INFO: task syz-executor.0:4087 blocked for more than 143 seconds.
Not tainted 6.1.0-rc1-next-20221020-syzkaller-02538-gacee3e83b493 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28744 pid:4087 ppid:4072 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
perf_event_free_task+0x518/0x6c0 kernel/events/core.c:13022
copy_process+0x329e/0x7230 kernel/fork.c:2532
kernel_clone+0xe7/0x980 kernel/fork.c:2667
__do_sys_clone+0xba/0x100 kernel/fork.c:2808
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x4665e9
RSP: 002b:00007fe2e3c21188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002124f700
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffc4823814f R14: 00007fe2e3c21300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc1-next-20221020-syzkaller-02538-gacee3e83b493 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc71/0xfc0 kernel/hung_task.c:377
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 92 Comm: kworker/u4:4 Not tainted 6.1.0-rc1-next-20221020-syzkaller-02538-gacee3e83b493 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x7/0x60 kernel/kcov.c:207
Code: 34 00 5d be 03 00 00 00 e9 e6 7b 88 02 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 61 11 87 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 40 97 03 00 a9
RSP: 0018:ffffc900015c79c0 EFLAGS: 00000246
RAX: 0000000080000000 RBX: ffffc900015c7a50 RCX: ffffffff894a1bbb
RDX: ffff888018569d40 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: ffffffff81c8af16 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe308a6f990 CR3: 000000000ba8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
insn_init+0x116/0x190 arch/x86/lib/insn.c:79
insn_decode+0x2b8/0x3b0 arch/x86/lib/insn.c:743
arch_jump_entry_size+0xa0/0x110 arch/x86/kernel/jump_label.c:24
__jump_label_patch+0x80/0x330 arch/x86/kernel/jump_label.c:45
arch_jump_label_transform_queue+0x63/0x100 arch/x86/kernel/jump_label.c:137
__jump_label_update+0x12e/0x410 kernel/jump_label.c:447
jump_label_update+0x32f/0x410 kernel/jump_label.c:801
static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207
__static_key_slow_dec_cpuslocked.part.0-0xa/0x60
toggle_allocation_gate mm/kfence/core.c:814 [inline]
toggle_allocation_gate+0x183/0x390 mm/kfence/core.c:792
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308