Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/10/31 | linux-6.1.y (ToT) | 7ec6f9fa3d97 | C | [report] BUG: workqueue lockup |
2024/10/31 | upstream (ToT) | 0fc810ae3ae1 | C | Didn't crash |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/10/31 | linux-6.1.y (ToT) | 7ec6f9fa3d97 | C | [report] BUG: workqueue lockup |
2024/10/31 | upstream (ToT) | 0fc810ae3ae1 | C | Didn't crash |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | INFO: rcu detected stall in mld_ifc_work net | C | inconclusive | 1 | 1027d | 1027d | 22/28 | fixed on 2023/02/24 13:50 | |
linux-5.15 | INFO: rcu detected stall in mld_ifc_work origin:lts-only | syz | 2 | 5d04h | 87d | 0/3 | upstream: reported syz repro on 2024/09/10 22:08 | ||
android-5-15 | BUG: soft lockup in mld_ifc_work | 1 | 200d | 200d | 0/2 | auto-obsoleted due to no activity on 2024/08/19 06:49 | |||
linux-6.1 | BUG: soft lockup in mld_ifc_work | 1 | 549d | 549d | 0/3 | auto-obsoleted due to no activity on 2023/09/15 05:45 | |||
linux-5.15 | BUG: soft lockup in mld_ifc_work | 1 | 505d | 505d | 0/3 | auto-obsoleted due to no activity on 2023/10/28 19:55 | |||
upstream | BUG: soft lockup in mld_ifc_work (2) wireless | C | 2 | 210d | 222d | 26/28 | fixed on 2024/08/06 11:02 | ||
upstream | BUG: soft lockup in mld_ifc_work net | 6 | 502d | 477d | 0/28 | auto-obsoleted due to no activity on 2023/10/31 17:53 |
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P1516/2:b..l (detected by 0, t=10502 jiffies, g=4065, q=247 ncpus=2) task:kworker/0:2 state:R running task stack:0 pid:1516 ppid:2 flags:0x00000008 Workqueue: mld mld_ifc_work Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 preempt_schedule_irq+0x8c/0x1b8 kernel/sched/core.c:6870 arm64_preempt_schedule_irq arch/arm64/kernel/entry-common.c:265 [inline] __el1_irq arch/arm64/kernel/entry-common.c:474 [inline] el1_interrupt+0x4c/0x68 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 nf_conntrack_confirm include/net/netfilter/nf_conntrack_core.h:68 [inline] ipv6_confirm+0x454/0x594 net/netfilter/nf_conntrack_proto.c:397 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0xc8/0x1f4 net/netfilter/core.c:614 nf_hook+0x260/0x3e8 include/linux/netfilter.h:257 NF_HOOK_COND include/linux/netfilter.h:290 [inline] ip6_output+0x240/0x594 net/ipv6/ip6_output.c:237 dst_output include/net/dst.h:444 [inline] NF_HOOK+0x160/0x4f0 include/linux/netfilter.h:302 mld_sendpack+0x90c/0x1364 net/ipv6/mcast.c:1820 mld_send_cr net/ipv6/mcast.c:2121 [inline] mld_ifc_work+0x848/0xc20 net/ipv6/mcast.c:2653 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2292 worker_thread+0x8e4/0xfec kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 rcu: rcu_preempt kthread starved for 10500 jiffies! g4065 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:0 pid:16 ppid:2 flags:0x00000008 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5241 [inline] __schedule+0xef4/0x1d44 kernel/sched/core.c:6558 schedule+0xc4/0x170 kernel/sched/core.c:6634 schedule_timeout+0x1d8/0x344 kernel/time/timer.c:1965 rcu_gp_fqs_loop+0x2cc/0x1538 kernel/rcu/tree.c:1706 rcu_gp_kthread+0xc0/0x308 kernel/rcu/tree.c:1905 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 rcu: Stack dump where RCU GP kthread last ran: CPU: 0 PID: 4320 Comm: syz-executor625 Not tainted 6.1.114-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline] pc : _raw_spin_unlock_irq+0x44/0x90 kernel/locking/spinlock.c:202 lr : __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] lr : _raw_spin_unlock_irq+0x3c/0x90 kernel/locking/spinlock.c:202 sp : ffff800021177500 x29: ffff800021177500 x28: 1fffe00019e9411a x27: 1ffff0000422ef90 x26: 1fffe00019e9411b x25: 1ffff0000422eea8 x24: dfff800000000000 x23: 0000000000000000 x22: ffff0000cf4a0000 x21: ffff0000cf4a08d0 x20: ffff0000cf4a08d8 x19: ffff0000c819dc80 x18: 0000000000000000 x17: 0000000000000000 x16: ffff800008305dfc x15: 0000ffff9f18dab8 x14: 1ffff00002b3a0b0 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000ff0100 x10: 0000000000000003 x9 : 0000000000000000 x8 : 00000000000000e0 x7 : ffff8000081f47b0 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff800021177420 x1 : ffff8000123ec6e0 x0 : ffff80019e3d5000 Call trace: arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] _raw_spin_unlock_irq+0x44/0x90 kernel/locking/spinlock.c:202 spin_unlock_irq include/linux/spinlock.h:401 [inline] __set_current_blocked+0x1fc/0x258 kernel/signal.c:3059 set_current_blocked+0x50/0x60 kernel/signal.c:3043 restore_sigframe arch/arm64/kernel/signal.c:643 [inline] __arm64_sys_rt_sigreturn+0x344/0x2658 arch/arm64/kernel/signal.c:697 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/10/28 06:46 | linux-6.1.y | 7ec6f9fa3d97 | 65e8686b | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci2-linux-6-1-kasan-arm64 | INFO: rcu detected stall in mld_ifc_work |