bisecting fixing commit since c7d102232649226a69dddd58a4942cf13cff4f7c
building syzkaller on 6c236867ce33c0c16b102e02a08226d7eb9b2046
testing commit c7d102232649226a69dddd58a4942cf13cff4f7c
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 3b78dda367e897f317f26e1057bdf850e34bc92a15f820e4da5bc9edb52d6ad0
all runs: crashed: INFO: task hung in synchronize_rcu
testing current HEAD 249aca0d3d631660aa3583c6a3559b75b6e971b4
testing commit 249aca0d3d631660aa3583c6a3559b75b6e971b4
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: aaaba3ba0e6c5b399791ed98c7b80b520a7b5b956ce337c1cfdeff7cb0e44a40
run #0: crashed: INFO: task hung in synchronize_rcu
run #1: crashed: INFO: task hung in synchronize_rcu
run #2: crashed: INFO: task hung in synchronize_rcu
run #3: crashed: INFO: task hung in synchronize_rcu
run #4: crashed: INFO: task hung in synchronize_rcu
run #5: crashed: INFO: task hung in synchronize_rcu
run #6: crashed: INFO: task hung in synchronize_rcu
run #7: crashed: INFO: task hung in __lru_add_drain_all
run #8: crashed: INFO: task hung in synchronize_rcu
run #9: crashed: INFO: task hung in synchronize_rcu
revisions tested: 2, total time: 25m12.569515345s (build: 11m48.677737385s, test: 12m34.866723715s)
the crash still happens on HEAD
commit msg: Merge tag 'net-5.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
crash: INFO: task hung in synchronize_rcu
INFO: task dhcpcd:7781 blocked for more than 143 seconds.
Not tainted 5.18.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:29304 pid: 7781 ppid: 3211 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
synchronize_rcu_expedited+0x471/0x620 kernel/rcu/tree_exp.h:857
__unregister_prot_hook+0x345/0x460 net/packet/af_packet.c:382
packet_do_bind+0x61b/0xad0 net/packet/af_packet.c:3217
__sys_bind+0x16b/0x1d0 net/socket.c:1697
__do_sys_bind net/socket.c:1708 [inline]
__se_sys_bind net/socket.c:1706 [inline]
__x64_sys_bind+0x6a/0xb0 net/socket.c:1706
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8c22b97ce7
RSP: 002b:00007ffed6cc5e18 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000558279d58b60 RCX: 00007f8c22b97ce7
RDX: 0000000000000014 RSI: 00007ffed6cc5e28 RDI: 0000000000000005
RBP: 0000000000000000 R08: 000055827a122b60 R09: 00007f8c22c58a60
R10: 0000000001000000 R11: 0000000000000217 R12: 000055827a11fb60
R13: 000055827a122978 R14: 00007ffed6ce66fc R15: 00007ffed6ce6724
INFO: task dhcpcd:7988 blocked for more than 144 seconds.
Not tainted 5.18.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:29304 pid: 7988 ppid: 3211 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6519
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:841
__unregister_prot_hook+0x345/0x460 net/packet/af_packet.c:382
packet_do_bind+0x61b/0xad0 net/packet/af_packet.c:3217
__sys_bind+0x16b/0x1d0 net/socket.c:1697
__do_sys_bind net/socket.c:1708 [inline]
__se_sys_bind net/socket.c:1706 [inline]
__x64_sys_bind+0x6a/0xb0 net/socket.c:1706
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8c22b97ce7
RSP: 002b:00007ffed6cc5e18 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000558279d58b60 RCX: 00007f8c22b97ce7
RDX: 0000000000000014 RSI: 00007ffed6cc5e28 RDI: 0000000000000005
RBP: 0000000000000000 R08: 000055827a122b60 R09: 00007f8c22c58a60
R10: 0000000001000000 R11: 0000000000000217 R12: 000055827a11fb60
R13: 000055827a123c48 R14: 00007ffed6ce66fc R15: 00007ffed6ce6724
INFO: task dhcpcd:8145 blocked for more than 146 seconds.
