INFO: task syz-executor395:5073 blocked for more than 143 seconds.
Not tainted 6.7.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor395 state:D stack:28208 pid:5073 tgid:5073 ppid:5070 flags:0x00004006
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]
blkdev_fallocate+0x1e9/0x450 block/fops.c:785
vfs_fallocate+0x46c/0xe50 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+0xd5/0x140 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f3abff80b29
RSP: 002b:00007ffd5407dd08 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3abff80b29
RDX: 0000000000000c00 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0020000001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd5407df28 R14: 00007ffd5407dd30 R15: 00007ffd5407dd20
INFO: task syz-executor395:5076 blocked for more than 143 seconds.
Not tainted 6.7.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor395 state:D stack:28208 pid:5076 tgid:5076 ppid:5074 flags:0x00004006
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]
blkdev_fallocate+0x1e9/0x450 block/fops.c:785
vfs_fallocate+0x46c/0xe50 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+0xd5/0x140 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f3abff80b29
RSP: 002b:00007ffd5407dd08 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3abff80b29
RDX: 0000000000000c00 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0020000001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd5407df28 R14: 00007ffd5407dd30 R15: 00007ffd5407dd20
INFO: task syz-executor395:5078 blocked for more than 143 seconds.
Not tainted 6.7.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor395 state:D stack:27920 pid:5078 tgid:5078 ppid:5077 flags:0x00004006
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]
blkdev_fallocate+0x1e9/0x450 block/fops.c:785
vfs_fallocate+0x46c/0xe50 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+0xd5/0x140 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f3abff80b29
RSP: 002b:00007ffd5407dd08 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3abff80b29
RDX: 0000000000000c00 RSI: 0000000000000011 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 00000000000000a0 R09: 00000000000000a0
R10: 0020000001002000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd5407df28 R14: 00007ffd5407dd30 R15: 00007ffd5407dd20
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
2 locks held by getty/4825:
#0: ffff888029ff20a0 (&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-executor395/5073:
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 block/fops.c:785
1 lock held by syz-executor395/5075:
1 lock held by syz-executor395/5076:
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 block/fops.c:785
1 lock held by syz-executor395/5078:
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 block/fops.c:785
1 lock held by syz-executor395/5097:
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 block/fops.c:785
1 lock held by syz-executor395/5104:
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:847 [inline]
#0: ffff88801b6759c0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1e9/0x450 block/fops.c:785
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc7-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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 987 Comm: kworker/u4:5 Not tainted 6.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: 36 5f da 02 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1e fa 65 48 8b 14 25 c0 bc 03 00 65 8b 05 e4 4a 7c 7e a9 00
RSP: 0018:ffffc9000468fa90 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff90b3235a RCX: ffffffff812fd54d
RDX: ffff88801e139dc0 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 0000000000000005 R08: 0000000000000004 R09: 0000000000000005
R10: 0000000000000005 R11: 0000000000000006 R12: 00000000000000e9
R13: 0000000000000005 R14: dffffc0000000000 R15: 0000000000000005
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3abffc901d CR3: 000000000cd77000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
text_poke_bp_batch+0x530/0x750 arch/x86/kernel/alternative.c:2308
text_poke_flush arch/x86/kernel/alternative.c:2417 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2414 [inline]
text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2424
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x1d7/0x400 kernel/jump_label.c:829
static_key_enable_cpuslocked+0x1b7/0x270 kernel/jump_label.c:205
static_key_enable+0x1a/0x20 kernel/jump_label.c:218
toggle_allocation_gate mm/kfence/core.c:830 [inline]
toggle_allocation_gate+0xf4/0x250 mm/kfence/core.c:822
process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
process_scheduled_works kernel/workqueue.c:2700 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
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
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.369 msecs