syzbot


INFO: rcu detected stall in inet_sendmsg (3)

Status: auto-obsoleted due to no activity on 2022/10/08 22:05
Subsystems: perf
[Documentation on labels]
First crash: 1365d, last: 723d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
Similar bugs (9)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in inet_sendmsg sctp 35 1634d 1937d 0/26 auto-closed as invalid on 2020/01/26 18:56
linux-4.14 INFO: rcu detected stall in inet_sendmsg (2) 1 1435d 1435d 0/1 auto-closed as invalid on 2020/09/11 11:53
linux-4.14 INFO: rcu detected stall in inet_sendmsg 3 1684d 1790d 0/1 auto-closed as invalid on 2020/01/06 14:34
linux-4.19 INFO: rcu detected stall in inet_sendmsg 3 1684d 1686d 0/1 auto-closed as invalid on 2020/01/06 19:02
upstream INFO: rcu detected stall in inet_sendmsg (4) net 1 553d 553d 0/26 auto-obsoleted due to no activity on 2023/01/16 15:35
linux-4.19 INFO: rcu detected stall in inet_sendmsg (2) 4 1285d 1452d 0/1 auto-closed as invalid on 2021/02/08 07:43
upstream INFO: rcu detected stall in inet_sendmsg (2) perf 13 1372d 1456d 15/26 fixed on 2020/07/17 17:58
linux-4.14 BUG: soft lockup in inet_sendmsg 1 744d 744d 0/1 auto-closed as invalid on 2022/08/03 16:05
linux-4.19 BUG: soft lockup in inet_sendmsg 74 438d 775d 0/1 upstream: reported on 2022/03/05 20:29
Last patch testing requests (1)
Created Duration User Patch Repo Result
2022/10/08 12:30 15m retest repro upstream OK log

Sample crash report:
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=a2a/1/0x4000000000000000 softirq=13602/13602 fqs=5234 
	(t=10500 jiffies g=17881 q=1633)
NMI backtrace for cpu 1
CPU: 1 PID: 8844 Comm: syz-executor.2 Not tainted 5.8.0-rc6-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+0x18f/0x20d lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x70/0xb1 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1b3/0x223 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x194/0x1cf kernel/rcu/tree_stall.h:320
 print_cpu_stall kernel/rcu/tree_stall.h:553 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 rcu_pending kernel/rcu/tree.c:3489 [inline]
 rcu_sched_clock_irq.cold+0x5b3/0xccc kernel/rcu/tree.c:2504
 update_process_times+0x25/0x60 kernel/time/timer.c:1737
 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
 tick_sched_timer+0x108/0x290 kernel/time/tick-sched.c:1320
 __run_hrtimer kernel/time/hrtimer.c:1520 [inline]
 __hrtimer_run_queues+0x1d5/0xfc0 kernel/time/hrtimer.c:1584
 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1646
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
 __sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline]
 sysvec_apic_timer_interrupt+0xe0/0x120 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:585
RIP: 0010:__output_copy kernel/events/internal.h:178 [inline]
RIP: 0010:perf_output_read_group kernel/events/core.c:6699 [inline]
RIP: 0010:perf_output_read+0xcff/0x1260 kernel/events/core.c:6732
Code: e6 ff 4c 89 a4 24 40 01 00 00 4c 8b 74 24 30 48 8b 6c 24 48 4c 8b 64 24 28 49 c1 ee 03 4b 8d 04 2e 48 89 04 24 e8 d1 7d e6 ff <48> 8b 44 24 08 80 38 00 0f 85 50 02 00 00 48 8b 04 24 49 89 ef 48
RSP: 0018:ffffc900016570d8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffc90001657420 RCX: ffffffff818d3e50
RDX: ffff8880792de440 RSI: ffffffff818d3eff RDI: ffff8880971cd2e0
RBP: 0000000000000010 R08: 0000000000000000 R09: ffff8880971cd0bf
R10: 0000000000000000 R11: 0000000000000001 R12: ffffc90001657210
R13: dffffc0000000000 R14: 1ffff920002cae89 R15: ffff8880971cd000
 perf_output_sample+0x102c/0x1c60 kernel/events/core.c:6779
 __perf_event_output kernel/events/core.c:7160 [inline]
 perf_event_output_forward+0x12f/0x270 kernel/events/core.c:7174
 __perf_event_overflow+0x13c/0x370 kernel/events/core.c:8746
 perf_swevent_overflow kernel/events/core.c:8822 [inline]
 perf_swevent_event+0x347/0x550 kernel/events/core.c:8850
 do_perf_sw_event kernel/events/core.c:8963 [inline]
 ___perf_sw_event+0x304/0x550 kernel/events/core.c:8994
 __perf_sw_event+0x58/0x120 kernel/events/core.c:9006
 perf_sw_event include/linux/perf_event.h:1158 [inline]
 do_user_addr_fault+0x82a/0xd00 arch/x86/mm/fault.c:1332
 handle_page_fault arch/x86/mm/fault.c:1365 [inline]
 exc_page_fault+0xab/0x170 arch/x86/mm/fault.c:1418
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:542
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 arch/x86/lib/copy_user_64.S:205
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4
RSP: 0018:ffffc900016579b8 EFLAGS: 00010206
RAX: 0000000000000001 RBX: 0000000000008000 RCX: 0000000000004fcb
RDX: 0000000000008000 RSI: 0000000020fa8000 RDI: ffff8880959ab035
