sched: DL replenish lagged too much watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.7.89:6614] Modules linked in: irq event stamp: 13801515 hardirqs last enabled at (13801514): [] irqentry_exit+0x74/0x90 kernel/entry/common.c:214 hardirqs last disabled at (13801515): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1052 softirqs last enabled at (422778): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (422778): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (422778): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 softirqs last disabled at (422781): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (422781): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (422781): [] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 CPU: 1 UID: 0 PID: 6614 Comm: syz.7.89 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:unwind_next_frame+0xa88/0x2390 arch/x86/kernel/unwind_orc.c:581 Code: 00 00 48 0f bf 02 49 01 c4 48 8d 5e 01 48 8b 44 24 40 0f b6 04 28 84 c0 0f 85 78 13 00 00 49 89 df 49 c1 ef 03 41 0f b6 04 2f <84> c0 0f 85 88 13 00 00 0f b6 76 01 83 e6 07 83 fe 04 4c 89 64 24 RSP: 0018:ffffc90000a081f8 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: ffffffff902c9359 RCX: ffffffff8fb192f8 RDX: ffffffff902c9354 RSI: ffffffff902c9358 RDI: ffffffff8bc06080 RBP: dffffc0000000000 R08: 000000000000000c R09: ffffffff8172ad45 R10: ffffc90000a07dc8 R11: fffff52000140fbb R12: ffffc90000a08ff8 R13: ffffc90000a08318 R14: ffffc90000a082c8 R15: 1ffffffff205926b FS: 00007f57912f46c0(0000) GS:ffff888125e27000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f53c0bacb50 CR3: 000000007e382000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:56 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:77 unpoison_slab_object mm/kasan/common.c:342 [inline] __kasan_mempool_unpoison_object+0xa0/0x170 mm/kasan/common.c:570 kasan_mempool_unpoison_object include/linux/kasan.h:390 [inline] napi_skb_cache_get+0x37b/0x6d0 net/core/skbuff.c:296 __alloc_skb+0x11e/0x2d0 net/core/skbuff.c:658 napi_alloc_skb+0x84/0x7d0 net/core/skbuff.c:812 page_to_skb+0x288/0x930 drivers/net/virtio_net.c:889 receive_mergeable drivers/net/virtio_net.c:2495 [inline] receive_buf+0x45f/0x15e0 drivers/net/virtio_net.c:2633 virtnet_receive_packets drivers/net/virtio_net.c:2991 [inline] virtnet_receive drivers/net/virtio_net.c:3015 [inline] virtnet_poll+0x1fbc/0x2d80 drivers/net/virtio_net.c:3109 __napi_poll+0xc7/0x360 net/core/dev.c:7594 napi_poll net/core/dev.c:7657 [inline] net_rx_action+0x5f7/0xdf0 net/core/dev.c:7784 handle_softirqs+0x283/0x870 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:finish_task_switch+0x26b/0x950 kernel/sched/core.c:5193 Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 6f 8a b9 09 e8 6a af 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 58 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 RSP: 0018:ffffc900053b74b8 EFLAGS: 00000286 RAX: f4e73dcd4a096c00 RBX: 0000000000000000 RCX: f4e73dcd4a096c00 RDX: 0000000000000007 RSI: ffffffff8d7e36d5 RDI: ffffffff8bc060e0 RBP: ffffc900053b7510 R08: ffffffff8f9db437 R09: 1ffffffff1f3b686 R10: dffffc0000000000 R11: fffffbfff1f3b687 R12: ffff888027053c80 R13: dffffc0000000000 R14: ffff888026589e40 R15: ffff8880b873abd8 context_switch kernel/sched/core.c:5328 [inline] __schedule+0x17a0/0x4cc0 kernel/sched/core.c:6929 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7256 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:qlink_to_object mm/kasan/quarantine.c:140 [inline] RIP: 0010:qlink_free mm/kasan/quarantine.c:145 [inline] RIP: 0010:qlist_free_all+0x75/0x140 mm/kasan/quarantine.c:179 Code: 49 01 c4 0f 1f 44 00 00 41 0f b6 44 24 33 c1 e0 18 3d 00 00 00 f5 4d 0f 45 e5 4d 8b 64 24 08 49 8b 2f 49 63 84 24 d8 00 00 00 <49> 29 c7 4c 89 e7 4c 89 fe e8 3d e3 ff ff 66 90 48 8d 15 00 00 00 RSP: 0018:ffffc900053b78a0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc900053b78d8 RCX: ffff88813ffa6280 RDX: ffffc9001afaf000 RSI: 00000000000153a0 RDI: 00000000000153a1 RBP: ffff88814d98aa00 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f3b687 R12: ffff88813ffa6280 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888144fff180 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4946 [inline] slab_alloc_node mm/slub.c:5245 [inline] kmem_cache_alloc_lru_noprof+0x35d/0x6d0 mm/slub.c:5264 __d_alloc+0x36/0x7a0 