BUG: soft lockup in macvlan_handle_frame

Status: auto-obsoleted due to no activity on 2025/02/09 03:55
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+16fa103a3c4b0913b72c@syzkaller.appspotmail.com
First crash: 646d, last: 646d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [net?] BUG: soft lockup in macvlan_handle_frame 0 (1) 2024/11/05 10:34
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: soft lockup in macvlan_handle_frame (2) net perf prio:low 1 2 123d 146d 0/29 closed as invalid on 2026/06/03 08:10
upstream INFO: rcu detected stall in macvlan_handle_frame (2) net 1 1 829d 829d 0/29 auto-obsoleted due to no activity on 2024/07/31 19:33

Sample crash report:
watchdog: BUG: soft lockup - CPU#1 stuck for 143s! [syz.2.47:6050]
Modules linked in:
irq event stamp: 11006527
hardirqs last  enabled at (11006526): [<ffffffff8bc6e753>] irqentry_exit+0x63/0x90 kernel/entry/common.c:357
hardirqs last disabled at (11006527): [<ffffffff8bc6c2fe>] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049
softirqs last  enabled at (10907692): [<ffffffff81578ce4>] __do_softirq kernel/softirq.c:588 [inline]
softirqs last  enabled at (10907692): [<ffffffff81578ce4>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last  enabled at (10907692): [<ffffffff81578ce4>] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
softirqs last disabled at (10907695): [<ffffffff81578ce4>] __do_softirq kernel/softirq.c:588 [inline]
softirqs last disabled at (10907695): [<ffffffff81578ce4>] invoke_softirq kernel/softirq.c:428 [inline]
softirqs last disabled at (10907695): [<ffffffff81578ce4>] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
CPU: 1 UID: 0 PID: 6050 Comm: syz.2.47 Not tainted 6.12.0-rc4-syzkaller-00175-gc40dd8c47325 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5829
Code: 2b 00 74 08 4c 89 f7 e8 aa 4d 8e 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90000a183c0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000143084 RCX: ca3e8243d6909100
RDX: dffffc0000000000 RSI: ffffffff8c0adcc0 RDI: ffffffff8c610360
RBP: ffffc90000a18518 R08: ffffffff942ca8f7 R09: 1ffffffff285951e
R10: dffffc0000000000 R11: fffffbfff285951f R12: 1ffff92000143080
R13: dffffc0000000000 R14: ffffc90000a18420 R15: 0000000000000246
FS:  00007f9fbd1246c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020090000 CR3: 0000000028d92000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 macvlan_broadcast_enqueue drivers/net/macvlan.c:362 [inline]
 macvlan_handle_frame+0x8e0/0x1450 drivers/net/macvlan.c:487
 __netif_receive_skb_core+0x13e8/0x4570 net/core/dev.c:5560
 __netif_receive_skb_one_core net/core/dev.c:5664 [inline]
 __netif_receive_skb+0x12f/0x650 net/core/dev.c:5779
 process_backlog+0x662/0x15b0 net/core/dev.c:6111
 __napi_poll+0xcb/0x490 net/core/dev.c:6775
 napi_poll net/core/dev.c:6844 [inline]
 net_rx_action+0x89b/0x1240 net/core/dev.c:6966
 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:smp_call_function_many_cond+0x18a4/0x2ca0 kernel/smp.c:879
Code: 72 f0 0b 00 4c 8b 7c 24 20 4d 85 f6 75 11 e8 63 f0 0b 00 83 7c 24 18 00 75 16 e9 c6 0b 00 00 e8 52 f0 0b 00 fb 83 7c 24 18 00 <0f> 84 b5 0b 00 00 44 3b 7c 24 78 0f 83 aa 0b 00 00 4d 8d 75 08 4c
RSP: 0018:ffffc9000b1bf580 EFLAGS: 00000202
RAX: ffffffff8188e76e RBX: 0000000000000000 RCX: ffff88802e4a9e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000b1bf780 R08: ffffffff8188e740 R09: 1ffffffff2859500
R10: dffffc0000000000 R11: fffffbfff2859501 R12: dffffc0000000000
R13: ffff8880b873fc80 R14: 0000000000000200 R15: 0000000000000000
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2085 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2295
