Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/11/13 | upstream (ToT) | 14b6320953a3 | C | [report] INFO: rcu detected stall in tc_modify_qdisc |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/11/13 | upstream (ToT) | 14b6320953a3 | C | [report] INFO: rcu detected stall in tc_modify_qdisc |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-5.15 | INFO: rcu detected stall in wb_workfn origin:lts-only | syz | error | 4 | 65d | 137d | 0/3 | upstream: reported syz repro on 2024/07/29 15:58 | |
upstream | BUG: soft lockup in wb_workfn kernel | 1 | 1949d | 1945d | 0/28 | auto-closed as invalid on 2019/11/11 12:45 | |||
upstream | INFO: rcu detected stall in wb_workfn (2) fs | 1 | 900d | 900d | 0/28 | auto-closed as invalid on 2022/09/25 22:53 | |||
upstream | INFO: rcu detected stall in wb_workfn mm | 2 | 1143d | 1150d | 0/28 | auto-closed as invalid on 2022/01/25 21:50 | |||
linux-4.19 | INFO: rcu detected stall in wb_workfn | 1 | 849d | 849d | 0/1 | auto-obsoleted due to no activity on 2022/12/16 09:39 | |||
upstream | INFO: rcu detected stall in wb_workfn (3) hfs ext4 block | 3 | 481d | 563d | 0/28 | auto-obsoleted due to no activity on 2023/11/18 21:40 | |||
linux-4.14 | INFO: rcu detected stall in wb_workfn | 1 | 1882d | 1882d | 0/1 | auto-closed as invalid on 2020/02/17 08:22 |
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2631 jiffies s: 4517 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 51 Comm: kworker/u4:3 Not tainted 6.1.116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: writeback wb_workfn (flush-8:0) RIP: 0010:trace_lock_release include/trace/events/lock.h:69 [inline] RIP: 0010:lock_release+0xcf/0xa20 kernel/locking/lockdep.c:5673 Code: 0d 0f 86 c2 05 00 00 89 db 48 89 d8 48 c1 e8 06 48 8d 3c c5 28 08 9a 8e be 08 00 00 00 e8 b9 5d 77 00 48 0f a3 1d a9 4f 2f 0d <73> 0d e8 5a bf 08 00 84 c0 0f 84 c5 05 00 00 48 c7 c0 e4 3c 9a 8e RSP: 0018:ffffc900001e0b60 EFLAGS: 00000057 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff816ab877 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e9a0828 RBP: ffffc900001e0ca0 R08: dffffc0000000000 R09: fffffbfff1d34106 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200003c178 R13: ffffffff88d033db R14: dffffc0000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005583289b4950 CR3: 000000007f859000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline] _raw_spin_unlock+0x12/0x40 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] advance_sched+0x68b/0x970 net/sched/sch_taprio.c:749 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline] __sysvec_apic_timer_interrupt+0x158/0x5b0 arch/x86/kernel/apic/apic.c:1124 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1118 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 82 4d 30 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 87 b8 ac f6 65 8b 05 08 a8 50 75 85 c0 74 3f 48 c7 04 24 0e 36 RSP: 0018:ffffc90000bc6b80 EFLAGS: 00000206 RAX: 26ac3d9a41269b00 RBX: 1ffff92000178d74 RCX: ffffffff816b028a RDX: dffffc0000000000 RSI: ffffffff8b0c01c0 RDI: 0000000000000001 RBP: ffffc90000bc6c10 R08: dffffc0000000000 R09: fffffbfff2246261 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff92000178d70 R14: ffffc90000bc6ba0 R15: 0000000000000246 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] __folio_start_writeback+0x57f/0x10c0 mm/page-writeback.c:3022 ext4_bio_write_page+0x352/0x2ac0 fs/ext4/page-io.c:453 mpage_submit_page+0x18d/0x230 fs/ext4/inode.c:2141 mpage_map_and_submit_buffers fs/ext4/inode.c:2386 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2525 [inline] ext4_writepages+0x2076/0x3de0 fs/ext4/inode.c:2854 do_writepages+0x3a2/0x670 mm/page-writeback.c:2491 __writeback_single_inode+0x15d/0x11e0 fs/fs-writeback.c:1612 writeback_sb_inodes+0xc2b/0x1b20 fs/fs-writeback.c:1903 __writeback_inodes_wb+0x114/0x400 fs/fs-writeback.c:1974 wb_writeback+0x4b1/0xe10 fs/fs-writeback.c:2079 wb_check_old_data_flush fs/fs-writeback.c:2179 [inline] wb_do_writeback fs/fs-writeback.c:2232 [inline] wb_workfn+0xbec/0x1020 fs/fs-writeback.c:2260 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439 kthread+0x28d/0x320 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/11/09 15:06 | linux-6.1.y | d7039b844a1c | 6b856513 | .config | console log | report | syz / log | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan | INFO: rcu detected stall in wb_workfn | ||
2024/10/24 21:17 | linux-6.1.y | 7ec6f9fa3d97 | 0d144d1a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | BUG: soft lockup in wb_workfn |