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INFO: rcu detected stall in sys_recvmmsg (3)

Status: upstream: reported on 2023/12/19 09:31
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+b079dc0aa6e992859e7c@syzkaller.appspotmail.com
First crash: 741d, last: 1d20h
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [batman?] INFO: rcu detected stall in sys_recvmmsg (3) 0 (1) 2023/12/19 09:31
▶ ▼ Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 INFO: rcu detected stall in sys_recvmmsg (3) 1 52d 52d 0/3 upstream: reported on 2024/11/26 05:10
linux-4.19 INFO: rcu detected stall in sys_recvmmsg C error 1 756d 756d 0/1 upstream: reported C repro on 2022/12/23 04:58
linux-5.15 INFO: rcu detected stall in sys_recvmmsg origin:upstream missing-backport C done 36 4d09h 653d 0/3 upstream: reported C repro on 2023/04/06 01:32
linux-6.1 INFO: rcu detected stall in sys_recvmmsg (2) 5 156d 288d 0/3 auto-obsoleted due to no activity on 2024/11/22 11:58
upstream INFO: rcu detected stall in sys_recvmmsg mptcp C done 52 1082d 1214d 20/28 fixed on 2022/03/08 16:11
linux-6.1 INFO: rcu detected stall in sys_recvmmsg 5 533d 665d 0/3 auto-obsoleted due to no activity on 2023/11/11 06:06
upstream INFO: rcu detected stall in sys_recvmmsg (2) net 4 843d 873d 0/28 auto-obsoleted due to no activity on 2023/01/03 09:53
android-5-15 BUG: soft lockup in sys_recvmmsg 5 176d 269d 0/2 auto-obsoleted due to no activity on 2024/10/23 09:30

Sample crash report:
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=263c/1/0x4000000000000000 softirq=68781/68781 fqs=0
rcu: 	(detected by 0, t=10502 jiffies, g=74961, q=341 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 18481 Comm: syz.3.3267 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:lock_acquire.part.0+0x4b/0x380 kernel/locking/lockdep.c:5814
Code: 81 ec a8 00 00 00 48 c7 44 24 08 b3 8a b5 41 48 8d 5c 24 08 48 c7 44 24 10 a9 a1 94 8d 48 c1 eb 03 48 c7 44 24 18 50 da 76 81 <48> 8d 04 13 c7 00 f1 f1 f1 f1 c7 40 04 f1 f1 00 00 c7 40 08 00 00
RSP: 0000:ffffc90000a18c98 EFLAGS: 00000802
RAX: 0000000000000001 RBX: 1ffff92000143194 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8e1bb900
RBP: ffff88803565c810 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff905f4997 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8e1bb900 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fdc036dc6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020c6f030 CR3: 0000000038b68000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 advance_sched+0x67f/0xc60 net/sched/sch_taprio.c:985
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:copy_from_user include/linux/uaccess.h:212 [inline]
RIP: 0010:copy_msghdr_from_user+0x91/0x160 net/socket.c:2513
Code: 00 48 89 84 24 98 00 00 00 31 c0 e8 99 e0 99 f8 31 c0 b9 07 00 00 00 48 89 ee 4c 8d 7c 24 20 ba 38 00 00 00 4c 89 ff f3 48 ab <4c> 89 ff e8 f7 17 a0 fb 31 ff 48 89 c5 48 89 c6 e8 9a db 99 f8 48
RSP: 0000:ffffc9000f577a88 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92001eaef51 RCX: 0000000000000000
RDX: 0000000000000038 RSI: 0000000020c6f6c0 RDI: ffffc9000f577ae0
RBP: 0000000020c6f6c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: ffffc9000f577d98
R13: ffffc9000f577bb0 R14: ffffc9000f577b90 R15: ffffc9000f577aa8
 recvmsg_copy_msghdr net/socket.c:2769 [inline]
 ___sys_recvmsg+0xdc/0x1a0 net/socket.c:2841
 do_recvmmsg+0x2f8/0x740 net/socket.c:2940
 __sys_recvmmsg net/socket.c:3014 [inline]
 __do_sys_recvmmsg net/socket.c:3037 [inline]
 __se_sys_recvmmsg net/socket.c:3030 [inline]
 __x64_sys_recvmmsg+0x239/0x290 net/socket.c:3030
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdc02985d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdc036dc038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fdc02b76080 RCX: 00007fdc02985d29
RDX: 000000000400034f RSI: 0000000020000480 RDI: 0000000000000004
RBP: 00007fdc02a01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fdc02b76080 R15: 00007ffcf91a1f38
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g74961 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=73574
rcu: rcu_preempt kthread starved for 10502 jiffies! g74961 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
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:I stack:28320 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
IPVS: lblc: UDP 224.0.0.2:0 - no destination available

