INFO: task syz-executor.4:13958 blocked for more than 143 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24432 pid:13958 ppid: 8073 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1151
__down_write_common kernel/locking/rwsem.c:1268 [inline]
__down_write kernel/locking/rwsem.c:1277 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1524
filemap_invalidate_lock include/linux/fs.h:828 [inline]
blkdev_fallocate+0x21f/0x390 block/fops.c:625
vfs_fallocate+0x54a/0x930 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+0xb9/0x100 fs/open.c:336
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc295674ae9
RSP: 002b:00007fc292bea188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fc295787f60 RCX: 00007fc295674ae9
RDX: 0000000000080000 RSI: 0000000000000011 RDI: 0000000000000005
RBP: 00007fc2956cef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000008800 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4b188d0f R14: 00007fc292bea300 R15: 0000000000022000
INFO: task syz-executor.4:13963 blocked for more than 143 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26768 pid:13963 ppid: 8073 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1151
__down_write_common kernel/locking/rwsem.c:1268 [inline]
__down_write kernel/locking/rwsem.c:1277 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1524
filemap_invalidate_lock include/linux/fs.h:828 [inline]
blkdev_fallocate+0x21f/0x390 block/fops.c:625
vfs_fallocate+0x54a/0x930 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+0xb9/0x100 fs/open.c:336
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc295674ae9
RSP: 002b:00007fc292bc9188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fc295788020 RCX: 00007fc295674ae9
RDX: 0000000000080000 RSI: 0000000000000011 RDI: 0000000000000005
RBP: 00007fc2956cef6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000008800 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff4b188d0f R14: 00007fc292bc9300 R15: 0000000000022000
INFO: task syz-executor.1:13981 blocked for more than 144 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27088 pid:13981 ppid: 6509 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1151
__down_write_common kernel/locking/rwsem.c:1268 [inline]
__down_write kernel/locking/rwsem.c:1277 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1524
filemap_invalidate_lock include/linux/fs.h:828 [inline]
blkdev_fallocate+0x21f/0x390 block/fops.c:625
vfs_fallocate+0x54a/0x930 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+0xb9/0x100 fs/open.c:336
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fda54eb7ae9
RSP: 002b:00007fda523eb188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fda54fcb0e0 RCX: 00007fda54eb7ae9
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000005
RBP: 00007fda54f11f6d R08: 0000000000000000 R09: 0000000000000000
R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffee3a292f R14: 00007fda523eb300 R15: 0000000000022000
INFO: task syz-executor.5:13965 blocked for more than 145 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27088 pid:13965 ppid: 6778 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1151
__down_write_common kernel/locking/rwsem.c:1268 [inline]
__down_write kernel/locking/rwsem.c:1277 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1524
filemap_invalidate_lock include/linux/fs.h:828 [inline]
blkdev_fallocate+0x21f/0x390 block/fops.c:625
vfs_fallocate+0x54a/0x930 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+0xb9/0x100 fs/open.c:336
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f327f94fae9
RSP: 002b:00007f327cec5188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f327fa62f60 RCX: 00007f327f94fae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f327f9a9f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000008800 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6498806f R14: 00007f327cec5300 R15: 0000000000022000
INFO: task syz-executor.0:13974 blocked for more than 145 seconds.
