INFO: task syz-executor122:5067 blocked for more than 143 seconds.
Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor122 state:D stack:26736 pid:5067 tgid:5067 ppid:5063 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:847 [inline]
blkdev_fallocate+0x22a/0x570 block/fops.c:785
vfs_fallocate+0x551/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1806f33b29
RSP: 002b:00007ffe60635ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1806f33b29
RDX: 0000000000000c00 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0020000001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe60635dc8 R14: 00007ffe60635bd0 R15: 00007ffe60635bc0
INFO: task syz-executor122:5068 blocked for more than 143 seconds.
Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor122 state:D stack:26160 pid:5068 tgid:5068 ppid:5066 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:847 [inline]
blkdev_fallocate+0x22a/0x570 block/fops.c:785
vfs_fallocate+0x551/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1806f33b29
RSP: 002b:00007ffe60635ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1806f33b29
RDX: 0000000000000c00 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0020000001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe60635dc8 R14: 00007ffe60635bd0 R15: 00007ffe60635bc0
INFO: task syz-executor122:5087 blocked for more than 143 seconds.
Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor122 state:D stack:24536 pid:5087 tgid:5087 ppid:5058 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
filemap_invalidate_lock include/linux/fs.h:847 [inline]
blkdev_fallocate+0x22a/0x570 block/fops.c:785
vfs_fallocate+0x551/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1806f33b29
RSP: 002b:00007ffe60635ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1806f33b29
RDX: 0000000000000c00 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0020000001002000 R11: 0000000000000246 R12: 000000000000e000
R13: 00007ffe60635bbc R14: 00007ffe60635bd0 R15: 00007ffe60635bc0
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by klogd/4501:
2 locks held by getty/4809:
#0: ffff888026dc40a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015d72f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor122/5064:
1 lock held by syz-executor122/5067:
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x570 block/fops.c:785
1 lock held by syz-executor122/5068:
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x570 block/fops.c:785
1 lock held by syz-executor122/5087:
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x570 block/fops.c:785
1 lock held by syz-executor122/5088:
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x570 block/fops.c:785
1 lock held by syz-executor122/5095:
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff888148c8abc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x22a/0x570 block/fops.c:785
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #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+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 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+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2861 Comm: kworker/u4:10 Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:rcu_is_watching+0x70/0xb0 kernel/rcu/tree.c:702
Code: c3 08 6c 03 00 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 1e 8b 03 65 ff 0d e1 18 8d 7e 74 0c 83 e0 04 c1 e8 02 5b <41> 5e 41 5f c3 e8 d6 e6 89 ff eb ed 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9000b9b7948 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff816c5e6d
RDX: 0000000000000000 RSI: ffffffff8bbde080 RDI: ffffffff8bbde040
RBP: ffffc9000b9b7ad8 R08: ffffffff8f00c0ef R09: 1ffffffff1e0181d
R10: dffffc0000000000 R11: fffffbfff1e0181e R12: dffffc0000000000
R13: ffffffff8d9d30e0 R14: ffffffff8d348940 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f34aaef6580 CR3: 000000000d731000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_contention_end+0x3c/0x100 include/trace/events/lock.h:122
__mutex_lock_common kernel/locking/mutex.c:612 [inline]
__mutex_lock+0x2e4/0xd60 kernel/locking/mutex.c:747
jump_label_lock kernel/jump_label.c:27 [inline]
static_key_disable_cpuslocked+0x9b/0x1b0 kernel/jump_label.c:233
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate+0x1b8/0x250 mm/kfence/core.c:835
process_one_work kernel/workqueue.c:2627 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2700
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2781
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242