INFO: task kworker/1:14:28657 blocked for more than 151 seconds.
Not tainted 6.8.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:14 state:D stack:22832 pid:28657 tgid:28657 ppid:2 flags:0x00004000
Workqueue: gfs2_recovery gfs2_recover_func
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
io_schedule+0x8c/0x110 kernel/sched/core.c:9023
folio_wait_bit_common+0x881/0x12b0 mm/filemap.c:1274
folio_wait_locked include/linux/pagemap.h:1123 [inline]
gfs2_jhead_process_page+0x194/0x750 fs/gfs2/lops.c:470
gfs2_find_jhead+0x9c9/0xf10 fs/gfs2/lops.c:576
gfs2_recover_func+0x6c1/0x1f20 fs/gfs2/recovery.c:460
process_one_work kernel/workqueue.c:2633 [inline]
process_scheduled_works+0x915/0x1420 kernel/workqueue.c:2706
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
kthread+0x2f1/0x390 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
INFO: task syz-executor.1:4951 blocked for more than 151 seconds.
Not tainted 6.8.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23192 pid:4951 tgid:4949 ppid:2785 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x17d1/0x49f0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
bit_wait+0x12/0xd0 kernel/sched/wait_bit.c:199
__wait_on_bit+0xb2/0x2f0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x1d4/0x260 kernel/sched/wait_bit.c:64
wait_on_bit include/linux/wait_bit.h:76 [inline]
gfs2_recover_journal+0xf2/0x160 fs/gfs2/recovery.c:577
init_journal+0x1845/0x23f0 fs/gfs2/ops_fstype.c:831
init_inodes+0xdc/0x320 fs/gfs2/ops_fstype.c:884
gfs2_fill_super+0x1edb/0x26c0 fs/gfs2/ops_fstype.c:1263
get_tree_bdev+0x3f9/0x570 fs/super.c:1614
gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1341
vfs_get_tree+0x92/0x2a0 fs/super.c:1779
do_new_mount+0x2be/0xb40 fs/namespace.c:3352
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f3c7ea7f4aa
RSP: 002b:00007f3c7f750ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3c7f750f80 RCX: 00007f3c7ea7f4aa
RDX: 0000000020021140 RSI: 0000000020021180 RDI: 00007f3c7f750f40
RBP: 0000000020021140 R08: 00007f3c7f750f80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020021180
R13: 00007f3c7f750f40 R14: 000000000002117f R15: 00000000200002c0
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e130be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4825:
#0: ffff88802f5580a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by kworker/1:14/28657:
#0: ffff888016339538 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#0: ffff888016339538 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1: ffffc9000a3a7d20 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2608 [inline]
#1: ffffc9000a3a7d20 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
2 locks held by kworker/u4:5/2784:
1 lock held by syz-executor.1/4951:
#0: ffff888042efa0e0 (&type->s_umount_key#108/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:343
3 locks held by syz-executor.3/6573:
#0: ffffffff8e8d37a8 (tty_mutex){+.+.}-{3:3}, at: tty_open_by_driver drivers/tty/tty_io.c:2052 [inline]
#0: ffffffff8e8d37a8 (tty_mutex){+.+.}-{3:3}, at: tty_open+0x23e/0xdf0 drivers/tty/tty_io.c:2135
#1: ffff88802a74b1c0 (&tty->legacy_mutex){+.+.}-{3:3}, at: tty_init_dev+0x78/0x4c0 drivers/tty/tty_io.c:1421
#2: ffffffff8e00c780 (console_lock){+.+.}-{0:0}, at: con_install+0x99/0x7f0 drivers/tty/vt/vt.c:3337
2 locks held by syz-executor.2/6586:
4 locks held by syz-executor.4/6593:
2 locks held by syz-executor.0/6596:
1 lock held by syz-executor.5/6595:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 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+0x2f1/0x390 kernel/kthread.c:388
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4502 Comm: syslogd Not tainted 6.8.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:42 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:235 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp4+0x8/0x90 kernel/kcov.c:278
Code: 0a 20 e9 ab b2 de 09 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 15 e0 4f 70 7e 65 8b 05 e1 4f 70 7e a9 00 01 ff 00 74 10
RSP: 0018:ffffc9000315f420 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88802f095940
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc9000315f500 R08: ffffffff81406aca R09: ffffffff814066c0
R10: 0000000000000003 R11: ffff88802f095940 R12: ffffc9000315fb58
R13: dffffc0000000000 R14: 0000000000000001 R15: 1ffff9200062bea0
FS: 00007f06c5a6d380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007effc123ff38 CR3: 000000002ca2a000 CR4: 0000000000350ef0
Call Trace:
unwind_next_frame+0x1d7a/0x29e0 arch/x86/kernel/unwind_orc.c:664
arch_stack_walk+0x150/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:589
poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2121 [inline]
slab_free mm/slub.c:4299 [inline]
kmem_cache_free+0x102/0x2a0 mm/slub.c:4363
__unix_dgram_recvmsg+0xcbc/0x12c0 net/unix/af_unix.c:2453
sock_recvmsg_nosec net/socket.c:1046 [inline]
sock_recvmsg+0x231/0x280 net/socket.c:1068
sock_read_iter+0x2ca/0x3e0 net/socket.c:1138
call_read_iter include/linux/fs.h:2081 [inline]
new_sync_read fs/read_write.c:395 [inline]
vfs_read+0x97a/0xb70 fs/read_write.c:476
ksys_read+0x1a0/0x2c0 fs/read_write.c:619
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f06c5bc1b6a
Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd1331c518 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f06c5bc1b6a
RDX: 00000000000000ff RSI: 0000563b33749950 RDI: 0000000000000000
RBP: 0000563b33749910 R08: 0000000000000001 R09: 0000000000000000
R10: 00007f06c5d603a3 R11: 0000000000000246 R12: 0000563b337499a3
R13: 0000563b33749950 R14: 0000000000000000 R15: 00007f06c5d9ea80