INFO: task syz-executor333:4993 blocked for more than 143 seconds.
Not tainted 6.4.0-rc6-syzkaller-00037-gb6dad5178cea #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor333 state:D stack:23576 pid:4993 ppid:4992 flags:0x00004006
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
xlog_grant_head_wait+0x387/0x910 fs/xfs/xfs_log.c:307
xlog_grant_head_check+0x299/0x480
xfs_log_reserve+0x3c4/0xb10 fs/xfs/xfs_log.c:486
xfs_trans_reserve+0x239/0x6a0 fs/xfs/xfs_trans.c:194
xfs_trans_alloc+0x420/0x810 fs/xfs/xfs_trans.c:283
xfs_qm_qino_alloc+0x414/0xa30 fs/xfs/xfs_qm.c:779
xfs_qm_init_quotainos+0x622/0x8a0 fs/xfs/xfs_qm.c:1560
xfs_qm_init_quotainfo+0x11e/0x1280 fs/xfs/xfs_qm.c:643
xfs_qm_mount_quotas+0x9b/0x620 fs/xfs/xfs_qm.c:1444
xfs_mountfs+0x1865/0x1f10 fs/xfs/xfs_mount.c:959
xfs_fs_fill_super+0xfd7/0x1230 fs/xfs/xfs_super.c:1694
get_tree_bdev+0x405/0x620 fs/super.c:1303
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: 0033:0x7fded937a61a
RSP: 002b:00007ffda95d52b8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00646975756f6e2c RCX: 00007fded937a61a
RDX: 000000002000bb00 RSI: 0000000020000000 RDI: 00007ffda95d52d0
RBP: 00007ffda95d52d0 R08: 00007ffda95d5310 R09: 0000000000000002
R10: 0000000000008000 R11: 0000000000000206 R12: 0000000000000004
R13: 000055555578f2c0 R14: 0000000000008000 R15: 00007ffda95d5310
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/4744:
#0: ffff88814aec2098 (&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
2 locks held by syz-executor333/4993:
#0: ffff88807caf00e0 (&type->s_umount_key#42/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
#1: ffff88807caf0650 (sb_internal#2){.+.+}-{0:0}, at: xfs_qm_qino_alloc+0x414/0xa30 fs/xfs/xfs_qm.c:779
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc6-syzkaller-00037-gb6dad5178cea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
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: 12 Comm: kworker/u4:1 Not tainted 6.4.0-rc6-syzkaller-00037-gb6dad5178cea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline]
RIP: 0010:do_raw_spin_lock+0xd1/0x3a0 kernel/locking/spinlock_debug.c:114
Code: 24 30 80 3c 10 00 74 12 48 89 df e8 19 e1 76 00 48 ba 00 00 00 00 00 fc ff df 48 89 5c 24 20 48 8b 03 65 48 8b 0d 8f 41 97 7e <48> 89 4c 24 28 48 39 c8 0f 84 33 01 00 00 49 8d 5c 24 08 49 89 df
RSP: 0018:ffffc90000117ae0 EFLAGS: 00000046
RAX: ffffffffffffffff RBX: ffff888012e41010 RCX: ffff888015e45940
RDX: dffffc0000000000 RSI: 1ffff92000022f64 RDI: ffff888012e41000
RBP: ffffc90000117bb0 R08: dffffc0000000000 R09: fffffbfff206544e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888012e41000
R13: 1ffff92000022f78 R14: ffffc90000117be0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056546da15680 CR3: 000000000cd30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:120 [inline]
_raw_spin_lock_irq+0xdf/0x120 kernel/locking/spinlock.c:170
process_one_work+0xa59/0x10e0 kernel/workqueue.c:2433
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