INFO: task syz-executor.4:5068 blocked for more than 143 seconds.
Not tainted 6.5.0-syzkaller-12107-g7ba2090ca64e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:21352 pid:5068 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1873/0x48f0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
__super_lock fs/super.c:56 [inline]
__super_lock_excl fs/super.c:71 [inline]
deactivate_super+0xad/0xf0 fs/super.c:513
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1254
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7faa3f87de17
RSP: 002b:00007fff1d586798 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007faa3f87de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff1d586850
RBP: 00007fff1d586850 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff1d587910
R13: 00007faa3f8c73b9 R14: 00000000001aa5b8 R15: 000000000000000c
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.5.0-syzkaller-12107-g7ba2090ca64e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
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+0xdf5/0xe40 kernel/hung_task.c:379
kthread+0x2b8/0x350 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:304
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3791 Comm: kworker/u4:9 Not tainted 6.5.0-syzkaller-12107-g7ba2090ca64e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: 0x0 (loop4)
RIP: 0010:cfs_rq_clock_pelt kernel/sched/pelt.h:174 [inline]
RIP: 0010:update_load_avg+0x138/0x14b0 kernel/sched/fair.c:4468
Code: 00 00 48 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 ef e8 6a be 83 00 48 8b 6d 00 49 8d 9d c0 01 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 49 be 83 00 48 03 2b 49 29 ee 4c
RSP: 0018:ffffc9000d3dfa40 EFLAGS: 00000802
RAX: 1ffff110173278b0 RBX: ffff8880b993c580 RCX: dffffc0000000000
RDX: 0000000000000001 RSI: ffff88807c2e8800 RDI: ffff8880b993cd88
RBP: 0000000000000000 R08: ffffffff8e9a5f6f R09: 1ffffffff1d34bed
R10: dffffc0000000000 R11: fffffbfff1d34bee R12: dffffc0000000000
R13: ffff8880b993c3c0 R14: 000001a5436577ef R15: ffff88807c2e8800
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0009bed34 CR3: 000000002117c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
set_next_entity+0x10e/0x4c0 kernel/sched/fair.c:5177
pick_next_task_fair+0x36e/0xdc0 kernel/sched/fair.c:8195
__pick_next_task kernel/sched/core.c:6004 [inline]
pick_next_task kernel/sched/core.c:6079 [inline]
__schedule+0x7c6/0x48f0 kernel/sched/core.c:6659
schedule+0xc3/0x180 kernel/sched/core.c:6771
worker_thread+0xcad/0x1060 kernel/workqueue.c:2799
kthread+0x2b8/0x350 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:304