INFO: task syz-executor659:3595 can't die for more than 143 seconds.
task:syz-executor659 state:D stack:26560 pid: 3595 ppid: 3594 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5106 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6415
schedule+0xd2/0x1f0 kernel/sched/core.c:6487
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
xfs_buf_iowait+0xd5/0x5f0 fs/xfs/xfs_buf.c:1577
__xfs_buf_submit+0x4b5/0x840 fs/xfs/xfs_buf.c:1657
xfs_buf_submit fs/xfs/xfs_buf.c:59 [inline]
xfs_buf_read_uncached+0x20d/0x380 fs/xfs/xfs_buf.c:891
xfs_readsb+0x318/0x630 fs/xfs/xfs_mount.c:179
xfs_fs_fill_super+0x72e/0x1d90 fs/xfs/xfs_super.c:1491
get_tree_bdev+0x440/0x760 fs/super.c:1292
vfs_get_tree+0x89/0x2f0 fs/super.c:1497
do_new_mount fs/namespace.c:3040 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb0457483d9
RSP: 002b:00007fff3e788528 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fb0457483d9
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00000000200000c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff3e7886c8
R10: 0000000000008002 R11: 0000000000000246 R12: 00007fb0457076f0
R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor659:3595 blocked for more than 143 seconds.
Not tainted 5.17.0-next-20220401-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor659 state:D stack:26560 pid: 3595 ppid: 3594 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5106 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6415
schedule+0xd2/0x1f0 kernel/sched/core.c:6487
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
xfs_buf_iowait+0xd5/0x5f0 fs/xfs/xfs_buf.c:1577
__xfs_buf_submit+0x4b5/0x840 fs/xfs/xfs_buf.c:1657
xfs_buf_submit fs/xfs/xfs_buf.c:59 [inline]
xfs_buf_read_uncached+0x20d/0x380 fs/xfs/xfs_buf.c:891
xfs_readsb+0x318/0x630 fs/xfs/xfs_mount.c:179
xfs_fs_fill_super+0x72e/0x1d90 fs/xfs/xfs_super.c:1491
get_tree_bdev+0x440/0x760 fs/super.c:1292
vfs_get_tree+0x89/0x2f0 fs/super.c:1497
do_new_mount fs/namespace.c:3040 [inline]
path_mount+0x1320/0x1fa0 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fb0457483d9
RSP: 002b:00007fff3e788528 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fb0457483d9
RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00000000200000c0
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff3e7886c8
R10: 0000000000008002 R11: 0000000000000246 R12: 00007fb0457076f0
R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
2 locks held by kworker/u4:1/11:
#0: ffff8880b9c39fd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:541
#1: ffff8880b9c278c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x176/0x4e0 kernel/sched/psi.c:880
1 lock held by khungtaskd/28:
#0: ffffffff8bd82560 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6498
1 lock held by klogd/2922:
#0: ffff8880b9c39fd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:541
2 locks held by getty/3251:
#0: ffff88801db6a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002e632e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
1 lock held by syz-executor659/3595:
#0: ffff88801e2360e0 (&type->s_umount_key#42/1){+.+.}-{3:3}, at: alloc_super+0x1dd/0xa80 fs/super.c:228
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.17.0-next-20220401-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:256 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:413
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 11 Comm: kworker/u4:1 Not tainted 5.17.0-next-20220401-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:check_kcov_mode+0x7/0x40 kernel/kcov.c:166
Code: 00 e9 59 fe ff ff 48 8b 7c 24 08 e8 83 b3 4b 00 e9 61 fd ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc 65 8b 05 19 4c 89 7e <89> c2 81 e2 00 01 00 00 a9 00 01 ff 00 74 10 31 c0 85 d2 74 15 8b
RSP: 0018:ffffc900001079b0 EFLAGS: 00000046
RAX: 0000000080000001 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888010eeba80 RSI: ffff888010eeba80 RDI: 0000000000000003
RBP: ffff888140169558 R08: 0000000000000000 R09: 0000000000000003
R10: ffffffff817f6fdd R11: 0000000000000001 R12: ffffffff81c467a3
R13: 0000000000000001 R14: 00000000000007a4 R15: 8000000000000063
FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff8a3f7228 CR3: 000000000ba8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
write_comp_data kernel/kcov.c:221 [inline]
__sanitizer_cov_trace_const_cmp4+0x1c/0x70 kernel/kcov.c:287
trace_hardirqs_off+0x4d/0x1b0 kernel/trace/trace_preemptirq.c:81
__text_poke+0x61c/0x8c0 arch/x86/kernel/alternative.c:1045
text_poke arch/x86/kernel/alternative.c:1121 [inline]
text_poke_bp_batch+0x13c/0x6b0 arch/x86/kernel/alternative.c:1369
text_poke_flush arch/x86/kernel/alternative.c:1542 [inline]
text_poke_flush arch/x86/kernel/alternative.c:1539 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1549
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32f/0x410 kernel/jump_label.c:830
static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207
static_key_disable+0x16/0x20 kernel/jump_label.c:215
toggle_allocation_gate mm/kfence/core.c:799 [inline]
toggle_allocation_gate+0x183/0x390 mm/kfence/core.c:777
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.169 msecs
----------------
Code disassembly (best guess), 1 bytes skipped:
0: e9 59 fe ff ff jmpq 0xfffffe5e
5: 48 8b 7c 24 08 mov 0x8(%rsp),%rdi
a: e8 83 b3 4b 00 callq 0x4bb392
f: e9 61 fd ff ff jmpq 0xfffffd75
14: cc int3
15: cc int3
16: cc int3
17: cc int3
18: cc int3
19: cc int3
1a: cc int3
1b: cc int3
1c: cc int3
1d: cc int3
1e: cc int3
1f: cc int3
20: cc int3
21: cc int3
22: 65 8b 05 19 4c 89 7e mov %gs:0x7e894c19(%rip),%eax # 0x7e894c42
* 29: 89 c2 mov %eax,%edx <-- trapping instruction
2b: 81 e2 00 01 00 00 and $0x100,%edx
31: a9 00 01 ff 00 test $0xff0100,%eax
36: 74 10 je 0x48
38: 31 c0 xor %eax,%eax
3a: 85 d2 test %edx,%edx
3c: 74 15 je 0x53
3e: 8b .byte 0x8b