IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
8021q: adding VLAN 0 to HW filter on device batadv0
8021q: adding VLAN 0 to HW filter on device batadv0
=====================================================
WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
4.19.57 #30 Not tainted
-----------------------------------------------------
syz-executor.3/8131 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
00000000110d9ec2 (&ctx->fd_wqh){....}, at: spin_lock include/linux/spinlock.h:329 [inline]
00000000110d9ec2 (&ctx->fd_wqh){....}, at: aio_poll fs/aio.c:1741 [inline]
00000000110d9ec2 (&ctx->fd_wqh){....}, at: __io_submit_one fs/aio.c:1849 [inline]
00000000110d9ec2 (&ctx->fd_wqh){....}, at: io_submit_one+0xef2/0x2eb0 fs/aio.c:1885
and this task is already holding:
000000005f298072 (&(&ctx->ctx_lock)->rlock){..-.}, at: spin_lock_irq include/linux/spinlock.h:354 [inline]
000000005f298072 (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll fs/aio.c:1739 [inline]
000000005f298072 (&(&ctx->ctx_lock)->rlock){..-.}, at: __io_submit_one fs/aio.c:1849 [inline]
000000005f298072 (&(&ctx->ctx_lock)->rlock){..-.}, at: io_submit_one+0xead/0x2eb0 fs/aio.c:1885
which would create a new lock dependency:
(&(&ctx->ctx_lock)->rlock){..-.} -> (&ctx->fd_wqh){....}
but this new dependency connects a SOFTIRQ-irq-safe lock:
(&(&ctx->ctx_lock)->rlock){..-.}
... which became SOFTIRQ-irq-safe at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
_raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:160
spin_lock_irq include/linux/spinlock.h:354 [inline]
free_ioctx_users+0x2d/0x490 fs/aio.c:614
percpu_ref_put_many include/linux/percpu-refcount.h:284 [inline]
percpu_ref_put include/linux/percpu-refcount.h:300 [inline]
percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline]
percpu_ref_switch_to_atomic_rcu+0x407/0x540 lib/percpu-refcount.c:158
__rcu_reclaim kernel/rcu/rcu.h:236 [inline]
rcu_do_batch kernel/rcu/tree.c:2584 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline]
__rcu_process_callbacks kernel/rcu/tree.c:2864 [inline]
rcu_process_callbacks+0xba0/0x1a30 kernel/rcu/tree.c:2881
__do_softirq+0x25c/0x921 kernel/softirq.c:292
do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1067
do_softirq.part.0+0x11a/0x170 kernel/softirq.c:336
do_softirq kernel/softirq.c:328 [inline]
__local_bh_enable_ip+0x211/0x270 kernel/softirq.c:189
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline]
_raw_spin_unlock_bh+0x31/0x40 kernel/locking/spinlock.c:200
spin_unlock_bh include/linux/spinlock.h:374 [inline]
__ip6_ins_rt+0x5f/0x80 net/ipv6/route.c:1165
ip6_route_add+0x5a/0xd0 net/ipv6/route.c:3210
addrconf_prefix_route.isra.0+0x358/0x4f0 net/ipv6/addrconf.c:2346
addrconf_add_linklocal+0x284/0x3c0 net/ipv6/addrconf.c:3137
addrconf_addr_gen+0x34d/0x3a0 net/ipv6/addrconf.c:3262
addrconf_dev_config+0x1ea/0x2c0 net/ipv6/addrconf.c:3305
addrconf_notify+0x393/0x22e0 net/ipv6/addrconf.c:3536
notifier_call_chain+0xc2/0x230 kernel/notifier.c:93
__raw_notifier_call_chain kernel/notifier.c:394 [inline]
raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401
call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1747
call_netdevice_notifiers net/core/dev.c:1765 [inline]
__dev_notify_flags+0x121/0x2c0 net/core/dev.c:7536
dev_change_flags+0x101/0x150 net/core/dev.c:7572
do_setlink+0x1604/0x34c0 net/core/rtnetlink.c:2428
rtnl_newlink+0xbad/0x1610 net/core/rtnetlink.c:3047
rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:4747
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4765
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x537/0x720 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
__sys_sendto+0x262/0x380 net/socket.c:1787
__do_sys_sendto net/socket.c:1799 [inline]
__se_sys_sendto net/socket.c:1795 [inline]
__x64_sys_sendto+0xe1/0x1a0 net/socket.c:1795
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
to a SOFTIRQ-irq-unsafe lock:
(&ctx->fault_pending_wqh){+.+.}
... which became SOFTIRQ-irq-unsafe at:
...
