INFO: task syz.3.37:5476 blocked for more than 143 seconds.
Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.37 state:D stack:27392 pid:5476 tgid:5416 ppid:5226 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:815 [inline]
do_lock_mount+0x112/0x3a0 fs/namespace.c:2607
lock_mount fs/namespace.c:2649 [inline]
do_loopback+0x2be/0x520 fs/namespace.c:2772
do_mount fs/namespace.c:3847 [inline]
__do_sys_mount fs/namespace.c:4055 [inline]
__se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f89e357def9
RSP: 002b:00007f89e42f3038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f89e3736058 RCX: 00007f89e357def9
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000020000380
RBP: 00007f89e35f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f89e3736058 R15: 00007ffcdc86fce8
INFO: task syz.3.37:5478 blocked for more than 144 seconds.
Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.37 state:D stack:26896 pid:5478 tgid:5416 ppid:5226 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:815 [inline]
process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:572
security_file_post_open+0xb9/0x280 security/security.c:3127
do_open fs/namei.c:3776 [inline]
path_openat+0x2ccd/0x3590 fs/namei.c:3933
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_open fs/open.c:1438 [inline]
__se_sys_open fs/open.c:1434 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1434
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f89e357def9
RSP: 002b:00007f89e42d2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f89e3736130 RCX: 00007f89e357def9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200005c0
RBP: 00007f89e35f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f89e3736130 R15: 00007ffcdc86fce8
INFO: task syz.3.37:5479 blocked for more than 145 seconds.
Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.37 state:D stack:21184 pid:5479 tgid:5416 ppid:5226 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:815 [inline]
process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
ima_file_check+0xf2/0x170 security/integrity/ima/ima_main.c:572
security_file_post_open+0xb9/0x280 security/security.c:3127
do_open fs/namei.c:3776 [inline]
path_openat+0x2ccd/0x3590 fs/namei.c:3933
do_filp_open+0x235/0x490 fs/namei.c:3960
do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
do_sys_open fs/open.c:1430 [inline]
__do_sys_creat fs/open.c:1506 [inline]
__se_sys_creat fs/open.c:1500 [inline]
__x64_sys_creat+0x123/0x170 fs/open.c:1500
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f89e357def9
RSP: 002b:00007f89e42b1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f89e3736208 RCX: 00007f89e357def9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000340
RBP: 00007f89e35f0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f89e3736208 R15: 00007ffcdc86fce8
INFO: task syz.0.45:5475 blocked for more than 146 seconds.
Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.45 state:D stack:22848 pid:5475 tgid:5474 ppid:5221 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
wb_wait_for_completion+0x166/0x290 fs/fs-writeback.c:216
sync_inodes_sb+0x293/0xb40 fs/fs-writeback.c:2799
iterate_supers+0xc6/0x190 fs/super.c:934
ksys_sync+0xbd/0x1c0 fs/sync.c:102
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f58ebb7def9
RSP: 002b:00007f58ec8b4038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f58ebd35f80 RCX: 00007f58ebb7def9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f58ebbf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f58ebd35f80 R15: 00007ffe369e7c78
INFO: task syz.0.45:5480 blocked for more than 146 seconds.
Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.45 state:D stack:27392 pid:5480 tgid:5474 ppid:5221 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
iterate_supers+0xc6/0x190 fs/super.c:934
ksys_sync+0xbd/0x1c0 fs/sync.c:102
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f58ebb7def9
RSP: 002b:00007f58ec893038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f58ebd36058 RCX: 00007f58ebb7def9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f58ebbf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f58ebd36058 R15: 00007ffe369e7c78
INFO: task syz.0.45:5483 blocked for more than 147 seconds.
Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.45 state:D stack:27392 pid:5483 tgid:5474 ppid:5221 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
iterate_supers+0xc6/0x190 fs/super.c:934
ksys_sync+0xbd/0x1c0 fs/sync.c:102
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f58ebb7def9
RSP: 002b:00007f58eb5ff038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f58ebd36130 RCX: 00007f58ebb7def9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f58ebbf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f58ebd36130 R15: 00007ffe369e7c78
INFO: task syz.0.45:5485 blocked for more than 147 seconds.
Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.45 state:D stack:27392 pid:5485 tgid:5474 ppid:5221 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
iterate_supers+0xc6/0x190 fs/super.c:934
ksys_sync+0xbd/0x1c0 fs/sync.c:102
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f58ebb7def9
RSP: 002b:00007f58eb5de038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f58ebd36208 RCX: 00007f58ebb7def9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f58ebbf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f58ebd36208 R15: 00007ffe369e7c78
Showing all locks held in the system:
3 locks held by kworker/u8:1/12:
#0: ffff88801ea9a148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88801ea9a148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90000117d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90000117d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_trylock_shared+0x22/0xf0 fs/super.c:562
1 lock held by khungtaskd/31:
#0: ffffffff8e738a60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff8e738a60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8e738a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6701
4 locks held by kworker/u8:6/1168:
#0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff88801a889148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc9000421fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc9000421fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8fab0488 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
#3: ffffffff8e73de38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#3: ffffffff8e73de38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:965
2 locks held by kworker/u8:7/2497:
2 locks held by dhcpcd/4882:
#0: ffff888045fd86c8 (nlk_cb_mutex-ROUTE){+.+.}-{3:3}, at: __netlink_dump_start+0x119/0x790 net/netlink/af_netlink.c:2404
#1: ffffffff8fab0488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fab0488 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x99/0x200 net/core/rtnetlink.c:6505
2 locks held by getty/4970:
#0: ffff888034f2a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000311b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
5 locks held by syz.3.37/5417:
#0: ffff888011ad6420 (sb_writers#23){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff88805d730148 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#1: ffff88805d730148 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: do_truncate+0x20c/0x310 fs/open.c:63
#2: ffff88806ee00a18 (&c->snapshot_create_lock){.+.+}-{3:3}, at: bch2_truncate+0x16c/0x2c0 fs/bcachefs/io_misc.c:290
#3: ffff88806ee042c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:151 [inline]
#3: ffff88806ee042c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:250 [inline]
#3: ffff88806ee042c0 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7de/0xd20 fs/bcachefs/btree_iter.c:3200
#4: ffff88806ee26690 (&c->gc_lock){.+.+}-{3:3}, at: bch2_btree_update_start+0x682/0x14e0 fs/bcachefs/btree_update_interior.c:1197
1 lock held by syz.3.37/5476:
#0: ffff88805d730148 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88805d730148 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: do_lock_mount+0x112/0x3a0 fs/namespace.c:2607
1 lock held by syz.3.37/5478:
#0: ffff88805d730148 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff88805d730148 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
2 locks held by syz.3.37/5479:
#0: ffff888011ad6420 (sb_writers#23){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff88805d730148 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#1: ffff88805d730148 (&sb->s_type->i_mutex_key#29){+.+.}-{3:3}, at: process_measurement+0x439/0x1fb0 security/integrity/ima/ima_main.c:250
3 locks held by bch-reclaim/loo/5452:
2 locks held by syz.0.45/5475:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.45/5480:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.45/5483:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.45/5485:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.138/6288:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.138/6291:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.138/6292:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.138/6293:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.138/6295:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.205/6765:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.205/6768:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.205/6769:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.205/6770:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.205/6771:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.229/6913:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.229/6916:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.229/6917:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.229/6921:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.229/6923:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz-executor/7203:
#0: ffffffff8fb161b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
#1: ffffffff8fab0488 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x5f/0x8b0 net/wireless/nl80211.c:16580
2 locks held by syz.0.266/7415:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.266/7419:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.266/7421:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.266/7422:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.0.266/7426:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.267/7418:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.267/7430:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.267/7431:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.267/7434:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
2 locks held by syz.3.267/7435:
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888011ad60e0 (&type->s_umount_key#101){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:388 [inline]
#1: ffff8880286dc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x274/0xb40 fs/fs-writeback.c:2797
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5452 Comm: bch-reclaim/loo Not tainted 6.11.0-syzkaller-04557-g2f27fce67173 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:86 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x79/0x290 mm/kasan/generic.c:189
Code: 4d 89 c1 49 c1 e9 03 49 be 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 <4c> 89 cd 48 f7 d5 48 01 dd 41 80 3b 00 0f 85 c9 01 00 00 49 ff c3
RSP: 0018:ffffc9000431f478 EFLAGS: 00000002
RAX: 0000000000000001 RBX: 1ffffffff27ff32f RCX: ffffffff8170458a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff93ff9978
RBP: 0000000000000001 R08: ffffffff93ff997f R09: 1ffffffff27ff32f
R10: dffffc0000000000 R11: fffffbfff27ff32f R12: ffff8880258e0000
R13: dffffc0000000000 R14: dffffc0000000001 R15: fffffbfff27ff330
FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056414c70b000 CR3: 0000000074d64000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:228 [inline]
mark_lock+0x9a/0x360 kernel/locking/lockdep.c:4700
__lock_acquire+0x11b0/0x2050 kernel/locking/lockdep.c:5153
reacquire_held_locks+0x3eb/0x690 kernel/locking/lockdep.c:5347
__lock_release kernel/locking/lockdep.c:5536 [inline]
lock_release+0x396/0xa30 kernel/locking/lockdep.c:5843
__mutex_unlock_slowpath+0xe2/0x750 kernel/locking/mutex.c:912
btree_write_buffer_flush_seq+0x1a4e/0x1bc0 fs/bcachefs/btree_write_buffer.c:511
bch2_btree_write_buffer_journal_flush+0x4e/0x80 fs/bcachefs/btree_write_buffer.c:525
journal_flush_pins+0x5f7/0xb20 fs/bcachefs/journal_reclaim.c:565
__bch2_journal_reclaim+0x77d/0xe40 fs/bcachefs/journal_reclaim.c:697
bch2_journal_reclaim_thread+0x174/0x560 fs/bcachefs/journal_reclaim.c:739
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244