rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10302/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=334177, q=311 ncpus=2)
task:syz-executor.3 state:R running task stack:23840 pid:10302 tgid:10302 ppid:10298 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6925
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:12
vprintk_emit kernel/printk/printk.c:2349 [inline]
vprintk_emit+0x4fd/0x5a0 kernel/printk/printk.c:2303
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
_printk+0xc8/0x100 kernel/printk/printk.c:2373
batadv_check_known_mac_addr+0x230/0x440 net/batman-adv/hard-interface.c:528
batadv_hard_if_event+0x1060/0x1680 net/batman-adv/hard-interface.c:998
notifier_call_chain+0xb9/0x410 kernel/notifier.c:93
call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:1950
call_netdevice_notifiers_extack net/core/dev.c:1988 [inline]
call_netdevice_notifiers net/core/dev.c:2002 [inline]
dev_set_mac_address+0x370/0x4a0 net/core/dev.c:8955
dev_set_mac_address_user+0x30/0x50 net/core/dev.c:8969
do_setlink+0x901/0x3ff0 net/core/rtnetlink.c:2839
__rtnl_newlink+0xc35/0x1960 net/core/rtnetlink.c:3680
rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3727
rtnetlink_rcv_msg+0x3c7/0xe60 net/core/rtnetlink.c:6595
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2559
netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1361
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
__sys_sendto+0x47f/0x4e0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0000e7fa5c
RSP: 002b:00007ffc7de1efc0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f0001ad4620 RCX: 00007f0000e7fa5c
RDX: 000000000000002c RSI: 00007f0001ad4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffc7de1f014 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f0001ad4670 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 10485 jiffies! g334177 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:27216 pid:16 tgid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6838
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2582
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:1663
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:1862
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 10511 Comm: syz-executor.4 Not tainted 6.9.0-rc7-syzkaller-00012-gdccb07f2914c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:finish_task_switch.isra.0+0x220/0xcc0 kernel/sched/core.c:5283
Code: a9 0a 00 00 44 8b 0d e7 24 41 0e 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 ae f8 ff ff e8 69 82 36 00 fb 65 48 8b 1d 30 72 a5 7e <48> 8d bb f0 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc900036af820 EFLAGS: 00000206
RAX: 00000000006d197b RBX: ffff888019b78000 RCX: 1ffffffff1f3e279
RDX: 0000000000000000 RSI: ffffffff8b0cae00 RDI: ffffffff8b6f57a0
RBP: ffffc900036af868 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8f9f5657 R11: 0000000000000000 R12: ffff8880b943f7b8
R13: ffff8880293e1e00 R14: 0000000000000000 R15: ffff8880b943ea40
FS: 000055558ecbb480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f26b57acf80 CR3: 000000005e96a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000001 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
context_switch kernel/sched/core.c:5412 [inline]
__schedule+0xf1d/0x5d00 kernel/sched/core.c:6746
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7068
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_count_add+0x0/0x150 kernel/sched/core.c:5861
Code: 5d c3 cc cc cc cc e8 3f b6 7d 09 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 c7 c0 a0 ba 6b 94 55 48 ba 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900036afae0 EFLAGS: 00000202
RAX: 000000000000400e RBX: ffff888019b78000 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8b0cae00 RDI: 0000000000000001
RBP: ffffed100336f000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8f9f5657 R11: 0000000000000000 R12: ffff888019b7802c
R13: ffff888019b78000 R14: ffffffff81816bd1 R15: dffffc0000000000
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe0/0x350 kernel/sched/core.c:6838
futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370
__futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669
futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697
do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
__do_sys_futex kernel/futex/syscalls.c:179 [inline]
__se_sys_futex kernel/futex/syscalls.c:160 [inline]
__x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f26b4a7dd69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff3cb63b58 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000002738b1 RCX: 00007f26b4a7dd69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f26b4bac05c
RBP: 00007fff3cb63c60 R08: 0000000000000001 R09: 0000000000000c0d
R10: 00007fff3cb63c40 R11: 0000000000000246 R12: 00000000002738e3
R13: 00007f26b4bac05c R14: 00007fff3cb63c40 R15: 0000000000000032