rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-...!: (10501 ticks this GP) idle=5f6c/1/0x4000000000000000 softirq=312690/312690 fqs=0 rcu: (t=10502 jiffies g=559681 q=113 ncpus=2) rcu: rcu_preempt kthread timer wakeup didn't happen for 10502 jiffies! g559681 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 rcu: Possible timer handling issue on cpu=0 timer-softirq=236002 rcu: rcu_preempt kthread starved for 10505 jiffies! g559681 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:24176 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x17d1/0x49f0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0x149/0x260 kernel/sched/core.c:6817 schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2183 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:1663 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862 kthread+0x2ef/0x390 kernel/kthread.c:388 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243 CPU: 0 PID: 5113 Comm: syz-executor.0 Not tainted 6.8.0-rc7-syzkaller-00017-g29cd507cbec2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:get_current arch/x86/include/asm/current.h:42 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:206 Code: 8b 3d 94 c3 1a 0c 48 89 de 5b e9 63 ca 56 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d a0 50 70 7e 65 8b 15 a1 50 70 7e f7 c2 00 01 ff 00 74 RSP: 0018:ffffc90000007698 EFLAGS: 00000246 RAX: ffffffff863f1ec7 RBX: 0000000000000000 RCX: ffff88802a6ed940 RDX: 0000000000000302 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff863f1e8c R09: 1ffffffff2591a91 R10: dffffc0000000000 R11: ffffffff863f1df0 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9400000(0063) knlGS:0000000058426400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f748a170 CR3: 000000007ceae000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bond_select_queue+0xd7/0x140 drivers/net/bonding/bond_main.c:5277 netdev_core_pick_tx+0x116/0x320 net/core/dev.c:4227 __dev_queue_xmit+0x8c3/0x3b10 net/core/dev.c:4311 dev_queue_xmit include/linux/netdevice.h:3171 [inline] tipc_l2_send_msg+0x302/0x3c0 net/tipc/bearer.c:512 tipc_bearer_xmit_skb+0x2f5/0x460 net/tipc/bearer.c:571 tipc_disc_timeout+0x5ee/0x760 net/tipc/discover.c:338 call_timer_fn+0x17e/0x600 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x621/0x830 kernel/time/timer.c:2038 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2051 __do_softirq+0x2bb/0x942 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu+0xf1/0x1c0 kernel/softirq.c:632 irq_exit_rcu+0x9/0x30 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:__sanitizer_cov_trace_cmp8+0x0/0x90 kernel/kcov.c:283 Code: 48 89 74 0a 18 4c 89 44 0a 20 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 4c 8b 04 24 65 48 8b 0d 40 4e 70 7e 65 8b 05 41 4e 70 RSP: 0018:ffffc90003c7efe0 EFLAGS: 00000283 RAX: 0000000000000000 RBX: ffffffff8fe8fab0 RCX: dffffc0000000000 RDX: ffff88802a6ed940 RSI: ffffffff8959b2a7 RDI: ffffffff8959af68 RBP: ffffffff8959af68 R08: ffffffff81405033 R09: ffffc90003c7f1b0 R10: 0000000000000003 R11: ffffffff818045c0 R12: ffffffff8fe8fab0 R13: ffffffff8fe8fab0 R14: ffffffff8959b2a7 R15: ffffffff8fe8fab0 __orc_find arch/x86/kernel/unwind_orc.c:102 [inline] orc_find arch/x86/kernel/unwind_orc.c:227 [inline] unwind_next_frame+0x515/0x29e0 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0x150/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x117/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:589 poison_slab_object+0xa6/0xe0 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kmem_cache_free+0x102/0x2a0 mm/slub.c:4363 __merge_or_add_vmap_area mm/vmalloc.c:1157 [inline] merge_or_add_vmap_area mm/vmalloc.c:1207 [inline] free_vmap_area_noflush+0x2fe/0xaf0 mm/vmalloc.c:1833 free_unmap_vmap_area mm/vmalloc.c:1854 [inline] remove_vm_area+0x2b7/0x300 mm/vmalloc.c:2705 vfree+0x7c/0x2e0 mm/vmalloc.c:2824 xt_compat_flush_offsets+0x77/0xb0 net/netfilter/x_tables.c:691 compat_get_entries net/ipv4/netfilter/ip_tables.c:1601 [inline] do_ipt_get_ctl+0xf02/0x1810 net/ipv4/netfilter/ip_tables.c:1657 nf_getsockopt+0x299/0x2c0 net/netfilter/nf_sockopt.c:116 ip_getsockopt+0x222/0x2e0 net/ipv4/ip_sockglue.c:1770 tcp_getsockopt+0x163/0x1c0 net/ipv4/tcp.c:4372 do_sock_getsockopt+0x373/0x850 net/socket.c:2373 __sys_getsockopt+0x270/0x330 net/socket.c:2402 __do_compat_sys_socketcall net/compat.c:494 [inline] __se_compat_sys_socketcall+0x348/0x1430 net/compat.c:423 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xbd/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x7c/0x86 RIP: 0023:0xf7333579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f75d4620 EFLAGS: 00000206 ORIG_RAX: 0000000000000066 RAX: ffffffffffffffda RBX: 000000000000000f RCX: 00000000f75d4658 RDX: 00000000f75d46d4 RSI: 00000000f75d472c RDI: 00000000f7489ff4 RBP: 00000000f748f730 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000