Crashes (122):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/16 05:52 upstream 619f0b6fad52 968edaf4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2025/01/11 18:55 upstream 77a903cd8e5a 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2025/01/06 18:13 upstream 5428dc1906dd f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2025/01/06 09:51 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2025/01/06 07:37 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2025/01/05 23:11 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2025/01/05 20:41 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2025/01/05 05:02 upstream ab75170520d4 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2025/01/04 17:43 upstream 63676eefb7a0 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_recvmmsg
2025/01/03 06:24 upstream 0bc21e701a6f d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2025/01/01 22:23 upstream 56e6a3499e14 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2025/01/01 14:24 upstream ccb98ccef0e5 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/30 06:31 upstream 4099a71718b0 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/29 09:15 upstream 059dd502b263 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/26 14:40 upstream 9b2ffa6148b1 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/26 05:32 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/25 12:31 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/24 23:32 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/24 03:43 upstream f07044dd0df0 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/22 19:44 upstream bcde95ce32b6 b4fbdbd4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2024/12/18 14:21 upstream aef25be35d23 a0626d3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2024/12/17 04:26 upstream f44d154d6e3d f93b2b55 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/15 17:11 upstream 2d8308bf5b67 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_recvmmsg
2024/12/14 07:04 upstream f932fb9b4074 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/14 04:45 upstream f932fb9b4074 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/13 12:41 upstream 150b567e0d57 3547e30f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/12 01:11 upstream 231825b2e1ff ff949d25 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/11 06:30 upstream f92f4749861b cfc402b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/11 03:35 upstream 7cb1b4663150 cfc402b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/09 21:47 upstream fac04efc5c79 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2024/12/09 18:22 upstream fac04efc5c79 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2024/12/08 22:45 upstream 62b5a46999c7 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/08 15:23 upstream 7503345ac5f5 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/07 12:50 upstream b5f217084ab3 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/05 14:13 upstream feffde684ac2 6e50d07b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/03 17:54 upstream cdd30ebb1b9f 578925bc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in sys_recvmmsg
2024/12/03 02:18 upstream e70140ba0d2b bb326ffb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/02 03:44 upstream 40384c840ea1 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/12/02 00:42 upstream bcc8eda6d349 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/11/30 22:37 upstream 2ba9f676d0a2 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2024/11/30 06:48 upstream 509f806f7f70 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/11/29 04:08 upstream 7af08b57bcb9 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2024/11/29 00:27 upstream 7af08b57bcb9 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2024/11/27 20:43 upstream aaf20f870da0 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2024/11/25 10:18 upstream 9f16d5e6f220 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: rcu detected stall in sys_recvmmsg
2024/11/19 01:00 upstream adc218676eef 571351cb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce INFO: rcu detected stall in sys_recvmmsg
2023/12/19 05:01 upstream 2cf4f94d8e86 3ad490ea .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2023/10/07 11:05 upstream 82714078aee4 5e837c76 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in sys_recvmmsg
2023/07/08 16:10 upstream 8689f4f2ea56 668cb1fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root INFO: rcu detected stall in sys_recvmmsg
2024/09/15 05:12 net 36f6b72cb855 08d8a733 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in sys_recvmmsg
2024/11/28 08:07 net-next fcc79e1714e8 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce INFO: rcu detected stall in sys_recvmmsg
2024/12/18 10:03 linux-next 7fa366f1b6e3 a0626d3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: rcu detected stall in sys_recvmmsg
* Struck through repros no longer work on HEAD.