_unmap_mapping_range (mm/memory.c:3860)
kern :warn : [ 377.532406] ? __pfx_unmap_mapping_range (mm/memory.c:3860)
kern :warn : [ 377.537943] fat_truncate_blocks (fs/fat/file.c:407 (discriminator 3)) fat
kern :warn : [ 377.543467] fat_write_begin (fs/fat/inode.c:218 fs/fat/inode.c:232) fat
kern :warn : [ 377.548557] generic_perform_write (mm/filemap.c:4056)
kern :warn : [ 377.553723] ? __pfx___might_resched (kernel/sched/core.c:8608)
kern :warn : [ 377.558890] ? __pfx_generic_perform_write (mm/filemap.c:4018)
kern :warn : [ 377.564575] ? fat_update_time (fs/fat/misc.c:359) fat
kern :warn : [ 377.569774] ? file_update_time (fs/inode.c:2383)
kern :warn : [ 377.574729] generic_file_write_iter (include/linux/fs.h:821 mm/filemap.c:4184)
kern :warn : [ 377.580005] vfs_write (fs/read_write.c:590 fs/read_write.c:683)
kern :warn : [ 377.584135] ? __pfx___might_resched (kernel/sched/core.c:8608)
kern :warn : [ 377.589309] ? __pfx_vfs_write (fs/read_write.c:664)
kern :warn : [ 377.593955] ? __pfx___might_resched (kernel/sched/core.c:8608)
kern :warn : [ 377.599121] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049)
kern :warn : [ 377.604737] ? asm_sysvec_apic_timer_interrupt (arch/x86/include/asm/idtentry.h:702)
kern :warn : [ 377.610809] ? fdget_pos (arch/x86/include/asm/atomic64_64.h:15 include/linux/atomic/atomic-arch-fallback.h:2583 include/linux/atomic/atomic-long.h:38 include/linux/atomic/atomic-instrumented.h:3189 include/linux/file_ref.h:171 fs/file.c:1181 fs/file.c:1189)
kern :warn : [ 377.615141] ? up_write (arch/x86/include/asm/atomic64_64.h:87 include/linux/atomic/atomic-arch-fallback.h:2852 include/linux/atomic/atomic-long.h:268 include/linux/atomic/atomic-instrumented.h:3391 kernel/locking/rwsem.c:1372 kernel/locking/rwsem.c:1630)
kern :warn : [ 377.619204] ksys_write (fs/read_write.c:736)
kern :warn : [ 377.623369] ? __pfx_ksys_write (fs/read_write.c:726)
kern :warn : [ 377.628150] ? __rseq_handle_notify_resume (kernel/rseq.c:333)
kern :warn : [ 377.633881] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
kern :warn : [ 377.638306] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
kern :warn : [ 377.644094] RIP: 0033:0x7f287cd67240
kern :warn : [ 377.648423] Code: 40 00 48 8b 15 c1 9b 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 23 0e 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
All code
========
0: 40 00 48 8b rex add %cl,-0x75(%rax)
4: 15 c1 9b 0d 00 adc $0xd9bc1,%eax
9: f7 d8 neg %eax
b: 64 89 02 mov %eax,%fs:(%rdx)
e: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax
15: eb b7 jmp 0xffffffffffffffce
17: 0f 1f 00 nopl (%rax)
1a: 80 3d a1 23 0e 00 00 cmpb $0x0,0xe23a1(%rip) # 0xe23c2
21: 74 17 je 0x3a
23: b8 01 00 00 00 mov $0x1,%eax
28: 0f 05 syscall
2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction
30: 77 58 ja 0x8a
32: c3 ret
33: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
3a: 48 83 ec 28 sub $0x28,%rsp
3e: 48 rex.W
3f: 89 .byte 0x89
Code starting with the faulting instruction
===========================================
0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax
6: 77 58 ja 0x60
8: c3 ret
9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
10: 48 83 ec 28 sub $0x28,%rsp
14: 48 rex.W
15: 89 .byte 0x89
kern :warn : [ 377.667929] RSP: 002b:00007ffd8d96db68 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
kern :warn : [ 377.676231] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007f287cd67240
