syzbot


INFO: rcu detected stall in corrupted (3)

Status: closed as invalid on 2019/03/30 00:13
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+65cecdd27b726c261799@syzkaller.appspotmail.com
First crash: 1914d, last: 1914d
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: no output from test machine (log)
Repro: C syz .config
  
Discussions (1)
Title Replies (including bot) Last reply
INFO: rcu detected stall in corrupted (3) 9 (10) 2019/04/01 06:42
Similar bugs (10)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: rcu detected stall in corrupted origin:upstream C 986 1h27m 466d 0/3 upstream: reported C repro on 2023/03/13 04:03
android-414 INFO: rcu detected stall in corrupted C 3 1825d 1898d 0/1 public: reported C repro on 2019/04/10 16:04
android-49 INFO: rcu detected stall in corrupted C 27 1710d 1895d 0/3 public: reported C repro on 2019/04/14 00:00
linux-4.14 INFO: rcu detected stall in corrupted (2) C error 4 1468d 1629d 0/1 upstream: reported C repro on 2020/01/04 08:54
upstream INFO: rcu detected stall in corrupted (4) kernel C done inconclusive 479 4d11h 1385d 0/27 upstream: reported C repro on 2020/09/04 18:49
upstream INFO: rcu detected stall in corrupted net syz 1 2222d 2222d 8/27 fixed on 2018/07/09 18:05
linux-4.14 INFO: rcu detected stall in corrupted C done 3 1742d 1764d 1/1 fixed on 2019/12/05 23:59
linux-4.19 INFO: rcu detected stall in corrupted C error 2 882d 1589d 0/1 upstream: reported C repro on 2020/02/13 05:06
upstream INFO: rcu detected stall in corrupted (2) kernel syz 1 2154d 2154d 0/27 closed as invalid on 2018/07/29 11:55
linux-5.15 INFO: rcu detected stall in corrupted origin:lts-only C error 4 97d 242d 0/3 upstream: reported C repro on 2023/10/23 02:41

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P8340
rcu: 	(detected by 1, t=10502 jiffies, g=5905, q=81)
syz-executor586 R  running task    27832  8340   8338 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 preempt_schedule_common+0x4f/0xe0 kernel/sched/core.c:3642
 preempt_schedule+0x4b/0x60 kernel/sched/core.c:3668
 ___preempt_schedule+0x16/0x18
 __sched_setscheduler+0x12fb/0x1e70 kernel/sched/core.c:4398
 sched_setattr kernel/sched/core.c:4440 [inline]
 __do_sys_sched_setattr kernel/sched/core.c:4616 [inline]
 __se_sys_sched_setattr kernel/sched/core.c:4595 [inline]
 __x64_sys_sched_setattr+0x184/0x2b0 kernel/sched/core.c:4595
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4403c9
Code: 76 77 78 5d 20 5b 2d 6c 3c 68 6f 73 74 6c 69 73 74 3e 5d 20 5b 2d 73 3c 64 6f 6d 61 69 6e 6c 69 73 74 3e 5d 0a 20 20 20 20 20 <20> 20 20 20 20 20 20 20 20 20 20 5b 2d 66 3c 63 6f 6e 66 66 69 6c
RSP: 002b:00007ffea1a49298 EFLAGS: 00000246 ORIG_RAX: 000000000000013a
RAX: ffffffffffffffda RBX: 00007ffea1a49340 RCX: 00000000004403c9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000002b80 R09: 0000000000400d10
R10: 000000000000f8f8 R11: 0000000000000246 R12: 0000000000401c90
R13: 0000000000401d20 R14: 0000000000000000 R15: 0000000000000000
syz-executor586 R  running task    27832  8340   8338 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2877 [inline]
 __schedule+0x817/0x1cc0 kernel/sched/core.c:3518
 preempt_schedule_common+0x4f/0xe0 kernel/sched/core.c:3642
 preempt_schedule+0x4b/0x60 kernel/sched/core.c:3668
 ___preempt_schedule+0x16/0x18
 __sched_setscheduler+0x12fb/0x1e70 kernel/sched/core.c:4398
 sched_setattr kernel/sched/core.c:4440 [inline]
 __do_sys_sched_setattr kernel/sched/core.c:4616 [inline]
 __se_sys_sched_setattr kernel/sched/core.c:4595 [inline]
 __x64_sys_sched_setattr+0x184/0x2b0 kernel/sched/core.c:4595
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4403c9
Code: 76 77 78 5d 20 5b 2d 6c 3c 68 6f 73 74 6c 69 73 74 3e 5d 20 5b 2d 73 3c 64 6f 6d 61 69 6e 6c 69 73 74 3e 5d 0a 20 20 20 20 20 <20> 20 20 20 20 20 20 20 20 20 20 5b 2d 66 3c 63 6f 6e 66 66 69 6c
RSP: 002b:00007ffea1a49298 EFLAGS: 00000246 ORIG_RAX: 000000000000013a
RAX: ffffffffffffffda RBX: 00007ffea1a49340 RCX: 00000000004403c9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000002b80 R09: 0000000000400d10
R10: 000000000000f8f8 R11: 0000000000000246 R12: 0000000000401c90
R13: 0000000000401d20 R14: 0000000000000000 R15: 0000000000000000

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/03/25 21:29 upstream 8c2ffd917477 2c86e0a5 .config console log report syz C ci-upstream-kasan-gce-selinux-root
* Struck through repros no longer work on HEAD.