Not tainted 5.18.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:29304 pid: 8145 ppid: 3211 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
synchronize_rcu_expedited+0x5a8/0x620 kernel/rcu/tree_exp.h:841
__unregister_prot_hook+0x345/0x460 net/packet/af_packet.c:382
packet_do_bind+0x61b/0xad0 net/packet/af_packet.c:3217
__sys_bind+0x16b/0x1d0 net/socket.c:1697
__do_sys_bind net/socket.c:1708 [inline]
__se_sys_bind net/socket.c:1706 [inline]
__x64_sys_bind+0x6a/0xb0 net/socket.c:1706
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8c22b97ce7
RSP: 002b:00007ffed6cc5e18 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000558279d58b60 RCX: 00007f8c22b97ce7
RDX: 0000000000000014 RSI: 00007ffed6cc5e28 RDI: 0000000000000005
RBP: 0000000000000000 R08: 000055827a122b60 R09: 00007f8c22c58a60
R10: 0000000001000000 R11: 0000000000000217 R12: 000055827a11fb60
R13: 000055827a124498 R14: 00007ffed6ce66fc R15: 00007ffed6ce6724
INFO: task dhcpcd:8180 blocked for more than 147 seconds.
Not tainted 5.18.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:29304 pid: 8180 ppid: 3211 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0x913/0x26a0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
exp_funnel_lock kernel/rcu/tree_exp.h:313 [inline]
synchronize_rcu_expedited+0x5a8/0x620 kernel/rcu/tree_exp.h:841
synchronize_rcu+0x132/0x190 kernel/rcu/tree.c:3789
__unregister_prot_hook+0x345/0x460 net/packet/af_packet.c:382
packet_do_bind+0x61b/0xad0 net/packet/af_packet.c:3217
__sys_bind+0x16b/0x1d0 net/socket.c:1697
__do_sys_bind net/socket.c:1708 [inline]
__se_sys_bind net/socket.c:1706 [inline]
__x64_sys_bind+0x6a/0xb0 net/socket.c:1706
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0x80 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8c22b97ce7
RSP: 002b:00007ffed6cc5e18 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000558279d58b60 RCX: 00007f8c22b97ce7
RDX: 0000000000000014 RSI: 00007ffed6cc5e28 RDI: 0000000000000005
RBP: 0000000000000000 R08: 000055827a122b60 R09: 00007f8c22c58a60
R10: 0000000001000000 R11: 0000000000000217 R12: 000055827a11fb60
R13: 000055827a124618 R14: 00007ffed6ce66fc R15: 00007ffed6ce6724
Showing all locks held in the system:
3 locks held by kworker/1:0/22:
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc900001c7db8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff8880666b8240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1a4/0x20e0 drivers/net/netdevsim/fib.c:1474
3 locks held by kworker/1:1/26:
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88802271c538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc90000a1fdb8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff88802bbd0958 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xaa/0x15d0 kernel/sched/core.c:4082
1 lock held by khungtaskd/28:
#0: ffffffff8af76920 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
1 lock held by khugepaged/34:
#0: ffffffff8b05a328 (lock#5){+.+.}-{3:3}, at: __lru_add_drain_all+0x57/0x6d0 mm/swap.c:790
5 locks held by kworker/u4:2/45:
2 locks held by kworker/u4:3/58:
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc90001c0fdb8 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
3 locks held by kworker/1:2/141:
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc9000254fdb8 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff8880666b8240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1a4/0x20e0 drivers/net/netdevsim/fib.c:1474
2 locks held by kworker/u4:4/978:
1 lock held by udevd/3000:
2 locks held by getty/3308:
#0: ffff88814c030098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x1f/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900028e62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9d7/0xed0 drivers/tty/n_tty.c:2075
3 locks held by kworker/0:7/3962:
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888010064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc90002bdfdb8 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
#2: ffff88807ca9c240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1a4/0x20e0 drivers/net/netdevsim/fib.c:1474
2 locks held by kworker/u4:6/4022:
3 locks held by kworker/0:10/4065:
2 locks held by kworker/u4:7/7626:
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888010069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x13d0 kernel/workqueue.c:2260
#1: ffffc90005cafdb8 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x7b7/0x13d0 kernel/workqueue.c:2264
2 locks held by dhcpcd/7781:
#0: ffff888062072130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff888062072130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
#1: ffffffff8af806e0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#1: ffffffff8af806e0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fa/0x620 kernel/rcu/tree_exp.h:841
2 locks held by dhcpcd/7988:
#0: ffff88805a4b4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff88805a4b4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
#1: ffffffff8af806e0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#1: ffffffff8af806e0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:841
1 lock held by dhcpcd/8145:
#0: ffff8880521de130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff8880521de130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/8180:
#0: ffff888054c2c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff888054c2c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/13627:
#0: ffff88807c702130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff88807c702130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/13678:
#0: ffff888025368130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff888025368130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/13693:
#0: ffff88807a452130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff88807a452130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/13694:
#0: ffff88804cbbe130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff88804cbbe130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/13701:
#0: ffff888055558130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff888055558130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
1 lock held by dhcpcd/13744:
#0: ffff888051d98130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1682 [inline]
#0: ffff888051d98130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x27/0xad0 net/packet/af_packet.c:3184
1 lock held by syz-executor.1/15966:
1 lock held by syz-executor.5/15968:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.3/15970:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.2/15972:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.0/15975:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.4/15976:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.5/15980:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.3/15982:
2 locks held by syz-executor.1/15984:
#0: ffff8880b9f39f58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline]
#0: ffff8880b9f39f58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1297 [inline]
#0: ffff8880b9f39f58 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1595 [inline]
#0: ffff8880b9f39f58 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x26a0 kernel/sched/core.c:6302
#1: ffff8880b9f27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:889
2 locks held by syz-executor.4/15991:
5 locks held by syz-executor.5/15993:
1 lock held by syz-executor.2/15994:
1 lock held by syz-executor.1/15998:
1 lock held by syz-executor.0/16000:
1 lock held by syz-executor.5/16004:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.3/16006:
1 lock held by syz-executor.2/16010:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.1/16009:
1 lock held by syz-executor.0/16012:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.4/16014:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.5/16016:
1 lock held by syz-executor.3/16018:
1 lock held by syz-executor.1/16020:
1 lock held by syz-executor.2/16022:
1 lock held by syz-executor.0/16024:
1 lock held by syz-executor.5/16025:
#0: ffff8880b9f39f58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline]
#0: ffff8880b9f39f58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1297 [inline]
#0: ffff8880b9f39f58 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1595 [inline]
#0: ffff8880b9f39f58 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x26a0 kernel/sched/core.c:6302
1 lock held by syz-executor.5/16028:
2 locks held by syz-executor.4/16027:
#0: ffff8880b9e39f58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:554 [inline]
#0: ffff8880b9e39f58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1297 [inline]
#0: ffff8880b9e39f58 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1595 [inline]
#0: ffff8880b9e39f58 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x26a0 kernel/sched/core.c:6302
#1: ffff8880b9e27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:889
1 lock held by syz-executor.0/16036:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.4/16038:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.5/16041:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.1/16044:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.2/16046:
1 lock held by syz-executor.3/16048:
1 lock held by syz-executor.0/16050:
1 lock held by syz-executor.4/16052:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.5/16054:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990
1 lock held by syz-executor.1/16056:
1 lock held by syz-executor.2/16058:
1 lock held by syz-executor.3/16060:
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8c6985e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x2d2/0x8d0 net/core/rtnetlink.c:5990