INFO: task syz.8.626:12026 blocked for more than 143 seconds.
Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.626 state:D stack:20240 pid:12026 tgid:12021 ppid:11678 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:818 [inline]
bch2_direct_write+0x243/0x31a0 fs/bcachefs/fs-io-direct.c:599
bch2_write_iter+0x194/0x2c10 fs/bcachefs/fs-io-buffered.c:1036
do_iter_readv_writev+0x600/0x880
vfs_writev+0x376/0xba0 fs/read_write.c:1050
do_pwritev fs/read_write.c:1146 [inline]
__do_sys_pwritev2 fs/read_write.c:1204 [inline]
__se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f28de185d29
RSP: 002b:00007f28def81038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007f28de376080 RCX: 00007f28de185d29
RDX: 0000000000000001 RSI: 0000000020000240 RDI: 0000000000000007
RBP: 00007f28de201b08 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000007800 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f28de376080 R15: 00007ffdb24d2e38
INFO: task syz.8.626:12088 blocked for more than 143 seconds.
Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.626 state:D stack:17328 pid:12088 tgid:12021 ppid:11678 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1694
vfs_rename+0x6a2/0xf00 fs/namei.c:5038
do_renameat2+0xd94/0x13f0 fs/namei.c:5224
__do_sys_rename fs/namei.c:5271 [inline]
__se_sys_rename fs/namei.c:5269 [inline]
__x64_sys_rename+0x82/0x90 fs/namei.c:5269
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f28de185d29
RSP: 002b:00007f28def60038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007f28de376160 RCX: 00007f28de185d29
RDX: 0000000000000000 RSI: 0000000020001080 RDI: 0000000020001800
RBP: 00007f28de201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f28de376160 R15: 00007ffdb24d2e38
INFO: task syz.8.626:12092 blocked for more than 144 seconds.
Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.626 state:D stack:28208 pid:12092 tgid:12021 ppid:11678 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
inode_lock_shared include/linux/fs.h:828 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1807
walk_component+0x2e1/0x410 fs/namei.c:2112
lookup_last fs/namei.c:2610 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2634
filename_lookup+0x2a3/0x670 fs/namei.c:2663
user_path_at+0x3a/0x60 fs/namei.c:3070
do_sys_truncate+0xa4/0x190 fs/open.c:132
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f28de185d29
RSP: 002b:00007f28def3f038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f28de376240 RCX: 00007f28de185d29
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000020000140
RBP: 00007f28de201b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f28de376240 R15: 00007ffdb24d2e38
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 16723 Comm: syz.8.1086 Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:preempt_count_add+0x44/0x190 kernel/sched/core.c:5851
Code: 00 00 00 fc ff df 42 0f b6 04 38 84 c0 0f 85 ed 00 00 00 83 3d dc 08 ca 18 00 75 07 65 8b 05 9b 53 96 7e 65 01 1d 94 53 96 7e <48> c7 c0 c0 89 37 9a 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 e4 00
RSP: 0018:ffffc90017856e70 EFLAGS: 00000282
RAX: 0000000080000000 RBX: 0000000000000001 RCX: ffffffff9a378903
RDX: dffffc0000000000 RSI: ffffffff81f56b12 RDI: 0000000000000001
RBP: ffffc90017856f98 R08: 0000000000000002 R09: ffffc90017857050
R10: ffffc90017856fb0 R11: ffffffff818b39c0 R12: dffffc0000000000
R13: ffffc90017856f60 R14: ffffffff81f56b12 R15: dffffc0000000000
FS: 00007f35a61916c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa41f1ff000 CR3: 0000000064a36000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_next_frame+0xb0/0x22d0 arch/x86/kernel/unwind_orc.c:479
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__set_page_owner+0x92/0x800 mm/page_owner.c:320
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1558
prep_new_page mm/page_alloc.c:1566 [inline]
get_page_from_freelist+0x3651/0x37a0 mm/page_alloc.c:3476
__alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4753
alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2269
folio_alloc_mpol_noprof+0x36/0x50 mm/mempolicy.c:2287
shmem_alloc_folio mm/shmem.c:1798 [inline]
shmem_alloc_and_add_folio+0x4a0/0x1080 mm/shmem.c:1837
shmem_get_folio_gfp+0x621/0x1840 mm/shmem.c:2357
shmem_get_folio mm/shmem.c:2463 [inline]
shmem_write_begin+0x165/0x350 mm/shmem.c:3119
generic_perform_write+0x346/0x990 mm/filemap.c:4055
shmem_file_write_iter+0xf9/0x120 mm/shmem.c:3295
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f35a53847df
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48
RSP: 002b:00007f35a6190df0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000013bd7ef RCX: 00007f35a53847df
RDX: 00000000013bd7ef RSI: 00007f359ac00000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000553b
R10: 00000000000003ca R11: 0000000000000293 R12: 0000000000000003
R13: 00007f35a6190ef0 R14: 00007f35a6190eb0 R15: 00007f359ac00000