INFO: task syz-executor346:3626 blocked for more than 143 seconds.
Not tainted 6.0.0-rc7-syzkaller-00068-g49c13ed0316d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor346 state:D stack:26328 pid: 3626 ppid: 3622 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
rwsem_down_write_slowpath+0xf1c/0x1350 kernel/locking/rwsem.c:1182
__down_write_common kernel/locking/rwsem.c:1297 [inline]
__down_write kernel/locking/rwsem.c:1306 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1553
filemap_invalidate_lock include/linux/fs.h:801 [inline]
blkdev_fallocate+0x21f/0x390 block/fops.c:641
vfs_fallocate+0x515/0x670 fs/open.c:323
ksys_fallocate fs/open.c:346 [inline]
__do_sys_fallocate fs/open.c:354 [inline]
__se_sys_fallocate fs/open.c:352 [inline]
__x64_sys_fallocate+0xb9/0x100 fs/open.c:352
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f22ece8ee09
RSP: 002b:00007ffca874b768 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f22ece8ee09
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00400000000000a2 R11: 0000000000000246 R12: 00007f22ece525e0
R13: 0000000000000000 R14: 00007ffca874b790 R15: 00007ffca874b780
INFO: task syz-executor346:3627 blocked for more than 143 seconds.
Not tainted 6.0.0-rc7-syzkaller-00068-g49c13ed0316d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor346 state:D stack:26328 pid: 3627 ppid: 3623 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
rwsem_down_write_slowpath+0xf1c/0x1350 kernel/locking/rwsem.c:1182
__down_write_common kernel/locking/rwsem.c:1297 [inline]
__down_write kernel/locking/rwsem.c:1306 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1553
filemap_invalidate_lock include/linux/fs.h:801 [inline]
blkdev_fallocate+0x21f/0x390 block/fops.c:641
vfs_fallocate+0x515/0x670 fs/open.c:323
ksys_fallocate fs/open.c:346 [inline]
__do_sys_fallocate fs/open.c:354 [inline]
__se_sys_fallocate fs/open.c:352 [inline]
__x64_sys_fallocate+0xb9/0x100 fs/open.c:352
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f22ece8ee09
RSP: 002b:00007ffca874b768 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f22ece8ee09
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00400000000000a2 R11: 0000000000000246 R12: 00007f22ece525e0
R13: 0000000000000000 R14: 00007ffca874b790 R15: 00007ffca874b780
INFO: task syz-executor346:3643 blocked for more than 143 seconds.
Not tainted 6.0.0-rc7-syzkaller-00068-g49c13ed0316d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor346 state:D stack:26328 pid: 3643 ppid: 3616 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
rwsem_down_write_slowpath+0xf1c/0x1350 kernel/locking/rwsem.c:1182
__down_write_common kernel/locking/rwsem.c:1297 [inline]
__down_write kernel/locking/rwsem.c:1306 [inline]
down_write+0x163/0x170 kernel/locking/rwsem.c:1553
filemap_invalidate_lock include/linux/fs.h:801 [inline]
blkdev_fallocate+0x21f/0x390 block/fops.c:641
vfs_fallocate+0x515/0x670 fs/open.c:323
ksys_fallocate fs/open.c:346 [inline]
__do_sys_fallocate fs/open.c:354 [inline]
__se_sys_fallocate fs/open.c:352 [inline]
__x64_sys_fallocate+0xb9/0x100 fs/open.c:352
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f22ece8ee09
RSP: 002b:00007ffca874b768 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f22ece8ee09
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00400000000000a2 R11: 0000000000000246 R12: 000000000000a318
R13: 00007ffca874b77c R14: 00007ffca874b790 R15: 00007ffca874b780
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cb233f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cb23bf0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/29:
#0: ffffffff8cb23220 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3289:
#0: ffff88814b3b3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
1 lock held by syz-executor346/3624:
1 lock held by syz-executor346/3626:
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:801 [inline]
