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| Kernel | Title | Rank 🛈 | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| upstream | INFO: rcu detected stall in sys_process_vm_writev (3) block cgroups | 1 | 1 | 417d | 417d | 0/29 | auto-obsoleted due to no activity on 2024/09/14 02:49 | |||
| upstream | INFO: rcu detected stall in sys_process_vm_writev mm | 1 | 2 | 1438d | 1471d | 0/29 | auto-closed as invalid on 2021/11/28 06:21 | |||
| linux-4.19 | BUG: soft lockup in sys_process_vm_writev | 1 | 1 | 1093d | 1093d | 0/1 | auto-obsoleted due to no activity on 2022/12/08 06:45 |
cdc_wdm 3-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 3-1:1.0: nonzero urb status received: -71 cdc_wdm 3-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 3-1:1.0: nonzero urb status received: -71 cdc_wdm 3-1:1.0: wdm_int_callback - 0 bytes rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8241/1:b..l rcu: (detected by 1, t=10503 jiffies, g=355485, q=132 ncpus=2) task:syz-executor.3 state:R running task stack:26256 pid:8241 ppid:5056 flags:0x00004002 Call Trace: <TASK> context_switch kernel/sched/core.c:5343 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6669 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:6981 irqentry_exit+0x35/0x80 kernel/entry/common.c:433 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:lock_is_held_type+0x0/0x140 kernel/locking/lockdep.c:5761 Code: 48 c7 c6 40 6d 4c 8a 48 c7 c7 a0 6a 4c 8a 89 44 24 04 e8 83 36 3b f7 0f 0b 8b 44 24 04 eb bd 66 66 2e 0f 1f 84 00 00 00 00 00 <f3> 0f 1e fa 41 57 41 56 41 55 41 bd ff ff ff ff 41 54 55 53 48 83 RSP: 0018:ffffc900056df3c0 EFLAGS: 00000246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000dc4c000 RDX: 0000000000040000 RSI: 00000000ffffffff RDI: ffffffff8c7e1998 RBP: ffff888022570000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000094001 R12: ffff88814ba27800 R13: 00000000202ca000 R14: ffffea0001386fc0 R15: 00fff00000000000 lock_is_held include/linux/lockdep.h:288 [inline] task_css include/linux/cgroup.h:437 [inline] blkcg_css.part.0+0xd2/0x1d0 block/blk-cgroup.c:110 blkcg_css block/blk-cgroup.c:2118 [inline] blk_cgroup_congested+0x11b/0x2a0 block/blk-cgroup.c:2116 __folio_throttle_swaprate+0x82/0x2a0 mm/swapfile.c:3647 folio_throttle_swaprate include/linux/swap.h:663 [inline] wp_page_copy mm/memory.c:3100 [inline] do_wp_page+0xde5/0x33c0 mm/memory.c:3432 handle_pte_fault mm/memory.c:4964 [inline] __handle_mm_fault+0x1635/0x41c0 mm/memory.c:5089 handle_mm_fault+0x2af/0x9f0 mm/memory.c:5243 faultin_page mm/gup.c:925 [inline] __get_user_pages+0x60a/0x10e0 mm/gup.c:1147 __get_user_pages_locked mm/gup.c:1381 [inline] __gup_longterm_locked+0x720/0x2420 mm/gup.c:2079 pin_user_pages_remote+0x101/0x160 mm/gup.c:3124 process_vm_rw_single_vec mm/process_vm_access.c:105 [inline] process_vm_rw_core.constprop.0+0x43b/0x990 mm/process_vm_access.c:215 process_vm_rw+0x29c/0x300 mm/process_vm_access.c:283 __do_sys_process_vm_writev mm/process_vm_access.c:303 [inline] __se_sys_process_vm_writev mm/process_vm_access.c:298 [inline] __x64_sys_process_vm_writev+0xe3/0x1b0 mm/process_vm_access.c:298 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fefba28c389 RSP: 002b:00007fefbaf6d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000137 RAX: ffffffffffffffda RBX: 00007fefba3ac120 RCX: 00007fefba28c389 RDX: 0000000000000044 RSI: 0000000020c22000 RDI: 0000000000002c6f RBP: 00007fefba2d7493 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020c22fa0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fefba4cfb1f R14: 00007fefbaf6d300 R15: 0000000000022000 </TASK> rcu: rcu_preempt kthread starved for 9894 jiffies! g355485 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:28408 pid:16 ppid:2 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5343 [inline] __schedule+0xc9a/0x5880 kernel/sched/core.c:6669 schedule+0xde/0x1a0 kernel/sched/core.c:6745 schedule_timeout+0x14e/0x2b0 kernel/time/timer.c:2167 rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1609 rcu_gp_kthread+0x23a/0x360 kernel/rcu/tree.c:1808 kthread+0x344/0x440 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x40/0x50 drivers/acpi/processor_idle.c:112 cdc_wdm 3-1:1.0: nonzero urb status received: -71 cdc_wdm 3-1:1.0: wdm_int_callback - 0 bytes
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023/06/26 04:59 | upstream | 547cc9be86f4 | 09ffe269 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce | INFO: rcu detected stall in sys_process_vm_writev |