BUG: scheduling while atomic in rcu_boost

Date	Name	Commit	Repro	Result
2024/02/17	lts (merge base)	ba6f5fb46511	C	[report] BUG: scheduling while atomic in rcu_boost_kthread
2024/02/17	upstream (ToT)	c1ca10ceffbb	C	Didn't crash

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-5-15	BUG: scheduling while atomic in rcu_boost_kthread origin:lts missing-backport	syz			3	25d	71d	0/2	premoderation: reported syz repro on 2024/02/25 15:35

android-5-15

syz

25d

71d

0/2

Created	Duration	User	Patch	Repo	Result
2024/03/11 12:59	12m	retest repro		android14-6.1	report log

Created

Duration

User

Patch

Repo

Result

2024/03/11 12:59

12m

retest repro

report log

Created	Duration	User	Patch	Repo	Result
2024/04/13 07:53	2h10m	bisect fix		android14-6.1	job log (0) log

Created

Duration

User

Patch

Repo

Result

2024/04/13 07:53

2h10m

bisect fix

job log (0) log

BUG: scheduling while atomic: rcub/0/15/0x00000002 Modules linked in: Preemption disabled at: [<ffffffff84fe3947>] rt_mutex_slowlock_block+0xf7/0x5a0 kernel/locking/rtmutex.c:1574 CPU: 0 PID: 15 Comm: rcub/0 Not tainted 6.1.68-syzkaller-00023-g92432f07d663 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106 dump_stack+0x15/0x1b lib/dump_stack.c:113 __schedule_bug+0x195/0x260 kernel/sched/core.c:5960 schedule_debug kernel/sched/core.c:5987 [inline] __schedule+0xce9/0x1540 kernel/sched/core.c:6622 schedule+0xc3/0x180 kernel/sched/core.c:6805 rcu_boost_kthread+0x11f/0x6e0 kernel/rcu/tree_plugin.h:1120 kthread+0x26d/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK>

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/02/17 15:39	android14-6.1	92432f07d663	578f7538	.config	strace log	report	syz	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-android-6-1	BUG: scheduling while atomic in rcu_boost_kthread
2024/02/26 12:52	android14-6.1	c622e98ddc8e	8d446f15	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-android-6-1-perf	BUG: scheduling while atomic in rcu_boost_kthread
2024/01/28 18:20	android14-6.1	2730733d54b6	cc4a4020	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-android-6-1	BUG: scheduling while atomic in rcu_boost_kthread

Crashes (3):