INFO: task syz-executor.3:22217 blocked for more than 143 seconds.
Not tainted 5.15.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29592 pid:22217 ppid: 6934 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
rwsem_down_write_slowpath+0x761/0x1130 kernel/locking/rwsem.c:1117
__down_write_common kernel/locking/rwsem.c:1272 [inline]
__down_write_common kernel/locking/rwsem.c:1269 [inline]
__down_write kernel/locking/rwsem.c:1281 [inline]
down_write+0x135/0x150 kernel/locking/rwsem.c:1528
filemap_invalidate_lock include/linux/fs.h:828 [inline]
blkdev_fallocate+0x1e2/0x420 block/fops.c:625
vfs_fallocate+0x48d/0xe10 fs/open.c:307
ksys_fallocate fs/open.c:330 [inline]
__do_sys_fallocate fs/open.c:338 [inline]
__se_sys_fallocate fs/open.c:336 [inline]
__x64_sys_fallocate+0xcf/0x140 fs/open.c:336
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7ab2901ae9
RSP: 002b:00007f7aafe35188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f7ab2a150e0 RCX: 00007f7ab2901ae9
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00007f7ab295bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7ab2f48b2f R14: 00007f7aafe35300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8bb83b60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6224:
2 locks held by kworker/u4:6/6899:
#0: ffff8880b9d39a98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
#1: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3a6/0x490 kernel/sched/psi.c:880
1 lock held by syz-executor.3/22161:
#0: ffff888011106788 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline]
#0: ffff888011106788 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e2/0x420 block/fops.c:625
1 lock held by syz-executor.3/22217:
#0: ffff888011106788 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline]
#0: ffff888011106788 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e2/0x420 block/fops.c:625
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2965 Comm: systemd-journal Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:perf_trace_lock_acquire+0x366/0x550 include/trace/events/lock.h:13
Code: 00 41 b8 01 00 00 00 4c 89 d7 53 e8 74 e1 3a 00 58 5a 48 b8 00 00 00 00 00 fc ff df 48 03 85 50 ff ff ff 48 c7 00 00 00 00 00 40 08 00 00 00 00 48 8b 45 d0 65 48 2b 04 25 28 00 00 00 0f 85
RSP: 0018:ffffc90001d7fb18 EFLAGS: 00000282
RAX: fffff520003aff6b RBX: ffffe8ffffd13be8 RCX: 1ffffffff16ac915
RDX: 1ffffd1ffffa277d RSI: 0000000000000001 RDI: ffffffff8ba80fa0
RBP: ffffc90001d7fc00 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff1b22e62 R11: 0000000000000000 R12: 000000000000000e
R13: ffffffff8ba80f20 R14: ffff88807b904e28 R15: ffffc90001d7fbd8
FS: 00007fcf1207b8c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcf0d83d000 CR3: 000000001c0ff000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_lock_acquire include/trace/events/lock.h:13 [inline]
lock_acquire+0x416/0x510 kernel/locking/lockdep.c:5608
__might_fault mm/memory.c:5253 [inline]
__might_fault+0x104/0x170 mm/memory.c:5238
_copy_to_user+0x27/0x150 lib/usercopy.c:28
copy_to_user include/linux/uaccess.h:200 [inline]
devkmsg_read+0x537/0x730 kernel/printk/printk.c:761
vfs_read+0x1b5/0x600 fs/read_write.c:479
ksys_read+0x12d/0x250 fs/read_write.c:619
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fcf1160a210
Code: 73 01 c3 48 8b 0d 98 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d b9 c1 20 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 4e fc ff ff 48 89 04 24
RSP: 002b:00007fff31f5e5e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fff31f61060 RCX: 00007fcf1160a210
RDX: 0000000000002000 RSI: 00007fff31f5ee60 RDI: 0000000000000009
RBP: 0000000000000000 R08: 0000000000000008 R09: 00005594f435e7b8
R10: 00005594f435e780 R11: 0000000000000246 R12: 00007fff31f5ee60
R13: 00007fff31f60fb8 R14: 00005594f428a958 R15: 0005d0c8206808d9
----------------
Code disassembly (best guess):
0: 00 41 b8 add %al,-0x48(%rcx)
3: 01 00 add %eax,(%rax)
5: 00 00 add %al,(%rax)
7: 4c 89 d7 mov %r10,%rdi
a: 53 push %rbx
b: e8 74 e1 3a 00 callq 0x3ae184
10: 58 pop %rax
11: 5a pop %rdx
12: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
19: fc ff df
1c: 48 03 85 50 ff ff ff add -0xb0(%rbp),%rax
23: 48 c7 00 00 00 00 00 movq $0x0,(%rax)
* 2a: c7 40 08 00 00 00 00 movl $0x0,0x8(%rax) <-- trapping instruction
31: 48 8b 45 d0 mov -0x30(%rbp),%rax
35: 65 48 2b 04 25 28 00 sub %gs:0x28,%rax
3c: 00 00
3e: 0f .byte 0xf
3f: 85 .byte 0x85