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:641
1 lock held by syz-executor346/3627:
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:801 [inline]
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:641
1 lock held by syz-executor346/3643:
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:801 [inline]
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:641
1 lock held by syz-executor346/3645:
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:801 [inline]
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:641
1 lock held by syz-executor346/3652:
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:801 [inline]
#0: ffff888140c13fc0 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x21f/0x390 block/fops.c:641
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc7-syzkaller-00068-g49c13ed0316d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x425/0x450 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:369
kthread+0x266/0x300 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: 2964 Comm: klogd Not tainted 6.0.0-rc7-syzkaller-00068-g49c13ed0316d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:121 [inline]
RIP: 0010:rcu_is_watching+0x51/0xb0 kernel/rcu/tree.c:718
Code: 38 60 8c 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 a0 99 69 00 48 c7 c3 60 4a 03 00 49 03 1e 48 89 d8 48 c1 e8 03 <42> 8a 04 38 84 c0 75 1e 8b 03 65 ff 0d c6 8a 91 7e 74 0c 83 e0 04
RSP: 0018:ffffc90002b6efe0 EFLAGS: 00000802
RAX: 1ffff1101734694c RBX: ffff8880b9a34a60 RCX: ffff88807e7ebb00
RDX: 0000000000000000 RSI: ffffffff8aec54a0 RDI: ffffffff8aec5460
RBP: ffffc90002b6f088 R08: dffffc0000000000 R09: fffffbfff1c1651e
R10: fffffbfff1c1651e R11: 1ffffffff1c1651d R12: dffffc0000000000
R13: 1ffff9200056de40 R14: ffffffff8c603840 R15: dffffc0000000000
FS: 00007f9e74d66800(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559e684bcfb8 CR3: 0000000025e24000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x69/0x110 kernel/rcu/update.c:123
trace_lock_release+0x7b/0x1a0 include/trace/events/lock.h:69
lock_release+0x81/0x820 kernel/locking/lockdep.c:5677
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x75/0x120 kernel/locking/spinlock.c:194
__debug_check_no_obj_freed lib/debugobjects.c:999 [inline]
debug_check_no_obj_freed+0x5c2/0x650 lib/debugobjects.c:1020
free_pages_prepare mm/page_alloc.c:1455 [inline]
free_pcp_prepare+0x2cc/0x900 mm/page_alloc.c:1499
free_unref_page_prepare mm/page_alloc.c:3380 [inline]
free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3476
free_slab mm/slub.c:2073 [inline]
discard_slab mm/slub.c:2079 [inline]
__unfreeze_partials+0x1ab/0x200 mm/slub.c:2553
put_cpu_partial+0x106/0x170 mm/slub.c:2629
qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x169/0x180 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:447
kasan_slab_alloc include/linux/kasan.h:224 [inline]
slab_post_alloc_hook mm/slab.h:727 [inline]
slab_alloc_node mm/slub.c:3248 [inline]
kmem_cache_alloc_node+0x1cc/0x350 mm/slub.c:3298
__alloc_skb+0xcf/0x2b0 net/core/skbuff.c:422
alloc_skb include/linux/skbuff.h:1257 [inline]
alloc_skb_with_frags+0xaf/0x810 net/core/skbuff.c:6021
sock_alloc_send_pskb+0x938/0xa70 net/core/sock.c:2665
unix_dgram_sendmsg+0x5ab/0x2010 net/unix/af_unix.c:1912
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
__sys_sendto+0x46e/0x5f0 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9e74f020ac
Code: 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 19 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 64 c3 0f 1f 00 55 48 83 ec 20 48 89 54 24 10
RSP: 002b:00007ffd4bf39868 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9e74f020ac
RDX: 000000000000003a RSI: 00005581db59ed70 RDI: 0000000000000003
RBP: 00005581db59a910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000014
R13: 0000000000000001 R14: 00007f9e7507d77d R15: 00007ffd4bf39978
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.602 msecs