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
userfaultfd_release+0x4d6/0x720 fs/userfaultfd.c:922
__fput+0x2dd/0x8b0 fs/file_table.c:278
____fput+0x16/0x20 fs/file_table.c:309
task_work_run+0x145/0x1c0 kernel/task_work.c:113
get_signal+0x1baa/0x1fc0 kernel/signal.c:2385
do_signal+0x95/0x1960 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x53d/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
other info that might help us debug this:
Chain exists of:
&(&ctx->ctx_lock)->rlock --> &ctx->fd_wqh --> &ctx->fault_pending_wqh
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ctx->fault_pending_wqh);
local_irq_disable();
lock(&(&ctx->ctx_lock)->rlock);
lock(&ctx->fd_wqh);
<Interrupt>
lock(&(&ctx->ctx_lock)->rlock);
*** DEADLOCK ***
1 lock held by syz-executor.3/8131:
#0: 000000005f298072 (&(&ctx->ctx_lock)->rlock){..-.}, at: spin_lock_irq include/linux/spinlock.h:354 [inline]
#0: 000000005f298072 (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll fs/aio.c:1739 [inline]
#0: 000000005f298072 (&(&ctx->ctx_lock)->rlock){..-.}, at: __io_submit_one fs/aio.c:1849 [inline]
#0: 000000005f298072 (&(&ctx->ctx_lock)->rlock){..-.}, at: io_submit_one+0xead/0x2eb0 fs/aio.c:1885
the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
-> (&(&ctx->ctx_lock)->rlock){..-.} ops: 33 {
IN-SOFTIRQ-W at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
_raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:160
spin_lock_irq include/linux/spinlock.h:354 [inline]
free_ioctx_users+0x2d/0x490 fs/aio.c:614
percpu_ref_put_many include/linux/percpu-refcount.h:284 [inline]
percpu_ref_put include/linux/percpu-refcount.h:300 [inline]
percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline]
percpu_ref_switch_to_atomic_rcu+0x407/0x540 lib/percpu-refcount.c:158
__rcu_reclaim kernel/rcu/rcu.h:236 [inline]
rcu_do_batch kernel/rcu/tree.c:2584 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline]
__rcu_process_callbacks kernel/rcu/tree.c:2864 [inline]
rcu_process_callbacks+0xba0/0x1a30 kernel/rcu/tree.c:2881
__do_softirq+0x25c/0x921 kernel/softirq.c:292
do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1067
do_softirq.part.0+0x11a/0x170 kernel/softirq.c:336
do_softirq kernel/softirq.c:328 [inline]
__local_bh_enable_ip+0x211/0x270 kernel/softirq.c:189
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline]
_raw_spin_unlock_bh+0x31/0x40 kernel/locking/spinlock.c:200
spin_unlock_bh include/linux/spinlock.h:374 [inline]
__ip6_ins_rt+0x5f/0x80 net/ipv6/route.c:1165
ip6_route_add+0x5a/0xd0 net/ipv6/route.c:3210
addrconf_prefix_route.isra.0+0x358/0x4f0 net/ipv6/addrconf.c:2346
addrconf_add_linklocal+0x284/0x3c0 net/ipv6/addrconf.c:3137
addrconf_addr_gen+0x34d/0x3a0 net/ipv6/addrconf.c:3262
addrconf_dev_config+0x1ea/0x2c0 net/ipv6/addrconf.c:3305
addrconf_notify+0x393/0x22e0 net/ipv6/addrconf.c:3536
notifier_call_chain+0xc2/0x230 kernel/notifier.c:93
__raw_notifier_call_chain kernel/notifier.c:394 [inline]
raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401
call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1747
call_netdevice_notifiers net/core/dev.c:1765 [inline]
__dev_notify_flags+0x121/0x2c0 net/core/dev.c:7536
dev_change_flags+0x101/0x150 net/core/dev.c:7572
do_setlink+0x1604/0x34c0 net/core/rtnetlink.c:2428
rtnl_newlink+0xbad/0x1610 net/core/rtnetlink.c:3047
rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:4747
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4765
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x537/0x720 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
__sys_sendto+0x262/0x380 net/socket.c:1787
__do_sys_sendto net/socket.c:1799 [inline]
__se_sys_sendto net/socket.c:1795 [inline]
__x64_sys_sendto+0xe1/0x1a0 net/socket.c:1795
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
INITIAL USE at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
_raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:160
spin_lock_irq include/linux/spinlock.h:354 [inline]
free_ioctx_users+0x2d/0x490 fs/aio.c:614
percpu_ref_put_many include/linux/percpu-refcount.h:284 [inline]
percpu_ref_put include/linux/percpu-refcount.h:300 [inline]
percpu_ref_call_confirm_rcu lib/percpu-refcount.c:123 [inline]
percpu_ref_switch_to_atomic_rcu+0x407/0x540 lib/percpu-refcount.c:158
__rcu_reclaim kernel/rcu/rcu.h:236 [inline]
rcu_do_batch kernel/rcu/tree.c:2584 [inline]
invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline]
__rcu_process_callbacks kernel/rcu/tree.c:2864 [inline]
rcu_process_callbacks+0xba0/0x1a30 kernel/rcu/tree.c:2881
__do_softirq+0x25c/0x921 kernel/softirq.c:292
do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1067
do_softirq.part.0+0x11a/0x170 kernel/softirq.c:336
do_softirq kernel/softirq.c:328 [inline]
__local_bh_enable_ip+0x211/0x270 kernel/softirq.c:189
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline]
_raw_spin_unlock_bh+0x31/0x40 kernel/locking/spinlock.c:200
spin_unlock_bh include/linux/spinlock.h:374 [inline]
__ip6_ins_rt+0x5f/0x80 net/ipv6/route.c:1165
ip6_route_add+0x5a/0xd0 net/ipv6/route.c:3210
addrconf_prefix_route.isra.0+0x358/0x4f0 net/ipv6/addrconf.c:2346
addrconf_add_linklocal+0x284/0x3c0 net/ipv6/addrconf.c:3137
addrconf_addr_gen+0x34d/0x3a0 net/ipv6/addrconf.c:3262
addrconf_dev_config+0x1ea/0x2c0 net/ipv6/addrconf.c:3305
addrconf_notify+0x393/0x22e0 net/ipv6/addrconf.c:3536
notifier_call_chain+0xc2/0x230 kernel/notifier.c:93
__raw_notifier_call_chain kernel/notifier.c:394 [inline]
raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401
call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1747
call_netdevice_notifiers net/core/dev.c:1765 [inline]
__dev_notify_flags+0x121/0x2c0 net/core/dev.c:7536
dev_change_flags+0x101/0x150 net/core/dev.c:7572
do_setlink+0x1604/0x34c0 net/core/rtnetlink.c:2428
rtnl_newlink+0xbad/0x1610 net/core/rtnetlink.c:3047
rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:4747
netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4765
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x537/0x720 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:632
__sys_sendto+0x262/0x380 net/socket.c:1787
__do_sys_sendto net/socket.c:1799 [inline]
__se_sys_sendto net/socket.c:1795 [inline]
__x64_sys_sendto+0xe1/0x1a0 net/socket.c:1795
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
}
... key at: [<ffffffff8a3873a0>] __key.50195+0x0/0x40
... acquired at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
aio_poll fs/aio.c:1741 [inline]
__io_submit_one fs/aio.c:1849 [inline]
io_submit_one+0xef2/0x2eb0 fs/aio.c:1885
__do_sys_io_submit fs/aio.c:1929 [inline]
__se_sys_io_submit fs/aio.c:1900 [inline]
__x64_sys_io_submit+0x1aa/0x520 fs/aio.c:1900
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
the dependencies between the lock to be acquired
and SOFTIRQ-irq-unsafe lock:
-> (&ctx->fault_pending_wqh){+.+.} ops: 182 {
HARDIRQ-ON-W at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
userfaultfd_release+0x4d6/0x720 fs/userfaultfd.c:922
__fput+0x2dd/0x8b0 fs/file_table.c:278
____fput+0x16/0x20 fs/file_table.c:309
task_work_run+0x145/0x1c0 kernel/task_work.c:113
get_signal+0x1baa/0x1fc0 kernel/signal.c:2385
do_signal+0x95/0x1960 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x53d/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
SOFTIRQ-ON-W at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
userfaultfd_release+0x4d6/0x720 fs/userfaultfd.c:922
__fput+0x2dd/0x8b0 fs/file_table.c:278
____fput+0x16/0x20 fs/file_table.c:309
task_work_run+0x145/0x1c0 kernel/task_work.c:113
get_signal+0x1baa/0x1fc0 kernel/signal.c:2385
do_signal+0x95/0x1960 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x53d/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
