INFO: task syz-executor424:3615 blocked for more than 143 seconds.
Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor424 state:D stack:25024 pid:3615 ppid:3607 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
inode_lock include/linux/fs.h:756 [inline]
lock_mount+0x8a/0x2e0 fs/namespace.c:2292
do_new_mount_fc fs/namespace.c:2983 [inline]
do_new_mount fs/namespace.c:3042 [inline]
path_mount+0x14c4/0x1e20 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b4093a
RSP: 002b:00007fff667a6238 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0d59b4093a
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff667a6250
RBP: 00007fff667a6250 R08: 00007fff667a6290 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fff667a6290 R14: 0000000000000039 R15: 0000000020000758
INFO: task syz-executor424:3617 blocked for more than 143 seconds.
Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor424 state:D stack:25024 pid:3617 ppid:3610 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
inode_lock include/linux/fs.h:756 [inline]
lock_mount+0x8a/0x2e0 fs/namespace.c:2292
do_new_mount_fc fs/namespace.c:2983 [inline]
do_new_mount fs/namespace.c:3042 [inline]
path_mount+0x14c4/0x1e20 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b4093a
RSP: 002b:00007fff667a6238 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0d59b4093a
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff667a6250
RBP: 00007fff667a6250 R08: 00007fff667a6290 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fff667a6290 R14: 0000000000000039 R15: 0000000020000758
INFO: task syz-executor424:3618 blocked for more than 144 seconds.
Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor424 state:D stack:25024 pid:3618 ppid:3611 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
inode_lock include/linux/fs.h:756 [inline]
lock_mount+0x8a/0x2e0 fs/namespace.c:2292
do_new_mount_fc fs/namespace.c:2983 [inline]
do_new_mount fs/namespace.c:3042 [inline]
path_mount+0x14c4/0x1e20 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b4093a
RSP: 002b:00007fff667a6238 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0d59b4093a
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff667a6250
RBP: 00007fff667a6250 R08: 00007fff667a6290 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fff667a6290 R14: 0000000000000039 R15: 0000000020000758
INFO: task syz-executor424:3619 blocked for more than 144 seconds.
Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor424 state:D stack:25024 pid:3619 ppid:3614 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0x5fc/0x12d0 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write_common kernel/locking/rwsem.c:1302 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x1e4/0x220 kernel/locking/rwsem.c:1563
inode_lock include/linux/fs.h:756 [inline]
lock_mount+0x8a/0x2e0 fs/namespace.c:2292
do_new_mount_fc fs/namespace.c:2983 [inline]
do_new_mount fs/namespace.c:3042 [inline]
path_mount+0x14c4/0x1e20 fs/namespace.c:3370
do_mount fs/namespace.c:3383 [inline]
__do_sys_mount fs/namespace.c:3591 [inline]
__se_sys_mount fs/namespace.c:3568 [inline]
__x64_sys_mount+0x27f/0x300 fs/namespace.c:3568
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b4093a
RSP: 002b:00007fff667a6238 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0d59b4093a
RDX: 00000000200000c0 RSI: 0000000020000100 RDI: 00007fff667a6250
RBP: 00007fff667a6250 R08: 00007fff667a6290 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000004
R13: 00007fff667a6290 R14: 0000000000000039 R15: 0000000020000758
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8bf87f70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8bf87c70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
#0: ffffffff8bf88ac0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