RBP: ffff8880959a8000 R08: 0000000000000001 R09: ffff8880959affff
R10: ffffed1012b35fff R11: 0000000000000000 R12: 0000000020fa4fcb
R13: 0000000020facfcb R14: 00007ffffffff000 R15: 0000000000000000
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_from_user arch/x86/include/asm/uaccess_64.h:68 [inline]
 copyin+0x107/0x140 lib/iov_iter.c:152
 _copy_from_iter_full+0x1ff/0x890 lib/iov_iter.c:790
 copy_from_iter_full include/linux/uio.h:156 [inline]
 skb_do_copy_data_nocache+0x145/0x2c0 include/net/sock.h:2038
 skb_copy_to_page_nocache include/net/sock.h:2064 [inline]
 tcp_sendmsg_locked+0x112c/0x2d00 net/ipv4/tcp.c:1343
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1441
 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:814
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 __sys_sendto+0x21c/0x320 net/socket.c:1995
 __do_sys_sendto net/socket.c:2007 [inline]
 __se_sys_sendto net/socket.c:2003 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2003
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c369
Code: 8d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ff4109a7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 000000000002ba00 RCX: 000000000045c369
RDX: ffffffffffffffef RSI: 0000000020d7cfcb RDI: 0000000000000007
RBP: 000000000078bf58 R08: 0000000000000000 R09: 0000000000000053
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 00007ffecdba5b3f R14: 00007ff4109a89c0 R15: 000000000078bf0c

Crashes (68):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/07/26 16:53 upstream 04300d66f0a0 51265195 .config console log report syz ci-upstream-kasan-gce-root
2022/02/04 01:16 upstream 1f2cfdd349b7 30646bfe .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2022/02/01 11:30 upstream 26291c54e111 c1c1631d .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2022/02/01 01:42 upstream 26291c54e111 6b7c57fe .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2022/01/30 12:43 upstream 8dd71685dcb7 495e00c5 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2022/01/29 22:33 upstream f8c7e4ede46f 495e00c5 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2022/01/22 18:20 upstream 0809edbae347 214351e1 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2022/01/12 23:14 upstream f079ab01b560 44d1319a .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2022/01/11 23:09 upstream 6f38be8f2ccd 44d1319a .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/12/28 02:02 upstream a8ad9a2434dc 6b3c5e64 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/12/27 19:14 upstream a8ad9a2434dc 5140bd58 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/12/17 18:16 upstream 6441998e2e37 44068e19 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/12/17 16:55 upstream 6441998e2e37 44068e19 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/12/12 13:59 upstream a763d5a5abd6 49ca1f59 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/11/29 01:08 upstream d06c942efea4 63eeac02 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/11/17 13:28 upstream 8ab774587903 cafff8b6 .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/11/13 04:21 upstream 7246f4dcaccc 83f5c9b5 .config console log report info ci-upstream-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/10/28 22:11 upstream 411a44c24a56 be531bb4 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/10/26 14:00 upstream 3906fe9bb7f1 d50eb50a .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/09/02 12:19 upstream 4ac6d90867a4 15cea0a3 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/08/27 09:23 upstream 77dd11439b86 b318694d .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/07/02 18:32 upstream 3dbdb38e2869 55aa55c2 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in inet_sendmsg
2021/04/19 03:52 upstream bf05bf16c76b 7e2b734b .config console log report info ci-upstream-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/05/24 11:20 upstream c4681547bcce 3c7fef33 .config console log report info ci-upstream-kasan-gce-386 INFO: rcu detected stall in inet_sendmsg
2021/05/23 09:05 upstream 4d7620341eda 3c7fef33 .config console log report info ci-upstream-kasan-gce-386 INFO: rcu detected stall in inet_sendmsg
