watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor.3:31772] Modules linked in: irq event stamp: 30696 hardirqs last enabled at (30695): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631 hardirqs last disabled at (30696): [] irqentry_enter+0x1d/0x50 kernel/entry/common.c:343 softirqs last enabled at (3178): [] asm_call_irq_on_stack+0xf/0x20 softirqs last disabled at (3123): [] asm_call_irq_on_stack+0xf/0x20 CPU: 1 PID: 31772 Comm: syz-executor.3 Not tainted 5.9.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:csd_lock_wait kernel/smp.c:227 [inline] RIP: 0010:smp_call_function_single+0x1b0/0x4b0 kernel/smp.c:512 Code: 10 8b 7c 24 1c 48 8d 74 24 40 48 89 44 24 50 48 8b 44 24 08 48 89 44 24 58 e8 0c fb ff ff 41 89 c5 eb 07 e8 32 35 0b 00 f3 90 <44> 8b 64 24 48 31 ff 41 83 e4 01 44 89 e6 e8 6d 2d 0b 00 45 85 e4 RSP: 0000:ffffc9000182f9a0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 1ffff92000305f38 RCX: ffffffff8164d193 RDX: ffff88801b4eb480 RSI: ffffffff8164d17e RDI: 0000000000000005 RBP: ffffc9000182fa80 R08: 0000000000000001 R09: ffffffff8ebac677 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000008 FS: 0000000002065940(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000118c000 CR3: 00000000288b0000 CR4: 00000000001506e0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: smp_call_function_many_cond+0x25f/0x9d0 kernel/smp.c:648 on_each_cpu_cond_mask+0x50/0x160 kernel/smp.c:899 __flush_tlb_others arch/x86/include/asm/paravirt.h:74 [inline] flush_tlb_others arch/x86/mm/tlb.c:823 [inline] flush_tlb_mm_range+0x2ac/0x3d0 arch/x86/mm/tlb.c:910 flush_tlb_page arch/x86/include/asm/tlbflush.h:235 [inline] ptep_clear_flush+0x12b/0x160 mm/pgtable-generic.c:97 wp_page_copy+0x8e8/0x23b0 mm/memory.c:2890 do_wp_page+0x3fe/0x1930 mm/memory.c:3134 handle_pte_fault mm/memory.c:4392 [inline] __handle_mm_fault mm/memory.c:4509 [inline] handle_mm_fault+0x2f94/0x55d0 mm/memory.c:4607 do_user_addr_fault+0x55b/0xb40 arch/x86/mm/fault.c:1372 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0x9e/0x180 arch/x86/mm/fault.c:1485 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:583 RIP: 0033:0x410b26 Code: 88 48 20 48 8b 4c 24 50 80 60 20 01 48 89 48 10 48 8b 4c 24 60 48 89 48 18 8b 4c 24 5c 89 48 24 31 c0 48 8b 8c 04 20 01 00 00 <48> 89 8c 02 50 bf 18 01 48 83 c0 08 48 83 f8 48 75 e6 e8 f3 36 ff RSP: 002b:00007fff07220b10 EFLAGS: 00010287 RAX: 0000000000000008 RBX: 0000000000000064 RCX: 0000000000000000 RDX: 00000000000000a8 RSI: 00007f22dc86adb0 RDI: 000000000118bfd0 RBP: 000000000118bfc8 R08: 0000000000000000 R09: 00007f22dc86b700 R10: 00007f22dc86b9d0 R11: 0000000000000202 R12: 0000000000000d26 R13: 0000000000000001 R14: 0000000000000003 R15: 000000000118bfd4 Sending NMI from CPU 1 to CPUs 0: