bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7804/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=26813, q=491 ncpus=2)
task:syz.4.519 state:R running task stack:24328 pid:7804 tgid:7802 ppid:5852 task_flags:0x40044c flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x167/0x2f0 arch/x86/include/asm/irqflags.h:-1
Code: c7 44 24 10 00 00 00 00 9c 8f 44 24 10 f7 44 24 10 00 02 00 00 0f 85 fd 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 65 48 8b 45 00 <48> 3b 44 24 38 0f 85 72 01 00 00 48 83 c4 40 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc9001d03e8e8 EFLAGS: 00000206
RAX: 1b4303fdf1d36c00 RBX: ffffffff8ed3dfe0 RCX: 1b4303fdf1d36c00
RDX: 0000000000000000 RSI: ffffffff8e4fa0ec RDI: ffffffff8ca1ab00
RBP: ffffffff93687020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000246 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:841 [inline]
class_rcu_constructor include/linux/rcupdate.h:1155 [inline]
unwind_next_frame+0xd5/0x23b0 arch/x86/kernel/unwind_orc.c:479
arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
save_stack+0xfc/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x1e0 mm/page_owner.c:308
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1262 [inline]
free_unref_folios+0xe0e/0x17f0 mm/page_alloc.c:2737
folios_put_refs+0x70a/0x800 mm/swap.c:992
free_pages_and_swap_cache+0x2ea/0x6a0 mm/swap_state.c:267
__tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:397 [inline]
tlb_flush_mmu+0x3a9/0x690 mm/mmu_gather.c:404
zap_pte_range mm/memory.c:1770 [inline]
zap_pmd_range mm/memory.c:1823 [inline]
zap_pud_range mm/memory.c:1852 [inline]
zap_p4d_range mm/memory.c:1873 [inline]
unmap_page_range+0x3a84/0x44d0 mm/memory.c:1894
unmap_vmas+0x3ce/0x5f0 mm/memory.c:1984
exit_mmap+0x2bc/0xde0 mm/mmap.c:1284
__mmput+0x115/0x420 kernel/fork.c:1379
exit_mm+0x221/0x310 kernel/exit.c:586
do_exit+0x994/0x28c0 kernel/exit.c:941
do_group_exit+0x207/0x2c0 kernel/exit.c:1103
get_signal+0x1696/0x1730 kernel/signal.c:3036
arch_do_signal_or_restart+0x98/0x840 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1ce298d169
RSP: 002b:00007f1ce3735038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: 000000000000fffd RBX: 00007f1ce2ba6080 RCX: 00007f1ce298d169
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000004
RBP: 00007f1ce2a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f1ce2ba6080 R15: 00007f1ce2ccfa28
rcu: rcu_preempt kthread starved for 1055 jiffies! g26813 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:26688 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_timeout+0x15b/0x2b0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2e1/0x1340 kernel/rcu/tree.c:2046
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2248
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 1298 Comm: aoe_tx0 Not tainted 6.14.0-syzkaller-12508-g92b71befc349 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:console_flush_all+0x998/0xec0 arch/x86/include/asm/irqflags.h:-1
Code: 48 21 c3 0f 85 16 02 00 00 e8 04 f8 20 00 4c 8b 7c 24 10 4d 85 f6 75 07 e8 f5 f7 20 00 eb 06 e8 ee f7 20 00 fb 48 8b 5c 24 18 <48> 8b 44 24 30 42 80 3c 28 00 74 08 48 89 df e8 54 1c 8b 00 4c 8b
RSP: 0018:ffffc900040e7060 EFLAGS: 00000293
RAX: ffffffff81a25eb2 RBX: ffffffff8f5a0938 RCX: ffff888027d11e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900040e7210 R08: ffffffff81a25e89 R09: 1ffffffff20bf80e
R10: dffffc0000000000 R11: fffffbfff20bf80f R12: ffffffff8f5a08e0
R13: dffffc0000000000 R14: 0000000000000200 R15: ffffc900040e7260
FS: 0000000000000000(0000) GS:ffff888124f99000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000003b3030 CR3: 000000003478c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
console_unlock+0x151/0x3b0 kernel/printk/printk.c:3325
vprintk_emit+0x761/0xa40 kernel/printk/printk.c:2450
dev_vprintk_emit+0x358/0x420 drivers/base/core.c:4891
dev_printk_emit+0xdf/0x130 drivers/base/core.c:4902
__netdev_printk+0x3e0/0x4d0 net/core/dev.c:12392
netdev_warn+0x12d/0x180 net/core/dev.c:12445
ieee802154_subif_start_xmit+0x134/0x190 net/mac802154/tx.c:232
__netdev_start_xmit include/linux/netdevice.h:5201 [inline]
netdev_start_xmit include/linux/netdevice.h:5210 [inline]
xmit_one net/core/dev.c:3780 [inline]
dev_hard_start_xmit+0x2d4/0x840 net/core/dev.c:3796
sch_direct_xmit+0x2b2/0x600 net/sched/sch_generic.c:343
__dev_xmit_skb net/core/dev.c:4022 [inline]
__dev_queue_xmit+0x1a9c/0x3f60 net/core/dev.c:4599
dev_queue_xmit include/linux/netdevice.h:3350 [inline]
tx+0x6b/0x180 drivers/block/aoe/aoenet.c:62
kthread+0x23c/0x470 drivers/block/aoe/aoecmd.c:1237
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:a4:f6:19:2c:1a, vlan:0)