kern :warn : [ 377.684089] RDX: 0000000000001000 RSI: 0000562f0070cf18 RDI: 0000000000000005
kern :warn : [ 377.691953] RBP: 0000562f0070b058 R08: 0000000000000000 R09: 0000000000000075
kern :warn : [ 377.699805] R10: 00000000000001c0 R11: 0000000000000202 R12: 0000562f0070ce08
kern :warn : [ 377.707660] R13: 000000000011f8ec R14: 00007ffd8d96dbf0 R15: 0000000000000005
kern :warn : [ 377.715522] </TASK>
kern :err : [ 379.995791] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:321
kern :err : [ 380.005158] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4784, name: fallocate05
kern :err : [ 380.014176] preempt_count: 1, expected: 0
kern :err : [ 380.018931] RCU nest depth: 0, expected: 0
kern :warn : [ 380.023773] CPU: 1 UID: 0 PID: 4784 Comm: fallocate05 Tainted: G S W 6.12.0-rc4-00129-gd83bdef3f16d #1
kern :warn : [ 380.035011] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN
kern :warn : [ 380.040515] Hardware name: Hewlett-Packard HP Pro 3340 MT/17A1, BIOS 8.07 01/24/2013
kern :warn : [ 380.048964] Call Trace:
kern :warn : [ 380.052128] <TASK>
kern :warn : [ 380.054943] dump_stack_lvl (lib/dump_stack.c:123 (discriminator 1))
kern :warn : [ 380.059321] __might_resched (kernel/sched/core.c:8654)
kern :warn : [ 380.063957] ? __pfx___might_resched (kernel/sched/core.c:8608)
kern :warn : [ 380.069112] ? __find_get_block (include/linux/buffer_head.h:324 fs/buffer.c:1352 fs/buffer.c:1406 fs/buffer.c:1398)
kern :warn : [ 380.074008] __bread_gfp (include/linux/kernel.h:73 include/linux/sched/mm.h:321 fs/buffer.c:1433 fs/buffer.c:1491)
kern :warn : [ 380.078211] ? generic_perform_write (mm/filemap.c:4056)
kern :warn : [ 380.083544] fat_ent_bread (fs/fat/fatent.c:109 (discriminator 3)) fat
kern :warn : [ 380.088535] fat_ent_read (fs/fat/fatent.c:369) fat
kern :warn : [ 380.093431] ? __pfx_fat_ent_read (fs/fat/fatent.c:350) fat
kern :warn : [ 380.098847] ? _raw_spin_lock (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
kern :warn : [ 380.103396] ? __pfx__raw_spin_lock (kernel/locking/spinlock.c:153)
kern :warn : [ 380.108467] fat_get_cluster (fs/fat/cache.c:267) fat
kern :warn : [ 380.113714] ? kasan_save_track (arch/x86/include/asm/current.h:49 mm/kasan/common.c:60 mm/kasan/common.c:69)
kern :warn : [ 380.118438] ? __pfx_fat_get_cluster (fs/fat/cache.c:226) fat
kern :warn : [ 380.124121] ? _raw_spin_lock (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
kern :warn : [ 380.128669] ? _raw_spin_lock (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
kern :warn : [ 380.133222] ? __pfx__raw_spin_lock (kernel/locking/spinlock.c:153)
kern :warn : [ 380.138290] ? __mark_inode_dirty (fs/fs-writeback.c:2519)
kern :warn : [ 380.143358] fat_free+0x47b/0x830 fat
kern :warn : [ 380.148518] ? __pfx_fat_free+0x10/0x10 fat
kern :warn : [ 380.154205] ? unmap_mapping_range (mm/memory.c:3860)
kern :warn : [ 380.159272] ? __pfx_unmap_mapping_range (mm/memory.c:3860)
kern :warn : [ 380.164774] ? __pfx_unmap_mapping_range (mm/memory.c:3860)
kern :warn : [ 380.170279] fat_truncate_blocks (fs/fat/file.c:407 (discriminator 3)) fat
kern :warn : [ 380.175792] fat_write_begin (fs/fat/inode.c:218 fs/fat/inode.c:232) fat
kern :warn : [ 380.180868] generic_perform_write (mm/filemap.c:4056)
kern :warn : [ 380.186024] ? inode_io_list_move_locked (arch/x86/include/asm/bitops.h:206 arch/x86/include/asm/bitops.h:238 include/asm-generic/bitops/instrumented-non-atomic.h:142 include/linux/backing-dev.h:51 fs/fs-writeback.c:87 fs/fs-writeback.c:130)