fs/dcache.c:1690 d_alloc_pseudo+0x21/0xc0 fs/dcache.c:1821 alloc_path_pseudo fs/file_table.c:363 [inline] alloc_file_pseudo+0xcc/0x210 fs/file_table.c:379 __anon_inode_getfile fs/anon_inodes.c:166 [inline] anon_inode_getfile+0xc5/0x1a0 fs/anon_inodes.c:204 bpf_link_prime+0xfc/0x220 kernel/bpf/syscall.c:3418 bpf_raw_tp_link_attach+0x49a/0x6c0 kernel/bpf/syscall.c:4229 bpf_raw_tracepoint_open+0x1b2/0x220 kernel/bpf/syscall.c:4266 __sys_bpf+0x73e/0x860 kernel/bpf/syscall.c:6176 __do_sys_bpf kernel/bpf/syscall.c:6244 [inline] __se_sys_bpf kernel/bpf/syscall.c:6242 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6242 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f579038eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f57912f4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f57905e5fa0 RCX: 00007f579038eec9 RDX: 0000000000000018 RSI: 0000200000000140 RDI: 0000000000000011 RBP: 00007f5790411f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f57905e6038 R14: 00007f57905e5fa0 R15: 00007ffca0466238 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 1301 Comm: aoe_tx0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:update_min_vruntime kernel/sched/fair.c:761 [inline] RIP: 0010:update_curr+0x247/0x730 kernel/sched/fair.c:1229 Code: 74 0a 48 8b 7c 24 18 e8 b7 9e 90 00 49 8b 6e 58 4d 8d 7e 30 4d 89 fc 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df 41 80 3c 04 00 <74> 08 4c 89 ff e8 8f 9e 90 00 4d 8b 37 48 85 ed 4c 89 7c 24 10 0f RSP: 0018:ffffc90000007ab8 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffff8880271b5b40 RCX: 0000000000000020 RDX: 0000000000024a82 RSI: ffff8880271b5b40 RDI: 0000000000155cc0 RBP: ffff8880271b5b40 R08: ffffffff8f9db437 R09: 1ffffffff1f3b686 R10: dffffc0000000000 R11: fffffbfff1f3b687 R12: 1ffff110170c7426 R13: ffff88802a9a1ec0 R14: ffff8880b863a100 R15: ffff8880b863a130 FS: 0000000000000000(0000) GS:ffff888125d27000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f53c0c736d0 CR3: 0000000031b48000 CR4: 00000000003526f0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: enqueue_entity kernel/sched/fair.c:5250 [inline] enqueue_task_fair+0x2c2/0x2920 kernel/sched/fair.c:6966 enqueue_task+0x72/0x420 kernel/sched/core.c:2092 activate_task kernel/sched/core.c:2134 [inline] ttwu_do_activate+0x1f3/0x870 kernel/sched/core.c:3706 ttwu_queue kernel/sched/core.c:3969 [inline] try_to_wake_up+0x721/0x12b0 kernel/sched/core.c:4293 hrtimer_wakeup+0x4e/0x60 kernel/time/hrtimer.c:2013 __run_hrtimer kernel/time/hrtimer.c:1777 [inline] __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1841 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1903 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1041 [inline] __sysvec_apic_timer_interrupt+0x108/0x410 arch/x86/kernel/apic/apic.c:1058 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1052 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2034 [inline] RIP: 0010:vprintk_emit+0x49d/0x590 kernel/printk/printk.c:2422 Code: 0f 84 34 ff ff ff e8 52 ec 1f 00 fb eb 44 e8 4a ec 1f 00 e8 35 ea a7 09 4d 85 f6 74 94 e8 3b ec 1f 00 fb 48 c7 c7 80 f2 12 8e <31> f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 1b 3b RSP: 0018:ffffc900043c7240 EFLAGS: 00000293 RAX: ffffffff819f3815 RBX: ffffffff819f366e RCX: ffff8880271b5ac0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e12f280 RBP: ffffc900043c7350 R08: ffffffff8f9db437 R09: 1ffffffff1f3b686 R10: dffffc0000000000 R11: fffffbfff1f3b687 R12: 0000000000000000 R13: 000000000000002d R14: 0000000000000200 R15: 1ffff92000878e4c dev_vprintk_emit+0x337/0x3f0 drivers/base/core.c:4914 dev_printk_emit+0xe0/0x130 drivers/base/core.c:4925 __netdev_printk+0x3d7/0x4d0 net/core/dev.c:12686 netdev_warn+0x10a/0x160 net/core/dev.c:12739 ieee802154_subif_start_xmit+0x136/0x190 net/mac802154/tx.c:232 __netdev_start_xmit include/linux/netdevice.h:5248 [inline] netdev_start_xmit include/linux/netdevice.h:5257 [inline] xmit_one net/core/dev.c:3845 [inline] dev_hard_start_xmit+0x2d4/0x830 net/core/dev.c:3861 sch_direct_xmit+0x241/0x4b0 net/sched/sch_generic.c:344 __dev_xmit_skb net/core/dev.c:4152 [inline] __dev_queue_xmit+0x1857/0x3b50 net/core/dev.c:4729 dev_queue_xmit include/linux/netdevice.h:3365 [inline] tx+0x6b/0x190 drivers/block/aoe/aoenet.c:62 kthread+0x1d0/0x3e0 drivers/block/aoe/aoecmd.c:1241 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245