INFO: task syz-executor255:5058 blocked for more than 143 seconds.
Not tainted 6.6.0-syzkaller-14263-gaea6bf908d73 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor255 state:D stack:23344 pid:5058 tgid:5058 ppid:5056 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1960/0x4a80 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
io_schedule+0x8c/0x100 kernel/sched/core.c:8998
folio_wait_bit_common+0x881/0x12a0 mm/filemap.c:1273
folio_wait_locked include/linux/pagemap.h:1089 [inline]
gfs2_jhead_process_page+0x194/0x750 fs/gfs2/lops.c:477
gfs2_find_jhead+0x9c9/0xf10 fs/gfs2/lops.c:583
check_journal_clean+0x195/0x360 fs/gfs2/util.c:76
init_journal+0x186d/0x23e0 fs/gfs2/ops_fstype.c:827
init_inodes+0xdc/0x310 fs/gfs2/ops_fstype.c:885
gfs2_fill_super+0x1c6f/0x26c0 fs/gfs2/ops_fstype.c:1265
get_tree_bdev+0x416/0x5b0 fs/super.c:1598
gfs2_get_tree+0x54/0x210 fs/gfs2/ops_fstype.c:1345
vfs_get_tree+0x8c/0x280 fs/super.c:1771
do_new_mount+0x28f/0xae0 fs/namespace.c:3337
do_mount fs/namespace.c:3677 [inline]
__do_sys_mount fs/namespace.c:3886 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3863
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7ff688f2e16a
RSP: 002b:00007ffe6a1a0718 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe6a1a0730 RCX: 00007ff688f2e16a
RDX: 000000002001f680 RSI: 000000002001f6c0 RDI: 00007ffe6a1a0730
RBP: 0000000000000004 R08: 00007ffe6a1a0770 R09: 000000000001f672
R10: 0000000000000600 R11: 0000000000000282 R12: 0000000000000600
R13: 00007ffe6a1a0770 R14: 0000000000000003 R15: 0000000001000000
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d92d0a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92d0a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92d0a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6613
2 locks held by getty/4810:
#0: ffff88802ae3a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015b72f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor255/5058:
#0: ffff88801c6d80e0 (&type->s_umount_key#46){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88801c6d80e0 (&type->s_umount_key#46){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88801c6d80e0 (&type->s_umount_key#46){+.+.}-{3:3}, at: get_tree_bdev+0x36e/0x5b0 fs/super.c:1596
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.0-syzkaller-14263-gaea6bf908d73 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
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+0xfa9/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 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:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 12 Comm: kworker/u4:1 Not tainted 6.6.0-syzkaller-14263-gaea6bf908d73 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__lock_acquire+0xf00/0x7f70 kernel/locking/lockdep.c:5126
Code: 08 00 00 00 00 eb 06 b0 01 89 44 24 08 48 8b 44 24 18 42 0f b6 04 00 84 c0 4c 8b 6d 10 0f 85 27 0d 00 00 48 8b 04 24 44 8b 20 <4d> 85 ed 0f 84 9a 00 00 00 48 8b 44 24 68 42 0f b6 04 00 84 c0 0f
RSP: 0018:ffffc90000117160 EFLAGS: 00000046
RAX: ffff8880162764e8 RBX: 000000000006002a RCX: ffff888016276400
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90dca360
RBP: ffffc90000117428 R08: dffffc0000000000 R09: 1ffffffff21b946c
R10: dffffc0000000000 R11: fffffbfff21b946d R12: 0000000000020020
R13: 0000000000000000 R14: ffff8880162764c8 R15: 3743cc9e0976a91e
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562c0b566680 CR3: 000000000d730000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5753
rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
rcu_read_lock include/linux/rcupdate.h:747 [inline]
__pte_offset_map+0x9e/0x380 mm/pgtable-generic.c:285
__pte_offset_map_lock+0xc7/0x300 mm/pgtable-generic.c:369
get_locked_pte include/linux/mm.h:2671 [inline]
__text_poke+0x2c5/0xcd0 arch/x86/kernel/alternative.c:1820
text_poke arch/x86/kernel/alternative.c:1905 [inline]
text_poke_bp_batch+0x8c9/0xb20 arch/x86/kernel/alternative.c:2294
text_poke_flush arch/x86/kernel/alternative.c:2407 [inline]
text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2414
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
static_key_disable_cpuslocked+0xce/0x1b0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate+0x1b8/0x250 mm/kfence/core.c:835
process_one_work kernel/workqueue.c:2630 [inline]
process_scheduled_works+0x90f/0x1400 kernel/workqueue.c:2703
worker_thread+0xa5f/0xff0 kernel/workqueue.c:2784
kthread+0x2d3/0x370 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:242
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.558 msecs