audit: audit_backlog=65 > audit_backlog_limit=64 audit: audit_lost=421887 audit_rate_limit=0 audit_backlog_limit=64 audit: backlog limit exceeded audit: audit_backlog=65 > audit_backlog_limit=64 rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4675/1:b..l rcu: (detected by 1, t=10503 jiffies, g=97409, q=398 ncpus=2) task:udevd state:R running task stack:21632 pid:4675 tgid:4675 ppid:1 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_release+0x658/0xa30 kernel/locking/lockdep.c:5784 Code: 3c 3b 00 74 08 4c 89 f7 e8 f5 b6 87 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25 RSP: 0018:ffffc9000405f3a0 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff9200080be86 RCX: ffffc9000405f403 RDX: 0000000000000000 RSI: ffffffff8beae6e0 RDI: ffffffff8c3fbb00 RBP: ffffc9000405f4d0 R08: ffffffff8ff74a2f R09: 1ffffffff1fee945 R10: dffffc0000000000 R11: fffffbfff1fee946 R12: 1ffff9200080be80 R13: 0000000000000246 R14: ffffc9000405f430 R15: dffffc0000000000 rcu_lock_release include/linux/rcupdate.h:336 [inline] rcu_read_unlock include/linux/rcupdate.h:869 [inline] dump_common_audit_data security/lsm_audit.c:294 [inline] common_lsm_audit+0xee3/0x1b30 security/lsm_audit.c:458 smack_log+0x421/0x540 security/smack/smack_access.c:383 smk_tskacc+0x300/0x370 security/smack/smack_access.c:253 smack_inode_permission+0x2dc/0x380 security/smack/smack_lsm.c:1234 security_inode_permission+0xa5/0x100 security/security.c:2216 may_lookup fs/namei.c:1746 [inline] link_path_walk+0x204/0xea0 fs/namei.c:2352 path_lookupat+0xa9/0x450 fs/namei.c:2565 filename_lookup+0x256/0x610 fs/namei.c:2595 vfs_statx+0x103/0x490 fs/stat.c:312 vfs_fstatat+0x145/0x190 fs/stat.c:341 __do_sys_newfstatat fs/stat.c:505 [inline] __se_sys_newfstatat fs/stat.c:499 [inline] __x64_sys_newfstatat+0x11d/0x1a0 fs/stat.c:499 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: 0033:0x7f04a6b8f5f4 RSP: 002b:00007ffe087abc58 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000563b061626e0 RCX: 00007f04a6b8f5f4 RDX: 00007ffe087abc68 RSI: 0000563b06152897 RDI: 00000000ffffff9c RBP: 0000563b283c2fb8 R08: 0005f9c4183b50c0 R09: 7fffffffffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 0005f9c4183b50c0 R15: 0000563b06156dca rcu: rcu_preempt kthread starved for 10509 jiffies! g97409 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:24560 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5188 [inline] __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529 __schedule_loop kernel/sched/core.c:6606 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6621 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236 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 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:106 [inline] NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111