watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [udevd:2963] Modules linked in: irq event stamp: 0 hardirqs last enabled at (0): [<0000000000000000>] 0x0 hardirqs last disabled at (0): [] copy_process+0x2013/0x6fe0 kernel/fork.c:2173 softirqs last enabled at (0): [] copy_process+0x205b/0x6fe0 kernel/fork.c:2177 softirqs last disabled at (0): [<0000000000000000>] 0x0 CPU: 0 PID: 2963 Comm: udevd Not tainted 5.18.0-rc3-next-20220422-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvm_wait+0x98/0x100 arch/x86/kernel/kvm.c:1058 Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 23 91 4b 00 eb 07 0f 00 2d da b1 94 08 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 56 8f 4b 00 8b 74 24 0c RSP: 0018:ffffc90000007330 EFLAGS: 00000246 RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffffffff1b73199 RDX: 0000000000000000 RSI: ffffffff81807171 RDI: ffffffff8134dffd RBP: ffff88807d644448 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81807158 R11: 0000000000000001 R12: 0000000000000000 R13: ffffed100fac8889 R14: 0000000000000001 R15: ffff8880b9c3ae40 FS: 00007fbc97b8d840(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbc977f6260 CR3: 000000002363c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:603 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x8c7/0xb50 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x200/0x2a0 kernel/locking/spinlock_debug.c:115 spin_lock include/linux/spinlock.h:354 [inline] task_lock include/linux/sched/task.h:170 [inline] __get_task_comm+0x23/0x50 fs/exec.c:1219 __set_page_owner_handle mm/page_owner.c:174 [inline] __set_page_owner+0x253/0x380 mm/page_owner.c:192 prep_new_page mm/page_alloc.c:2394 [inline] get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4135 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5356 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2273 alloc_slab_page mm/slub.c:1797 [inline] allocate_slab+0x26c/0x3c0 mm/slub.c:1942 new_slab mm/slub.c:2002 [inline] ___slab_alloc+0x985/0xd90 mm/slub.c:3002 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3089 slab_alloc_node mm/slub.c:3180 [inline] __kmalloc_node_track_caller+0x2cb/0x360 mm/slub.c:4952 kmalloc_reserve net/core/skbuff.c:354 [inline] __alloc_skb+0xde/0x340 net/core/skbuff.c:426 __napi_alloc_skb+0x70/0x310 net/core/skbuff.c:568 napi_alloc_skb include/linux/skbuff.h:3194 [inline] page_to_skb+0x17d/0xc10 drivers/net/virtio_net.c:464 receive_mergeable drivers/net/virtio_net.c:1066 [inline] receive_buf+0xdc5/0x54c0 drivers/net/virtio_net.c:1205 virtnet_receive drivers/net/virtio_net.c:1500 [inline] virtnet_poll+0x5cd/0x11a0 drivers/net/virtio_net.c:1609 __napi_poll+0xb3/0x6e0 net/core/dev.c:6443 napi_poll net/core/dev.c:6510 [inline] net_rx_action+0x8ec/0xc60 net/core/dev.c:6597 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 common_interrupt+0xa9/0xc0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:640 RIP: 0010:memset+0x2a/0x40 mm/kasan/shadow.c:47 Code: 41 55 41 89 f5 41 54 49 89 d4 ba 01 00 00 00 55 48 8b 4c 24 18 4c 89 e6 48 89 fd e8 50 f8 ff ff 84 c0 74 13 4c 89 e2 44 89 ee <48> 89 ef 5d 41 5c 41 5d e9 e9 e4 5b 02 5d 31 c0 41 5c 41 5d c3 90 RSP: 0018:ffffc9000b4c7408 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 000000000000000a RCX: ffffffff83faa502 RDX: 000000000000000a RSI: 0000000000000000 RDI: ffff888013ab032e RBP: ffff888013ab032e R08: 0000000000000001 R09: ffff888013ab0337 R10: ffffed1002756066 R11: 0000000000000001 R12: 000000000000000a R13: 0000000000000000 R14: ffff888013ab0308 R15: 0000000000000007 strscpy_pad+0x62/0x70 lib/string_helpers.c:792 __get_task_comm+0x35/0x50 fs/exec.c:1221 __set_page_owner_handle mm/page_owner.c:174 [inline] __set_page_owner+0x253/0x380 mm/page_owner.c:192 prep_new_page mm/page_alloc.c:2394 [inline] get_page_from_freelist+0xba2/0x3e00 mm/page_alloc.c:4135 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5356 alloc_pages+0x1aa/0x310 mm/mempolicy.c:2273 pmd_alloc_one include/asm-generic/pgalloc.h:126 [inline] __pmd_alloc+0x3b/0x5c0 mm/memory.c:5215 pmd_alloc include/linux/mm.h:2249 [inline] copy_pmd_range mm/memory.c:1144 [inline] copy_pud_range mm/memory.c:1201 [inline] copy_p4d_range mm/memory.c:1225 [inline] copy_page_range+0x28e1/0x3b70 mm/memory.c:1323 dup_mmap kernel/fork.c:699 [inline] dup_mm+0xa19/0x1330 kernel/fork.c:1519 copy_mm kernel/fork.c:1571 [inline] copy_process+0x3b14/0x6fe0 kernel/fork.c:2232 kernel_clone+0xe7/0xab0 kernel/fork.c:2637 __do_sys_clone+0xc8/0x110 kernel/fork.c:2754 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fbc977030f2 Code: ed 0f 85 11 01 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 a2 00 00 00 41 89 c5 85 c0 0f 85 af 00 00 RSP: 002b:00007ffe60b6e5b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000562afbf62e10 RCX: 00007fbc977030f2 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000562afbf50910 R10: 00007fbc97b8db10 R11: 0000000000000246 R12: 0000000000000000 R13: 0000562afbf62e10 R14: 0000000000000000 R15: 0000562afbf50910 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:116 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:559 ---------------- Code disassembly (best guess): 0: fa cli 1: 83 e2 07 and $0x7,%edx 4: 38 d0 cmp %dl,%al 6: 7f 04 jg 0xc 8: 84 c0 test %al,%al a: 75 63 jne 0x6f c: 0f b6 07 movzbl (%rdi),%eax f: 40 38 c6 cmp %al,%sil 12: 74 35 je 0x49 14: 48 83 c4 10 add $0x10,%rsp 18: c3 retq 19: c3 retq 1a: e8 23 91 4b 00 callq 0x4b9142 1f: eb 07 jmp 0x28 21: 0f 00 2d da b1 94 08 verw 0x894b1da(%rip) # 0x894b202 28: fb sti 29: f4 hlt * 2a: 48 83 c4 10 add $0x10,%rsp <-- trapping instruction 2e: c3 retq 2f: 89 74 24 0c mov %esi,0xc(%rsp) 33: 48 89 3c 24 mov %rdi,(%rsp) 37: e8 56 8f 4b 00 callq 0x4b8f92 3c: 8b 74 24 0c mov 0xc(%rsp),%esi