2 locks held by getty/3286:
#0: ffff888026fcb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
6 locks held by syz-executor424/3613:
1 lock held by syz-executor424/3615:
#0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x8a/0x2e0 fs/namespace.c:2292
6 locks held by syz-executor424/3616:
1 lock held by syz-executor424/3617:
#0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x8a/0x2e0 fs/namespace.c:2292
1 lock held by syz-executor424/3618:
#0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x8a/0x2e0 fs/namespace.c:2292
1 lock held by syz-executor424/3619:
#0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#0: ffff8880718c2f80 (&type->i_mutex_dir_key#6){+.+.}-{3:3}, at: lock_mount+0x8a/0x2e0 fs/namespace.c:2292
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 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+0xc71/0xfc0 kernel/hung_task.c:377
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3613 Comm: syz-executor424 Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:lock_is_held_type+0x51/0x140 kernel/locking/lockdep.c:5707
Code: 73 76 85 c0 0f 85 ca 00 00 00 65 4c 8b 24 25 80 6f 02 00 41 8b 94 24 4c 0a 00 00 85 d2 0f 85 b1 00 00 00 48 89 fd 41 89 f6 9c <8f> 04 24 fa 48 c7 c7 60 a5 ec 89 31 db e8 3d 15 00 00 41 8b 84 24
RSP: 0018:ffffc90003b9ec98 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90003b9edb0 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8bf88ac0
RBP: ffffffff8bf88ac0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888020708000
R13: 00000000ffffffff R14: 00000000ffffffff R15: 0000000000000000
FS: 0000555556c43300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a95b364990 CR3: 0000000076ea0000 CR4: 0000000000350ef0
Call Trace:
xa_entry include/linux/xarray.h:1198 [inline]
xas_descend+0x2a4/0x440 lib/xarray.c:204
xas_load+0xe5/0x140 lib/xarray.c:242
mapping_get_entry mm/filemap.c:1853 [inline]
__filemap_get_folio+0x14e/0xd90 mm/filemap.c:1915
pagecache_get_page+0x2e/0x280 mm/folio-compat.c:110
find_or_create_page include/linux/pagemap.h:613 [inline]
grab_cache_page include/linux/pagemap.h:743 [inline]
nilfs_grab_buffer+0xc5/0x680 fs/nilfs2/page.c:57
nilfs_mdt_submit_block+0xa4/0xb40 fs/nilfs2/mdt.c:121
nilfs_mdt_read_block+0x92/0x3c0 fs/nilfs2/mdt.c:176
nilfs_mdt_get_block+0xe3/0xe00 fs/nilfs2/mdt.c:251
nilfs_palloc_get_block+0xc4/0x2b0 fs/nilfs2/alloc.c:216
nilfs_palloc_get_entry_block+0x167/0x1d0 fs/nilfs2/alloc.c:318
nilfs_dat_translate+0x7e/0x470 fs/nilfs2/dat.c:391
nilfs_bmap_lookup_at_level+0x237/0x3e0 fs/nilfs2/bmap.c:75
nilfs_bmap_lookup fs/nilfs2/bmap.h:170 [inline]
nilfs_mdt_submit_block+0x1a1/0xb40 fs/nilfs2/mdt.c:142
nilfs_mdt_read_block+0x92/0x3c0 fs/nilfs2/mdt.c:176
nilfs_mdt_get_block+0xe3/0xe00 fs/nilfs2/mdt.c:251
nilfs_palloc_get_block+0xc4/0x2b0 fs/nilfs2/alloc.c:216
nilfs_palloc_get_entry_block+0x167/0x1d0 fs/nilfs2/alloc.c:318
nilfs_ifile_create_inode+0xec/0x260 fs/nilfs2/ifile.c:66
nilfs_new_inode+0x1ff/0x9b0 fs/nilfs2/inode.c:347
nilfs_create fs/nilfs2/namei.c:85 [inline]
nilfs_create+0xfe/0x300 fs/nilfs2/namei.c:75
lookup_open.isra.0+0xf05/0x12a0 fs/namei.c:3413
open_last_lookups fs/namei.c:3481 [inline]
path_openat+0x996/0x2860 fs/namei.c:3710
do_filp_open+0x1b6/0x400 fs/namei.c:3740
do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_openat fs/open.c:1342 [inline]
__se_sys_openat fs/open.c:1337 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0d59b3f509
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff667a63c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f0d59b3f509
RDX: 000000000000275a RSI: 0000000020000140 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0d59afe6b0
R13: 00007fff667a63f0 R14: 00007fff667a63dc R15: 00007fff667a63e0
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.477 msecs