2021/11/13 07:57 net-old 66f4beaa6c1d 83f5c9b5 .config console log report info ci-upstream-net-this-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/11/07 23:21 net-old 08fcdfa6e3ae 4c1be0be .config console log report info ci-upstream-net-this-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/07/30 12:13 bpf b4f0c24a5eaf c585c7b0 .config console log report info ci-upstream-bpf-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/07/13 08:01 bpf f35e0cc25280 f415556d .config console log report info ci-upstream-bpf-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/06/15 07:27 bpf 973377ffe814 1ba81399 .config console log report info ci-upstream-bpf-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/02/26 23:51 bpf 557c223b643a 4c37c133 .config console log report info ci-upstream-bpf-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/11/17 15:13 net-next-old b9241f54138c cafff8b6 .config console log report info ci-upstream-net-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/11/10 05:16 net-next-old cc0356d6a02e 55fa030c .config console log report info ci-upstream-net-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/11/05 00:48 net-next-old cc0356d6a02e 4c1be0be .config console log report info ci-upstream-net-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/10/02 23:41 net-next-old b8aa16541d73 db0f5787 .config console log report info ci-upstream-net-kasan-gce INFO: rcu detected stall in inet_sendmsg
2021/09/08 23:55 bpf-next 006a5099fc18 e2776ee4 .config console log report info ci-upstream-bpf-next-kasan-gce INFO: rcu detected stall in inet_sendmsg
2022/04/26 02:45 linux-next e7d6987e09a3 152baedd .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2022/04/25 23:08 linux-next e7d6987e09a3 152baedd .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2022/01/27 20:24 linux-next 0eb96e2c58c0 64a8e201 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2022/01/19 22:16 linux-next 6f59bc242877 5da9499f .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2022/01/17 09:18 linux-next 68e0667e38d9 723cfaf0 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2022/01/13 00:39 linux-next 32ce2abb03cf 44d1319a .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/12/21 14:30 linux-next 07f8c60fe60f a938f0b8 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/12/07 09:18 linux-next 04fe99a8d936 0230ba3e .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/12/06 11:12 linux-next 5d02ef4b57f6 579a8754 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/12/02 14:11 linux-next f81e94e91878 61f86278 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/12/01 07:08 linux-next f81e94e91878 80270552 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/11/23 06:33 linux-next aacdecce8147 545ab074 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/11/18 06:13 linux-next 5191249f8803 cafff8b6 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/11/15 13:45 linux-next 09bd48c4acfa 83f5c9b5 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2021/06/05 04:15 linux-next a1f92694393a 500c2339 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in inet_sendmsg
2020/08/12 15:19 upstream c636eef2ee36 bb3e5fe6 .config console log report ci-upstream-kasan-gce-root
2020/08/09 06:30 upstream 06a81c1c7db9 f721e4a0 .config console log report ci-upstream-kasan-gce-selinux-root
2020/08/05 08:38 upstream 442489c21923 80a06902 .config console log report ci-upstream-kasan-gce-root
2020/07/28 23:04 upstream 6ba1b005ffc3 cb93dc6a .config console log report ci-upstream-kasan-gce-root
2020/07/26 12:27 upstream 04300d66f0a0 51265195 .config console log report ci-upstream-kasan-gce-root
2020/07/26 10:40 upstream 04300d66f0a0 1f7cc1ca .config console log report ci-upstream-kasan-gce-root
2020/07/26 07:28 upstream 23ee3e4e5bd2 1f7cc1ca .config console log report ci-upstream-kasan-gce-selinux-root
2020/07/23 18:03 upstream d15be546031c 70c104a1 .config console log report ci-upstream-kasan-gce-root
2020/07/23 17:55 upstream d15be546031c 70c104a1 .config console log report ci-upstream-kasan-gce-root
2020/11/09 10:21 net-old 4e0396c59559 64069d48 .config console log report info ci-upstream-net-this-kasan-gce
2020/09/08 21:43 net-old 19162fd4063a abf9ba4f .config console log report ci-upstream-net-this-kasan-gce
2020/09/03 08:48 net-old 1996cf46e467 abf9ba4f .config console log report ci-upstream-net-this-kasan-gce
2020/10/15 18:56 net-next-old d25e2e9388ed 63869021 .config console log report info ci-upstream-net-kasan-gce
2020/08/25 20:46 net-next-old fdf1923bf9f7 344da168 .config console log report ci-upstream-net-kasan-gce
2020/08/10 00:12 net-next-old bfdd5aaa54b0 70301872 .config console log report ci-upstream-net-kasan-gce
2020/09/16 00:06 linux-next 6b02addb1d17 6989d6f6 .config console log report info ci-upstream-linux-next-kasan-gce-root
2020/08/30 18:57 linux-next b36c969764ab d5a3ae1f .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.