INFO: rcu detected stall in __se_sys

Title	Replies (including bot)	Last reply
INFO: rcu detected stall in __se_sys_mount	1 (4)	2020/12/08 06:33

Title

Replies (including bot)

Last reply

INFO: rcu detected stall in __se_sys_mount

1 (4)

2020/12/08 06:33


Created	Duration	User	Repo	Result
2020/12/07 16:14	3h50m	bisect fix	upstream	job log (1)
2020/11/07 14:57	28m	bisect fix	upstream	job log (0) log
2020/09/16 10:24	30m	bisect fix	upstream	job log (0) log
2020/08/15 20:23	29m	bisect fix	upstream	job log (0) log

rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7452 at kernel/sched/core.c:3013 rq_unlock kernel/sched/sched.h:1325 [inline] WARNING: CPU: 1 PID: 7452 at kernel/sched/core.c:3013 try_invoke_on_locked_down_task+0x12d/0x270 kernel/sched/core.c:3019 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7452 Comm: syz-executor259 Not tainted 5.9.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: <IRQ> __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d6/0x29e lib/dump_stack.c:118 panic+0x2c0/0x800 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:try_invoke_on_locked_down_task+0x12d/0x270 kernel/sched/sched.h:1325 Code: f8 48 c1 e8 03 42 8a 04 38 84 c0 0f 85 10 01 00 00 8b 74 24 18 48 89 ef e8 90 47 09 00 4c 89 ef e8 88 9b fd 06 e9 a4 00 00 00 <0f> 0b e9 2b ff ff ff 48 c7 c1 74 fb af 89 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc90000da8c50 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffff896ff600 RCX: 0013916f856b3a00 RDX: ffffc90000da8d00 RSI: ffffffff8162d990 RDI: ffff88809027e480 RBP: ffffffff8162d990 R08: dffffc0000000000 R09: fffffbfff12df8f9 R10: fffffbfff12df8f9 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff896ff600 R14: ffff88809027e480 R15: dffffc0000000000 rcu_print_task_stall kernel/rcu/tree_stall.h:267 [inline] print_other_cpu_stall kernel/rcu/tree_stall.h:475 [inline] check_cpu_stall kernel/rcu/tree_stall.h:634 [inline] rcu_pending kernel/rcu/tree.c:3639 [inline] rcu_sched_clock_irq+0x12bc/0x1eb0 kernel/rcu/tree.c:2521 update_process_times+0x130/0x1b0 kernel/time/timer.c:1710 tick_sched_handle kernel/time/tick-sched.c:176 [inline] tick_sched_timer+0x25e/0x410 kernel/time/tick-sched.c:1328 __run_hrtimer kernel/time/hrtimer.c:1524 [inline] __hrtimer_run_queues+0x42d/0x930 kernel/time/hrtimer.c:1588 hrtimer_interrupt+0x373/0xd60 kernel/time/hrtimer.c:1650 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] __sysvec_apic_timer_interrupt+0xf0/0x260 arch/x86/kernel/apic/apic.c:1097 asm_call_irq_on_stack+0xf/0x20 </IRQ> __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline] run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline] sysvec_apic_timer_interrupt+0x94/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:strncasecmp+0x0/0x1c0 lib/string.c:44 Code: 2b 09 f2 48 01 c8 89 ce c1 e6 11 48 c1 e9 2f 09 f1 89 c6 31 ce 48 c1 e8 20 31 f0 31 d0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc <55> 41 57 41 56 41 55 41 54 53 48 83 ec 10 48 85 d2 0f 84 80 01 00 RSP: 0018:ffffc90006357b98 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000007 RCX: dffffc0000000000 RDX: 0000000000000007 RSI: ffff88809752ce81 RDI: ffff88809eedc100 RBP: 0000000000000007 R08: ffffffff82dd8855 R09: ffffed1014220716 R10: ffffed1014220716 R11: 0000000000000000 R12: 00000000000009a0 R13: ffff88809eedc100 R14: 0000000000000007 R15: ffff8880a1103800 afs_lookup_cell_rcu+0x2bc/0x6f0 fs/afs/cell.c:88 afs_lookup_cell+0x246/0x14d0 fs/afs/cell.c:249 afs_parse_source fs/afs/super.c:290 [inline] afs_parse_param+0x526/0x790 fs/afs/super.c:326 vfs_parse_fs_param+0x1e5/0x460 fs/fs_context.c:117 vfs_parse_fs_string fs/fs_context.c:161 [inline] generic_parse_monolithic+0x230/0x350 fs/fs_context.c:201 do_new_mount fs/namespace.c:2871 [inline] path_mount+0x176c/0x29e0 fs/namespace.c:3192 do_mount fs/namespace.c:3205 [inline] __do_sys_mount fs/namespace.c:3413 [inline] __se_sys_mount+0x126/0x180 fs/namespace.c:3390 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x447a3a Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 9d a3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 7a a3 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007ffc915e4f78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffc915e4fc0 RCX: 0000000000447a3a RDX: 0000000020000000 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 0000000000000000 R08: 00007ffc915e4fc0 R09: 0000000000000004 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402240 R13: 00000000004022d0 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2020/10/08 12:14	upstream	c85fb28b6f99	1880b4a9	.config	console log	report	syz	C			ci-upstream-kasan-gce-smack-root
2020/07/05 21:44	upstream	7cc2a8ea1048	51095195	.config	console log	report	syz				ci-upstream-kasan-gce-smack-root

Crashes (2):

Assets (help?)