 text_poke_flush arch/x86/kernel/alternative.c:2486 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2493
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210
 static_key_enable+0x1a/0x20 kernel/jump_label.c:223
 tracepoint_add_func+0x953/0x9e0 kernel/tracepoint.c:361
 tracepoint_probe_register_prio kernel/tracepoint.c:511 [inline]
 tracepoint_probe_register+0x105/0x160 kernel/tracepoint.c:531
 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline]
 perf_trace_event_init+0x478/0x930 kernel/trace/trace_event_perf.c:202
 perf_trace_init+0x243/0x2e0 kernel/trace/trace_event_perf.c:226
 perf_tp_event_init+0x8d/0x110 kernel/events/core.c:10357
 perf_try_init_event+0x146/0x810 kernel/events/core.c:11891
 perf_init_event kernel/events/core.c:11977 [inline]
 perf_event_alloc+0x135f/0x2310 kernel/events/core.c:12259
 __do_sys_perf_event_open kernel/events/core.c:12766 [inline]
 __se_sys_perf_event_open+0xb1f/0x3870 kernel/events/core.c:12657
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9fbc37e719
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:00007f9fbd124038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f9fbc535f80 RCX: 00007f9fbc37e719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007f9fbc3f132e R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9fbc535f80 R15: 00007ffd56eb9978
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5065 Comm: kworker/u8:7 Not tainted 6.12.0-rc4-syzkaller-00175-gc40dd8c47325 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-8:0)
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x19f3/0x2ca0 kernel/smp.c:884
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 56 f3 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 01 ef 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 e5 ee
RSP: 0018:ffffc9000f30e300 EFLAGS: 00000293
RAX: ffffffff8188e8db RBX: 1ffff110170e8919 RCX: ffff888034589e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000f30e500 R08: ffffffff8188e8aa R09: 1ffff92001e61c50
R10: dffffc0000000000 R11: ffffffff81431160 R12: dffffc0000000000
R13: ffff8880b87448c8 R14: ffff8880b863fc80 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005573c7fcdb10 CR3: 000000007a1b6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:938 [inline]
 flush_tlb_mm_range+0x329/0x5c0 arch/x86/mm/tlb.c:1024
 flush_tlb_page arch/x86/include/asm/tlbflush.h:254 [inline]
 ptep_clear_flush+0x11a/0x170 mm/pgtable-generic.c:101
 page_vma_mkclean_one+0x58a/0x9a0 mm/rmap.c:1044
 page_mkclean_one+0x280/0x420 mm/rmap.c:1085
 rmap_walk_file+0x52f/0x9f0 mm/rmap.c:2700
 rmap_walk mm/rmap.c:2718 [inline]
 folio_mkclean+0x262/0x440 mm/rmap.c:1117
 folio_clear_dirty_for_io+0x22b/0xd00 mm/page-writeback.c:3024
 mpage_submit_folio+0x88/0x230 fs/ext4/inode.c:1902
 mpage_map_and_submit_buffers fs/ext4/inode.c:2167 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2299 [inline]
 ext4_do_writepages+0x1d1d/0x3d20 fs/ext4/inode.c:2724
 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2813
 do_writepages+0x35d/0x870 mm/page-writeback.c:2683
 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1658
 writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1954
 __writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2025
 wb_writeback+0x42f/0xbd0 fs/fs-writeback.c:2136
 wb_check_old_data_flush fs/fs-writeback.c:2240 [inline]
 wb_do_writeback fs/fs-writeback.c:2293 [inline]
 wb_workfn+0xba1/0x1090 fs/fs-writeback.c:2321
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/01 03:54 bpf c40dd8c47325 96eb609f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce BUG: soft lockup in macvlan_handle_frame
* Struck through repros no longer work on HEAD.