watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [kworker/1:9:1010]
Modules linked in:
CPU: 1 PID: 1010 Comm: kworker/1:9 Not tainted 5.4.290-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events fqdir_work_fn
RIP: 0010:__read_once_size include/linux/compiler.h:268 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:155 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x21/0x50 kernel/kcov.c:187
Code: 00 00 90 90 00 00 90 90 00 55 48 89 e5 48 8b 45 08 65 48 8b 0d a0 f2 9c 7e 65 8b 15 a5 f2 9c 7e f7 c2 00 01 1f 00 74 02 5d c3 <8b> 91 00 0a 00 00 83 fa 02 75 f3 48 8b 91 08 0a 00 00 48 8b 32 48
RSP: 0018:ffff8881e5b7fbd0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff815adbe1 RBX: 1ffff1103cb6ff87 RCX: ffff8881e63ede80
RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8881e5b7fbd0 R08: ffffffff815adbb3 R09: ffffed103edcb189
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103cb6ff80
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a96363c2b CR3: 00000001f24c1000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 </IRQ>
 csd_lock_wait kernel/smp.c:109 [inline]
 smp_call_function_single+0x251/0x4a0 kernel/smp.c:311
 rcu_barrier+0x22a/0x370 kernel/rcu/tree.c:2941
 fqdir_work_fn+0x57/0xe0 net/ipv4/inet_fragment.c:159
 process_one_work+0x781/0xd50 kernel/workqueue.c:2290
 worker_thread+0xa27/0x1360 kernel/workqueue.c:2436
 kthread+0x321/0x3a0 kernel/kthread.c:288
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1631 Comm: syz.1.328 Not tainted 5.4.290-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:66 [inline]
RIP: 0010:halt arch/x86/include/asm/irqflags.h:112 [inline]
RIP: 0010:kvm_wait+0xea/0x150 arch/x86/kernel/kvm.c:847
Code: 42 0f b6 04 20 84 c0 75 6b 41 0f b6 45 00 3a 44 24 14 75 26 41 f7 c7 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d c7 79 96 03 f4 <eb> 0e 0f 1f 44 00 00 0f 00 2d b8 79 96 03 fb f4 4c 89 7c 24 18 ff
RSP: 0018:ffff8881d709f000 EFLAGS: 00000046
RAX: 0000000000000003 RBX: 1ffff1103ae13e04 RCX: ffffffff814d1fa4
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8881e11d9120
RBP: ffff8881d709f0b0 R08: dffffc0000000000 R09: ffffed103c23b225
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff8881e11d9120 R14: ffff8881d709f040 R15: 0000000000000046
FS:  00007fe5a035e6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 00000001d259b000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 pv_wait arch/x86/include/asm/paravirt.h:652 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x72f/0xc70 kernel/locking/qspinlock.c:507
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:642 [inline]
 queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:50 [inline]
 queued_spin_lock include/asm-generic/qspinlock.h:81 [inline]
 do_raw_spin_lock_flags include/linux/spinlock.h:193 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:159
 trie_delete_elem+0x96/0x790 kernel/bpf/lpm_trie.c:465
 bpf_prog_1db1603a7cfa36fb+0x2d2/0x1000
 bpf_call_func include/linux/filter.h:627 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1341 [inline]
 bpf_trace_run4+0x149/0x310 kernel/trace/bpf_trace.c:1381
 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:193
 trace_mm_page_alloc include/trace/events/kmem.h:193 [inline]
 __alloc_pages_nodemask+0x7a5/0x840 mm/page_alloc.c:4922
 alloc_slab_page+0x3b/0x400 mm/slub.c:343
 allocate_slab mm/slub.c:1683 [inline]
 new_slab+0x98/0x430 mm/slub.c:1749
 new_slab_objects mm/slub.c:2505 [inline]
 ___slab_alloc+0x2e0/0x460 mm/slub.c:2667
 __slab_alloc+0x63/0xa0 mm/slub.c:2707
 slab_alloc_node mm/slub.c:2792 [inline]
 slab_alloc mm/slub.c:2837 [inline]
 __kmalloc+0x175/0x2e0 mm/slub.c:3909
 __kmalloc_node include/linux/slab.h:422 [inline]
 kmalloc_node include/linux/slab.h:599 [inline]
 lpm_trie_node_alloc kernel/bpf/lpm_trie.c:288 [inline]
 trie_update_elem+0x1be/0xd30 kernel/bpf/lpm_trie.c:330
 map_update_elem kernel/bpf/syscall.c:970 [inline]
 __do_sys_bpf kernel/bpf/syscall.c:2879 [inline]
 __se_sys_bpf+0x9344/0xbd60 kernel/bpf/syscall.c:2849
 __x64_sys_bpf+0x7b/0x90 kernel/bpf/syscall.c:2849
 do_syscall_64+0xd8/0x170 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7fe5a1d16169
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:00007fe5a035e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fe5a1f3e080 RCX: 00007fe5a1d16169
RDX: 0000000000000020 RSI: 00002000000004c0 RDI: 0000000000000002
RBP: 00007fe5a1d98a68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fe5a1f3e080 R15: 00007ffe323d90c8