RBP: 00007fd9702131d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fff24437a3f R14: 00007fd970213300 R15: 0000000000022000
INFO: task syz-executor.2:6871 blocked for more than 143 seconds.
Not tainted 6.16.0-rc6-next-20250718 #1
Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26392 pid:6871 tgid:6871 ppid:281 task_flags:0x40044c flags:0x00004004
Call Trace:
__schedule+0xe8d/0x35b0
schedule+0xdb/0x390
schedule_preempt_disabled+0x10/0x20
rwsem_down_read_slowpath+0x578/0xd00
down_read+0xec/0x470
do_exit+0x68f/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
exit_to_user_mode_loop+0x8b/0x100
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f34055cdb62
RSP: 002b:00007fffb3e40fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: fffffffffffffffc RBX: 0000000000020022 RCX: 00007f34055cdb62
RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000020022 R11: 0000000000000246 R12: 00007fffb3e411d0
R13: 00007f3403344700 R14: 0000000000000000 R15: 0000000000022000
INFO: task syz-executor.2:6871 blocked on an rw-semaphore likely owned by task syz-executor.2:6873
task:syz-executor.2 state:R running task stack:25200 pid:6873 tgid:6871 ppid:281 task_flags:0x400040 flags:0x00004006
Call Trace:
INFO: task syz-executor.2:6886 blocked for more than 143 seconds.
Not tainted 6.16.0-rc6-next-20250718 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:30080 pid:6886 tgid:6871 ppid:281 task_flags:0x400040 flags:0x00004004
Call Trace:
__schedule+0xe8d/0x35b0
schedule+0xdb/0x390
schedule_preempt_disabled+0x10/0x20
rwsem_down_write_slowpath+0x3c1/0x1380
down_write+0x1c2/0x1f0
do_mbind+0x23d/0xd70
kernel_mbind+0x1e7/0x200
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f34055cdb19
RSP: 002b:00007f3402b22188 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: ffffffffffffffda RBX: 00007f34056e1020 RCX: 00007f34055cdb19
RDX: 0000000000000002 RSI: 0000000000001000 RDI: 000000002086f000
RBP: 00007f3405627f6d R08: 0000000000000400 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb3e4104f R14: 00007f3402b22300 R15: 0000000000022000
INFO: task syz-executor.2:6886 blocked on an rw-semaphore likely owned by task syz-executor.2:6873
task:syz-executor.2 state:R running task stack:25200 pid:6873 tgid:6871 ppid:281 task_flags:0x400040 flags:0x00004006
Call Trace:
Showing all locks held in the system:
1 lock held by khungtaskd/32:
#0: ffffffff85c1d1e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0
1 lock held by in:imklog/175:
3 locks held by rs:main Q:Reg/176:
#0: ffff88806cf36f18 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x223/0x35b0
#1: ffffffff85c1d1e0 (rcu_read_lock){....}-{1:3}, at: futex_ref_get+0x48/0x300
#2: ffff888018f13338 (&sb->s_type->i_mutex_key#7){++++}-{4:4}, at: ext4_buffered_write_iter+0xab/0x430
1 lock held by syz-executor.2/6871:
#0: ffff88803db62160 (&mm->mmap_lock){++++}-{4:4}, at: do_exit+0x68f/0x2970
1 lock held by syz-executor.2/6873:
1 lock held by syz-executor.2/6886:
#0: ffff88803db62160 (&mm->mmap_lock){++++}-{4:4}, at: do_mbind+0x23d/0xd70
=============================================