INFO: task syz-executor.3:6737 blocked for more than 143 seconds.
Not tainted 6.1.90-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:22088 pid:6737 ppid:3576 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
io_schedule+0x88/0x100 kernel/sched/core.c:8786
__lock_metapage fs/jfs/jfs_metapage.c:50 [inline]
lock_metapage+0x250/0x370 fs/jfs/jfs_metapage.c:64
__get_metapage+0x50f/0x1040 fs/jfs/jfs_metapage.c:639
diIAGRead+0xcb/0x130 fs/jfs/jfs_imap.c:2669
diNewExt+0x26e6/0x37e0 fs/jfs/jfs_imap.c:2237
diAllocExt fs/jfs/jfs_imap.c:1949 [inline]
diAllocAG+0xbe4/0x1e50 fs/jfs/jfs_imap.c:1666
diAlloc+0x1cf/0x1750 fs/jfs/jfs_imap.c:1587
ialloc+0x8b/0x970 fs/jfs/jfs_inode.c:56
jfs_mkdir+0x1c1/0xbb0 fs/jfs/namei.c:225
vfs_mkdir+0x3b6/0x590 fs/namei.c:4108
do_mkdirat+0x225/0x360 fs/namei.c:4133
__do_sys_mkdir fs/namei.c:4153 [inline]
__se_sys_mkdir fs/namei.c:4151 [inline]
__x64_sys_mkdir+0x6a/0x80 fs/namei.c:4151
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa7b4c7dd29
RSP: 002b:00007fa7b5a7a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007fa7b4dabf80 RCX: 00007fa7b4c7dd29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000300
RBP: 00007fa7b4cca47e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa7b4dabf80 R15: 00007ffea13d1f28
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d12ae50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d12b650 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d12ac80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494
4 locks held by kworker/u4:4/63:
2 locks held by getty/3306:
#0: ffff8880283f4098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2188
4 locks held by syz-executor.3/6737:
#0: ffff888022a74460 (sb_writers#28){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 fs/namespace.c:393
#1: ffff8880702db3c0 (&type->i_mutex_dir_key#18/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline]
#1: ffff8880702db3c0 (&type->i_mutex_dir_key#18/1){+.+.}-{3:3}, at: filename_create+0x25c/0x530 fs/namei.c:3878
#2: ffff88801f270920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diAlloc+0x1b3/0x1750
#3: ffff8880702da638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diAllocExt fs/jfs/jfs_imap.c:1914 [inline]
#3: ffff8880702da638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diAllocAG+0x2b9/0x1e50 fs/jfs/jfs_imap.c:1666
3 locks held by kworker/u4:16/7581:
1 lock held by syz-executor.2/10381:
#0: ffffffff8d130140 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x5f0 kernel/rcu/tree.c:4018
2 locks held by syz-executor.4/10409:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.90-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
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: 63 Comm: kworker/u4:4 Not tainted 6.1.90-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: netns cleanup_net
RIP: 0010:debug_lockdep_rcu_enabled+0x25/0x30 kernel/rcu/update.c:281
Code: cc cc cc cc cc 31 c0 83 3d 67 c5 e8 03 00 74 1d 83 3d f2 f8 e8 03 00 74 14 65 48 8b 0d 44 b1 77 75 31 c0 83 b9 dc 0a 00 00 00 <0f> 94 c0 c3 cc cc cc cc cc cc cc 48 8b 3c 24 e8 57 fb ff ff 66 90
RSP: 0018:ffffc900015c7a38 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000037122 RCX: ffff888013b4bb80
RDX: 0000000000000000 RSI: 0000000000037122 RDI: 0000000000037122
RBP: ffffc900015c7b70 R08: ffffffff890828ba R09: fffffbfff2093645
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920002b8f62
R13: dffffc0000000000 R14: ffff8880295b8910 R15: 0000000000037122
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd777db4d58 CR3: 000000007f15c000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_unlock include/linux/rcupdate.h:820 [inline]
inet_twsk_purge+0x905/0xa40 net/ipv4/inet_timewait_sock.c:336
ops_exit_list net/core/net_namespace.c:174 [inline]
cleanup_net+0x763/0xb60 net/core/net_namespace.c:601
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308