RBP: 00007fd8e8667000 R08: 000000000000519e R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffd72029250 R14: 0000000000000001 R15: 00007fd8e881fdd0 watchdog: BUG: soft lockup - CPU#1 stuck for 226s! [dhcpcd:5290] Modules linked in: irq event stamp: 813858 hardirqs last enabled at (813857): [] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:507 [inline] hardirqs last enabled at (813857): [] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:542 [inline] hardirqs last enabled at (813857): [] irqentry_exit+0x24d/0x970 kernel/entry/common.c:164 hardirqs last disabled at (813858): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1061 softirqs last enabled at (813856): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (813856): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (813856): [] __irq_exit_rcu+0x162/0x210 kernel/softirq.c:735 softirqs last disabled at (813763): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (813763): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (813763): [] __irq_exit_rcu+0x162/0x210 kernel/softirq.c:735 CPU: 1 UID: 0 PID: 5290 Comm: dhcpcd Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:srso_alias_safe_ret+0x0/0x7 arch/x86/lib/retpoline.S:210 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <48> 8d 64 24 08 c3 cc e8 f4 ff ff ff 0f 0b cc cc cc cc cc cc cc cc RSP: 0018:ffffc900034e75e0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81fc0b3d RDX: ffff88802a950000 RSI: ffffffff81fc0b17 RDI: ffff88802a950000 RBP: ffff8880b84431c0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000003 R13: ffffed1017088639 R14: 0000000000000001 R15: ffff8880b853c740 FS: 00007fd8e8731780(0000) GS:ffff888124484000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd8e866fff8 CR3: 000000002c815000 CR4: 0000000000350ef0 Call Trace: srso_alias_return_thunk+0x5/0xfbef5 arch/x86/lib/retpoline.S:220 native_pause arch/x86/include/asm/vdso/processor.h:13 [inline] cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline] csd_lock_wait kernel/smp.c:342 [inline] smp_call_function_many_cond+0x587/0x1700 kernel/smp.c:892 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1057 __flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline] flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline] flush_tlb_mm_range+0x45f/0x16f0 arch/x86/mm/tlb.c:1451 tlb_flush arch/x86/include/asm/tlb.h:23 [inline] tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:509 [inline] tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:499 [inline] tlb_flush_mmu mm/mmu_gather.c:423 [inline] tlb_finish_mmu+0x3fe/0x810 mm/mmu_gather.c:549 unmap_region+0x2d9/0x3b0 mm/vma.c:491 vms_clear_ptes mm/vma.c:1303 [inline] vms_complete_munmap_vmas+0xa4b/0xdd0 mm/vma.c:1345 do_vmi_align_munmap+0x44f/0x5f0 mm/vma.c:1604 do_vmi_munmap+0x1f8/0x3e0 mm/vma.c:1652 __vm_munmap+0x196/0x390 mm/vma.c:3285 __do_sys_munmap mm/mmap.c:1079 [inline] __se_sys_munmap mm/mmap.c:1076 [inline] __x64_sys_munmap+0x59/0x80 mm/mmap.c:1076 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd8e8832097 Code: 73 01 c3 48 8b 0d 61 2d 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 2d 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007ffd72029218 EFLAGS: 00000202 ORIG_RAX: 000000000000000b RAX: ffffffffffffffda RBX: 0000000000009000 RCX: 00007fd8e8832097 RDX: 00007fd8e881fdd0 RSI: 0000000000009000 RDI: 00007fd8e8667000 RBP: 00007fd8e8667000 R08: 000000000000519e R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffd72029250 R14: 0000000000000001 R15: 00007fd8e881fdd0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 20264 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:87 [inline] RIP: 0010:do_raw_spin_lock+0xac/0x260 kernel/locking/spinlock_debug.c:115 Code: 01 00 00 8b 43 04 3d ad 4e ad de 0f 85 53 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 6b 10 4c 89 ea 48 c1 ea 03 80 3c 02 00 <0f> 85 8e 01 00 00 48 8b 43 10 65 48 3b 05 4a 03 25 12 0f 84 34 01 RSP: 0018:ffffc90000007d40 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffff88807b6da2a8 RCX: 0000000000000002 RDX: 1ffff1100f6db457 RSI: ffffffff8def6e90 RDI: ffff88807b6da2ac RBP: ffff88807915e000 R08: 0000000083b6cd3f R09: 0000000000000aec R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff92000000fa9 R13: ffff88807b6da2b8 R14: dffffc0000000000 R15: ffff8880b8428650 FS: 0000555587dda500(0000) GS:ffff888124384000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555587a019f8 CR3: 000000005973b000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: spin_lock include/linux/spinlock.h:342 [inline] advance_sched+0xe5/0xd20 net/sched/sch_taprio.c:930 __run_hrtimer kernel/time/hrtimer.c:1930 [inline] __hrtimer_run_queues+0x470/0xa00 kernel/time/hrtimer.c:1994 hrtimer_interrupt+0x3e5/0x940 kernel/time/hrtimer.c:2113 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] __sysvec_apic_timer_interrupt+0x10b/0x460 arch/x86/kernel/apic/apic.c:1067 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline] sysvec_apic_timer_interrupt+0x9e/0xc0 arch/x86/kernel/apic/apic.c:1061 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:188 [inline] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:206 Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 2a 6e 59 f6 48 89 df e8 02 be 59 f6 e8 0d d1 85 f6 fb bf 01 00 00 00 22 8a 49 f6 65 8b 05 0b be 7e 08 85 c0 74 06 5b e9 dc 3e 85 f5 RSP: 0018:ffffc90006877758 EFLAGS: 00000202 RAX: 00000000000341b3 RBX: ffff88802b05cb60 RCX: 0000000000000040 RDX: 0000000000000000 RSI: ffffffff8df1c3c5 RDI: 0000000000000001 RBP: ffff88802b05cb58 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88802b05cb60 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 spin_unlock_irq include/linux/spinlock.h:402 [inline] filemap_remove_folio+0x104/0x2a0 mm/filemap.c:259 truncate_inode_folio+0x49/0x70 mm/truncate.c:176 shmem_undo_range+0x3ae/0x1570 mm/shmem.c:1145 shmem_truncate_range mm/shmem.c:1277 [inline] shmem_evict_inode+0x3f3/0xc40 mm/shmem.c:1407 evict+0x3c2/0xad0 fs/inode.c:841 iput_final fs/inode.c:1960 [inline] iput.part.0+0x605/0xf50 fs/inode.c:2009 iput+0x35/0x40 fs/inode.c:1975 filename_unlinkat+0x466/0x730 fs/namei.c:5572 __do_sys_unlink fs/namei.c:5603 [inline] __se_sys_unlink fs/namei.c:5600 [inline] __x64_sys_unlink+0x46/0x70 fs/namei.c:5600 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd3aa19bf47 Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fff6efbe558 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd3aa19bf47 RDX: 00007fff6efbe580 RSI: 00007fff6efbe610 RDI: 00007fff6efbe610 RBP: 00007fff6efbe610 R08: 00007fff6efbf610 R09: 00000000ffffffff R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff6efbf6a0 R13: 00007fd3aa2321ca R14: 00000000000d1bdd R15: 00007fff6efbf6e0