INITIAL USE at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
userfaultfd_ctx_read fs/userfaultfd.c:1046 [inline]
userfaultfd_read+0x394/0x18c0 fs/userfaultfd.c:1204
__vfs_read+0x114/0x800 fs/read_write.c:416
vfs_read+0x194/0x3d0 fs/read_write.c:452
ksys_read+0x14f/0x2d0 fs/read_write.c:579
__do_sys_read fs/read_write.c:589 [inline]
__se_sys_read fs/read_write.c:587 [inline]
__x64_sys_read+0x73/0xb0 fs/read_write.c:587
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
}
... key at: [<ffffffff8a3871e0>] __key.43729+0x0/0x40
... acquired at:
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
userfaultfd_ctx_read fs/userfaultfd.c:1046 [inline]
userfaultfd_read+0x394/0x18c0 fs/userfaultfd.c:1204
__vfs_read+0x114/0x800 fs/read_write.c:416
vfs_read+0x194/0x3d0 fs/read_write.c:452
ksys_read+0x14f/0x2d0 fs/read_write.c:579
__do_sys_read fs/read_write.c:589 [inline]
__se_sys_read fs/read_write.c:587 [inline]
__x64_sys_read+0x73/0xb0 fs/read_write.c:587
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> (&ctx->fd_wqh){....} ops: 184 {
INITIAL USE at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
_raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:160
spin_lock_irq include/linux/spinlock.h:354 [inline]
userfaultfd_ctx_read fs/userfaultfd.c:1042 [inline]
userfaultfd_read+0x262/0x18c0 fs/userfaultfd.c:1204
__vfs_read+0x114/0x800 fs/read_write.c:416
vfs_read+0x194/0x3d0 fs/read_write.c:452
ksys_read+0x14f/0x2d0 fs/read_write.c:579
__do_sys_read fs/read_write.c:589 [inline]
__se_sys_read fs/read_write.c:587 [inline]
__x64_sys_read+0x73/0xb0 fs/read_write.c:587
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
}
... key at: [<ffffffff8a387120>] __key.43732+0x0/0x40
... acquired at:
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
aio_poll fs/aio.c:1741 [inline]
__io_submit_one fs/aio.c:1849 [inline]
io_submit_one+0xef2/0x2eb0 fs/aio.c:1885
__do_sys_io_submit fs/aio.c:1929 [inline]
__se_sys_io_submit fs/aio.c:1900 [inline]
__x64_sys_io_submit+0x1aa/0x520 fs/aio.c:1900
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
stack backtrace:
CPU: 0 PID: 8131 Comm: syz-executor.3 Not tainted 4.19.57 #30
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
print_bad_irq_dependency kernel/locking/lockdep.c:1568 [inline]
check_usage.cold+0x611/0x946 kernel/locking/lockdep.c:1600
check_irq_usage kernel/locking/lockdep.c:1656 [inline]
check_prev_add_irq kernel/locking/lockdep_states.h:8 [inline]
check_prev_add kernel/locking/lockdep.c:1866 [inline]
check_prevs_add kernel/locking/lockdep.c:1974 [inline]
validate_chain kernel/locking/lockdep.c:2415 [inline]
__lock_acquire+0x1ee4/0x48f0 kernel/locking/lockdep.c:3411
lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:329 [inline]
aio_poll fs/aio.c:1741 [inline]
__io_submit_one fs/aio.c:1849 [inline]
io_submit_one+0xef2/0x2eb0 fs/aio.c:1885
__do_sys_io_submit fs/aio.c:1929 [inline]
__se_sys_io_submit fs/aio.c:1900 [inline]
__x64_sys_io_submit+0x1aa/0x520 fs/aio.c:1900
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4597c9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2276776c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004597c9
RDX: 0000000020000000 RSI: 0000000000000001 RDI: 00007f2276778000
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f22767776d4
R13: 00000000004c0b97 R14: 00000000004d3908 R15: 00000000ffffffff
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop1' (00000000ff887faa): kobject_uevent_env
kobject: 'loop1' (00000000ff887faa): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000dcf095d7): kobject_uevent_env
kobject: 'loop4' (00000000dcf095d7): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop5' (000000000e2a3a1d): kobject_uevent_env
kobject: 'loop5' (000000000e2a3a1d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop0' (000000003e3fdb66): kobject_uevent_env
