INFO: task syz-executor.1:30951 blocked for more than 143 seconds.
Not tainted 6.4.0-syzkaller-01312-gb19edac5992d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24448 pid:30951 ppid:5035 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
xlog_unmount_write fs/xfs/xfs_log.c:994 [inline]
xfs_log_unmount_write fs/xfs/xfs_log.c:1065 [inline]
xfs_log_clean+0x218/0xc10 fs/xfs/xfs_log.c:1117
xfs_mountfs+0x1723/0x1f10 fs/xfs/xfs_mount.c:950
xfs_fs_fill_super+0xfd7/0x1230 fs/xfs/xfs_super.c:1714
get_tree_bdev+0x468/0x6c0 fs/super.c:1319
vfs_get_tree+0x8c/0x270 fs/super.c:1520
do_new_mount+0x28f/0xae0 fs/namespace.c:3335
do_mount fs/namespace.c:3675 [inline]
__do_sys_mount fs/namespace.c:3884 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861
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: 0033:0x7fe905c8d8ba
RSP: 002b:00007fe90698df88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000000baee RCX: 00007fe905c8d8ba
RDX: 000000002000bb00 RSI: 000000002000bb40 RDI: 00007fe90698dfe0
RBP: 00007fe90698e020 R08: 00007fe90698e020 R09: 0000000000000003
R10: 0000000000000003 R11: 0000000000000202 R12: 000000002000bb00
R13: 000000002000bb40 R14: 00007fe90698dfe0 R15: 0000000020000080
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf27530 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf278f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/28:
#0: ffffffff8cf27360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:2/41:
2 locks held by getty/4752:
#0: ffff88814ac3c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1db0 drivers/tty/n_tty.c:2176
4 locks held by kworker/u4:7/5827:
1 lock held by syz-executor.1/30951:
#0: ffff88801e8380e0 (&type->s_umount_key#48/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
2 locks held by syz-executor.3/32400:
2 locks held by syz-executor.1/32402:
1 lock held by syz-executor.0/32404:
1 lock held by syz-executor.2/32406:
1 lock held by syz-executor.5/32408:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-syzkaller-01312-gb19edac5992d #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: 6336 Comm: kworker/u4:8 Not tainted 6.4.0-syzkaller-01312-gb19edac5992d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:67 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:103 [inline]
RIP: 0010:lock_acquire+0x176/0x520 kernel/locking/lockdep.c:5701
Code: 8d bc 24 80 00 00 00 4c 89 fb 48 c1 eb 03 42 80 3c 2b 00 74 08 4c 89 ff e8 77 8b 78 00 48 c7 84 24 80 00 00 00 00 00 00 00 9c <8f> 84 24 80 00 00 00 42 80 3c 2b 00 74 08 4c 89 ff e8 b4 8a 78 00
RSP: 0018:ffffc9001703fa78 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92002e07f60 RCX: ffffffff816b1474
RDX: 0000000000000000 RSI: ffffffff8b386f40 RDI: ffffffff8b386f00
RBP: ffffc9001703fbd8 R08: dffffc0000000000 R09: fffffbfff1cacace
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92002e07f58
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc9001703fb00
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f83455da000 CR3: 00000000352f1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_acquire+0x2e/0x40 include/linux/rcupdate.h:302
rcu_read_lock include/linux/rcupdate.h:748 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xc5/0x5c0 net/batman-adv/network-coding.c:719
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2408
worker_thread+0xa63/0x1210 kernel/workqueue.c:2555
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308