Not tainted 5.16.0-rc3-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26064 pid:13974 ppid: 10588 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
rwsem_down_write_slowpath+0xdb7/0x1480 kernel/locking/rwsem.c:1151
__down_write_common kernel/locking/rwsem.c:1268 [inline]
__down_write kernel/locking/rwsem.c:1277 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1524
filemap_invalidate_lock include/linux/fs.h:828 [inline]
blkdev_fallocate+0x21f/0x390 block/fops.c:625
vfs_fallocate+0x54a/0x930 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+0xb9/0x100 fs/open.c:336
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8f35852ae9
RSP: 002b:00007f8f32dc8188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f8f35965f60 RCX: 00007f8f35852ae9
RDX: 0000000000004000 RSI: 0000000000000011 RDI: 0000000000000005
RBP: 00007f8f358acf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000008800 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffca6c038f R14: 00007f8f32dc8300 R15: 0000000000022000
Showing all locks held in the system:
5 locks held by kworker/u4:0/8:
1 lock held by khungtaskd/26:
#0: ffffffff8cb1db40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
3 locks held by kworker/u4:3/240:
1 lock held by in:imklog/6205:
#0: ffff88807b756870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:990
2 locks held by agetty/6222:
#0: ffff888078a3f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc90002fc32e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2113
1 lock held by syz-executor.4/13958:
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline]
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:625
1 lock held by syz-executor.4/13963:
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline]
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:625
1 lock held by syz-executor.1/13956:
1 lock held by syz-executor.1/13981:
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline]
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:625
1 lock held by syz-executor.5/13965:
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline]
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:625
1 lock held by syz-executor.0/13974:
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:828 [inline]
#0: ffff888145a86788 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:625
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc3-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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 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+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6206 Comm: rs:main Q:Reg Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_preemption_disabled+0x5a/0x1c0
Code: 2d 23 34 f0 75 89 ee 81 e6 ff ff ff 7f 31 ff 0f 1f 44 00 00 81 e5 ff ff ff 7f 74 2a 0f 1f 44 00 00 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 0f 85 52 01 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5d
RSP: 0018:ffffc9000cd57278 EFLAGS: 00000002
RAX: f79275ceccf5b100 RBX: 0000000000000000 RCX: 0000000080000002
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1bfd196
R10: fffffbfff1bfd196 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff920019aae64 R14: ffffffff8a6f1000 R15: ffffffff8ad54960
FS: 00007f5e5bfff700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed72ccd000 CR3: 00000000726a1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lockdep_recursion_inc kernel/locking/lockdep.c:433 [inline]
lock_release+0x141/0x810 kernel/locking/lockdep.c:5656
__raw_write_unlock include/linux/rwlock_api_smp.h:216 [inline]
_raw_write_unlock+0x12/0x40 kernel/locking/spinlock.c:332
ext4_es_insert_delayed_block+0x4ec/0x5f0 fs/ext4/extents_status.c:2021
ext4_insert_delayed_block fs/ext4/inode.c:1671 [inline]
ext4_da_map_blocks fs/ext4/inode.c:1763 [inline]
ext4_da_get_block_prep+0x9a5/0x1410 fs/ext4/inode.c:1827
ext4_block_write_begin+0x6ca/0x1840 fs/ext4/inode.c:1078
ext4_da_write_begin+0x58c/0x9b0 fs/ext4/inode.c:2966
generic_perform_write+0x2dd/0x600 mm/filemap.c:3756
ext4_buffered_write_iter+0x391/0x520 fs/ext4/file.c:269
ext4_file_write_iter+0x8f7/0x1bd0
call_write_iter include/linux/fs.h:2162 [inline]
new_sync_write fs/read_write.c:503 [inline]
vfs_write+0xb11/0xe90 fs/read_write.c:590
ksys_write+0x18f/0x2c0 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f5e62f251cd
Code: c2 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ae fc ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 f7 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007f5e5bffe590 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f5e4c023580 RCX: 00007f5e62f251cd
RDX: 00000000000007c5 RSI: 00007f5e4c023580 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f5e4c023300
R13: 00007f5e5bffe5b0 R14: 000055fd54e1a360 R15: 00000000000007c5
----------------
Code disassembly (best guess):
0: 2d 23 34 f0 75 sub $0x75f03423,%eax
5: 89 ee mov %ebp,%esi
7: 81 e6 ff ff ff 7f and $0x7fffffff,%esi
d: 31 ff xor %edi,%edi
f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
14: 81 e5 ff ff ff 7f and $0x7fffffff,%ebp
1a: 74 2a je 0x46
1c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
21: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax
28: 00 00
* 2a: 48 3b 44 24 08 cmp 0x8(%rsp),%rax <-- trapping instruction
2f: 0f 85 52 01 00 00 jne 0x187
35: 89 d8 mov %ebx,%eax
37: 48 83 c4 10 add $0x10,%rsp
3b: 5b pop %rbx
3c: 41 5c pop %r12
3e: 41 5d pop %r13