kobject: 'loop0' (000000003e3fdb66): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (000000000e2a3a1d): kobject_uevent_env
kobject: 'loop5' (000000000e2a3a1d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop4' (00000000dcf095d7): kobject_uevent_env
kobject: 'loop4' (00000000dcf095d7): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000ff887faa): kobject_uevent_env
kobject: 'loop1' (00000000ff887faa): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (000000003e3fdb66): kobject_uevent_env
kobject: 'loop0' (000000003e3fdb66): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (000000000e2a3a1d): kobject_uevent_env
kobject: 'loop5' (000000000e2a3a1d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000dcf095d7): kobject_uevent_env
kobject: 'loop4' (00000000dcf095d7): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop1' (00000000ff887faa): kobject_uevent_env
kobject: 'loop1' (00000000ff887faa): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop0' (000000003e3fdb66): kobject_uevent_env
kobject: 'loop0' (000000003e3fdb66): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (000000000e2a3a1d): kobject_uevent_env
kobject: 'loop5' (000000000e2a3a1d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ff887faa): kobject_uevent_env
kobject: 'loop1' (00000000ff887faa): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000dcf095d7): kobject_uevent_env
kobject: 'loop4' (00000000dcf095d7): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (000000003e3fdb66): kobject_uevent_env
kobject: 'loop0' (000000003e3fdb66): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (000000000e2a3a1d): kobject_uevent_env
kobject: 'loop5' (000000000e2a3a1d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000ff887faa): kobject_uevent_env
kobject: 'loop1' (00000000ff887faa): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000dcf095d7): kobject_uevent_env
kobject: 'loop4' (00000000dcf095d7): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (000000003e3fdb66): kobject_uevent_env
kobject: 'loop0' (000000003e3fdb66): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop5' (000000000e2a3a1d): kobject_uevent_env
kobject: 'loop5' (000000000e2a3a1d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000ff887faa): kobject_uevent_env
kobject: 'loop1' (00000000ff887faa): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop4' (00000000dcf095d7): kobject_uevent_env
kobject: 'loop4' (00000000dcf095d7): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (000000003e3fdb66): kobject_uevent_env
kobject: 'loop0' (000000003e3fdb66): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (000000000e2a3a1d): kobject_uevent_env
kobject: 'loop5' (000000000e2a3a1d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000ff887faa): kobject_uevent_env
kobject: 'loop1' (00000000ff887faa): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000dcf095d7): kobject_uevent_env
kobject: 'loop4' (00000000dcf095d7): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (000000003e3fdb66): kobject_uevent_env
kobject: 'loop0' (000000003e3fdb66): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop5' (000000000e2a3a1d): kobject_uevent_env
kobject: 'loop5' (000000000e2a3a1d): fill_kobj_path: path = '/devices/virtual/block/loop5'
kobject: 'loop1' (00000000ff887faa): kobject_uevent_env
kobject: 'loop1' (00000000ff887faa): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (00000000dcf095d7): kobject_uevent_env
kobject: 'loop4' (00000000dcf095d7): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (000000003e3fdb66): kobject_uevent_env
kobject: 'loop0' (000000003e3fdb66): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'loop2' (00000000c9df48b7): kobject_uevent_env
kobject: 'loop2' (00000000c9df48b7): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'loop3' (00000000cca82e5a): kobject_uevent_env
kobject: 'loop3' (00000000cca82e5a): fill_kobj_path: path = '/devices/virtual/block/loop3'