kern :warn : [ 380.191703] ? __pfx_generic_perform_write (mm/filemap.c:4018)
kern :warn : [ 380.197379] ? fat_update_time (fs/fat/misc.c:359) fat
kern :warn : [ 380.202544] ? file_update_time (fs/inode.c:2383)
kern :warn : [ 380.207440] generic_file_write_iter (include/linux/fs.h:821 mm/filemap.c:4184)
kern :warn : [ 380.212682] vfs_write (fs/read_write.c:590 fs/read_write.c:683)
kern :warn : [ 380.216799] ? __pfx___might_resched (kernel/sched/core.c:8608)
kern :warn : [ 380.221956] ? __pfx_vfs_write (fs/read_write.c:664)
kern :warn : [ 380.226592] ? __pfx___might_resched (kernel/sched/core.c:8608)
kern :warn : [ 380.231750] ? fdget_pos (arch/x86/include/asm/atomic64_64.h:15 include/linux/atomic/atomic-arch-fallback.h:2583 include/linux/atomic/atomic-long.h:38 include/linux/atomic/atomic-instrumented.h:3189 include/linux/file_ref.h:171 fs/file.c:1181 fs/file.c:1189)
kern :warn : [ 380.236041] ksys_write (fs/read_write.c:736)
kern :warn : [ 380.240156] ? __pfx_ksys_write (fs/read_write.c:726)
kern :warn : [ 380.244880] ? switch_fpu_return (arch/x86/include/asm/bitops.h:75 include/asm-generic/bitops/instrumented-atomic.h:42 include/linux/thread_info.h:94 arch/x86/kernel/fpu/context.h:79 arch/x86/kernel/fpu/core.c:787)
kern :warn : [ 380.249777] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
kern :warn : [ 380.254159] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
kern :warn : [ 380.259924] RIP: 0033:0x7f287cd67240
kern :warn : [ 380.264217] Code: 40 00 48 8b 15 c1 9b 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 23 0e 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89
All code
========
0: 40 00 48 8b rex add %cl,-0x75(%rax)
4: 15 c1 9b 0d 00 adc $0xd9bc1,%eax
9: f7 d8 neg %eax
b: 64 89 02 mov %eax,%fs:(%rdx)
e: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax
15: eb b7 jmp 0xffffffffffffffce
17: 0f 1f 00 nopl (%rax)
1a: 80 3d a1 23 0e 00 00 cmpb $0x0,0xe23a1(%rip) # 0xe23c2
21: 74 17 je 0x3a
23: b8 01 00 00 00 mov $0x1,%eax
28: 0f 05 syscall
2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction
30: 77 58 ja 0x8a
32: c3 ret
33: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
3a: 48 83 ec 28 sub $0x28,%rsp
3e: 48 rex.W
3f: 89 .byte 0x89
Code starting with the faulting instruction
===========================================
0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax
6: 77 58 ja 0x60
8: c3 ret
9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
10: 48 83 ec 28 sub $0x28,%rsp
14: 48 rex.W
15: 89 .byte 0x89
kern :warn : [ 380.283678] RSP: 002b:00007ffd8d96db68 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
kern :warn : [ 380.291958] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007f287cd67240
kern :warn : [ 380.299803] RDX: 0000000000001000 RSI: 0000562f0070cf18 RDI: 0000000000000005
kern :warn : [ 380.307644] RBP: 0000562f0070b058 R08: 00007f287cc6c6c0 R09: 0000000000000075
kern :warn : [ 380.315488] R10: 00007f287cc85b98 R11: 0000000000000202 R12: 0000562f0070ce08
kern :warn : [ 380.323330] R13: 000000000008fc76 R14: 00007ffd8d96dbf0 R15: 0000000000000005
kern :warn : [ 380.331176] </TASK>
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241105/202411051037.304ba029-oliver.sang@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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