INFO: task syz-executor237:4993 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-syzkaller-00026-gfb054096aea0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor237 state:D stack:23120 pid:4993 ppid:4992 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
io_schedule+0x8c/0x100 kernel/sched/core.c:8979
folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
folio_wait_locked include/linux/pagemap.h:1028 [inline]
gfs2_jhead_process_page+0x192/0x800 fs/gfs2/lops.c:476
gfs2_find_jhead+0x68c/0xef0 fs/gfs2/lops.c:583
check_journal_clean+0x195/0x360 fs/gfs2/util.c:75
init_journal+0x186d/0x23e0 fs/gfs2/ops_fstype.c:828
init_inodes+0xdc/0x310 fs/gfs2/ops_fstype.c:886
gfs2_fill_super+0x1d02/0x2840 fs/gfs2/ops_fstype.c:1250
get_tree_bdev+0x405/0x620 fs/super.c:1303
gfs2_get_tree+0x54/0x210 fs/gfs2/ops_fstype.c:1335
vfs_get_tree+0x8c/0x270 fs/super.c:1510
do_new_mount+0x28f/0xae0 fs/namespace.c:3039
do_mount fs/namespace.c:3382 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f420977f9ca
RSP: 002b:00007ffc653e9418 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f420977f9ca
RDX: 000000002001f680 RSI: 000000002001f6c0 RDI: 00007ffc653e9430
RBP: 00007ffc653e9430 R08: 00007ffc653e9470 R09: 0000000000000002
R10: 0000000000000600 R11: 0000000000000282 R12: 0000000000000004
R13: 000055555729c2c0 R14: 0000000000000600 R15: 00007ffc653e9470
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf276f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4746:
#0: ffff88814a907098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor237/4993:
#0: ffff88807d2780e0 (&type->s_umount_key#42/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc6-syzkaller-00026-gfb054096aea0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
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+0x187/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 61 Comm: kworker/u4:4 Not tainted 6.4.0-rc6-syzkaller-00026-gfb054096aea0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:insn_get_opcode+0x1aa/0xa50 arch/x86/lib/insn.c:272
Code: 01 48 8b 44 24 38 42 0f b6 04 28 84 c0 0f 85 5f 07 00 00 0f b6 2a 31 ff 89 ee e8 71 6c de f6 85 ed 74 2e e8 d8 69 de f6 eb 34 <4c> 89 e7 e8 ae e5 ff ff 41 89 c7 31 ff 89 c6 e8 72 6d de f6 45 85
RSP: 0018:ffffc90001577720 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff920002aef3b RCX: ffff888015683b80
RDX: ffff888015683b80 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8aad14ac R09: 0000000000000000
R10: ffffc900015779c0 R11: dffffc0000000001 R12: ffffc900015779c0
R13: dffffc0000000000 R14: ffffc900015779dc R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ebd3978fe8 CR3: 000000000cd30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
insn_get_modrm+0x22e/0x7a0 arch/x86/lib/insn.c:343
insn_get_sib arch/x86/lib/insn.c:421 [inline]
insn_get_displacement+0x13e/0x980 arch/x86/lib/insn.c:464
insn_get_immediate+0x382/0x13d0 arch/x86/lib/insn.c:632
insn_get_length arch/x86/lib/insn.c:707 [inline]
insn_decode+0x370/0x500 arch/x86/lib/insn.c:747
arch_jump_entry_size arch/x86/kernel/jump_label.c:24 [inline]
__jump_label_patch+0xe8/0x440 arch/x86/kernel/jump_label.c:45
arch_jump_label_transform_queue+0x4e/0xd0 arch/x86/kernel/jump_label.c:137
__jump_label_update+0x177/0x3a0 kernel/jump_label.c:475
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:836
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.090 msecs