INFO: task syz-executor149:5098 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor149 state:D stack:27032 pid:5098 tgid:5098 ppid:5085 flags:0x20004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath kernel/locking/rwsem.c:1178 [inline]
__down_write_common+0x948/0x1400 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:847 [inline]
blk_ioctl_zeroout block/ioctl.c:184 [inline]
blkdev_common_ioctl+0x10df/0x1cd0 block/ioctl.c:513
compat_blkdev_ioctl+0x262/0x7c0 block/ioctl.c:687
__do_compat_sys_ioctl+0x2bf/0x330 fs/ioctl.c:972
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x62/0xe0 arch/x86/entry/common.c:321
do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346
entry_SYSENTER_compat_after_hwframe+0x70/0x7a
RIP: 0023:0xf7e7b579
RSP: 002b:00000000ffb1f97c EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000000127f
RDX: 0000000020000040 RSI: 00000000f7ef4f76 RDI: 000000005741acd0
RBP: 000000000004a892 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor149:5106 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor149 state:D stack:27280 pid:5106 tgid:5106 ppid:5086 flags:0x20004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath kernel/locking/rwsem.c:1178 [inline]
__down_write_common+0x948/0x1400 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:847 [inline]
blk_ioctl_zeroout block/ioctl.c:184 [inline]
blkdev_common_ioctl+0x10df/0x1cd0 block/ioctl.c:513
compat_blkdev_ioctl+0x262/0x7c0 block/ioctl.c:687
__do_compat_sys_ioctl+0x2bf/0x330 fs/ioctl.c:972
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x62/0xe0 arch/x86/entry/common.c:321
do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346
entry_SYSENTER_compat_after_hwframe+0x70/0x7a
RIP: 0023:0xf7e7b579
RSP: 002b:00000000ffb1f97c EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000000127f
RDX: 0000000020000040 RSI: 00000000f7ef4f76 RDI: 000000005741acd0
RBP: 000000000004a899 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8cfab760 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8cfab760 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8cfab760 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
3 locks held by kworker/1:2/55:
1 lock held by klogd/4511:
2 locks held by getty/4819:
#0: ffff88802a2aa0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
1 lock held by syz-executor149/5096:
1 lock held by syz-executor149/5098:
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x10df/0x1cd0 block/ioctl.c:513
1 lock held by syz-executor149/5106:
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x10df/0x1cd0 block/ioctl.c:513
1 lock held by syz-executor149/5107:
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x10df/0x1cd0 block/ioctl.c:513
1 lock held by syz-executor149/5114:
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x10df/0x1cd0 block/ioctl.c:513
1 lock held by syz-executor149/5115:
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:184 [inline]
#0: ffff888148c48940 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x10df/0x1cd0 block/ioctl.c:513
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4511 Comm: klogd Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0033:0x7f6a51ab4096
Code: 00 00 41 81 e4 ff 03 00 00 48 c7 44 24 20 00 00 00 00 31 c0 ba 01 00 00 00 48 c7 44 24 28 00 00 00 00 f0 0f b1 15 b2 c2 0d 00 <75> 16 8b 0d b2 41 0d 00 44 89 e0 83 e0 07 0f a3 c1 72 13 e9 eb 00
RSP: 002b:00007ffcc826f3e0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 00007f6a51c49212 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffffffffffff R12: 0000000000000006
R13: 00007f6a51c49212 R14: 00007ffcc826f4d8 R15: 0000000000000000
FS: 00007f6a51959380 GS: 0000000000000000