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BUG: soft lockup in tx

Status: upstream: reported C repro on 2022/09/18 05:29
Subsystems: serial
[Documentation on labels]
Reported-by: syzbot+5e87db90e68fbc4707c6@syzkaller.appspotmail.com
First crash: 987d, last: 14h02m
▶ ▼ Discussions (14)
Title Replies (including bot) Last reply
[syzbot] Monthly serial report (Apr 2025) 0 (1) 2025/04/22 10:11
[syzbot] Monthly serial report (Mar 2025) 0 (1) 2025/03/21 00:44
[syzbot] Monthly serial report (Jan 2025) 0 (1) 2025/01/17 10:36
[syzbot] Monthly serial report (Dec 2024) 0 (1) 2024/12/17 09:47
[syzbot] Monthly serial report (Nov 2024) 0 (1) 2024/11/18 10:38
[syzbot] Monthly serial report (Jul 2024) 0 (1) 2024/07/12 10:05
[syzbot] Monthly serial report (May 2024) 0 (1) 2024/05/06 13:18
[syzbot] Monthly serial report (Apr 2024) 0 (1) 2024/04/05 12:46
[syzbot] Monthly serial report (Feb 2024) 1 (2) 2024/02/05 08:09
[syzbot] Monthly serial report (Nov 2023) 0 (1) 2023/11/29 13:03
[syzbot] Monthly serial report (Oct 2023) 0 (1) 2023/10/30 09:14
[syzbot] Monthly serial report (Jul 2023) 1 (2) 2023/08/03 08:33
Re: [syzbot] BUG: soft lockup in tx 1 (1) 2022/09/19 04:50
[syzbot] BUG: soft lockup in tx 0 (1) 2022/09/18 05:29
▶ ▼ Similar bugs (11)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 BUG: soft lockup in tx (2) 1 464d 464d 0/3 auto-obsoleted due to no activity on 2024/05/12 18:08
linux-4.14 BUG: soft lockup in tx C error 2 1131d 1310d 0/1 upstream: reported C repro on 2021/10/09 08:02
linux-4.19 BUG: soft lockup in tx C done 1 1346d 1376d 1/1 fixed on 2021/10/04 07:44
linux-5.15 BUG: soft lockup in tx (2) origin:upstream C 13 7d08h 287d 0/3 upstream: reported C repro on 2024/07/29 04:22
linux-6.1 BUG: soft lockup in tx (4) 1 4d00h 4d00h 0/3 upstream: reported on 2025/05/08 06:14
linux-6.1 BUG: soft lockup in tx (3) 4 105d 324d 0/3 auto-obsoleted due to no activity on 2025/05/07 05:11
linux-6.1 BUG: soft lockup in tx 3 625d 748d 0/3 auto-obsoleted due to no activity on 2023/12/03 12:31
linux-5.15 BUG: soft lockup in tx 21 511d 762d 0/3 auto-obsoleted due to no activity on 2024/03/27 03:04
linux-5.15 INFO: rcu detected stall in tx 1 394d 394d 0/3 auto-obsoleted due to no activity on 2024/07/21 14:08
upstream INFO: rcu detected stall in tx net C error unreliable 3 1345d 1483d 20/28 fixed on 2021/11/10 00:50
upstream INFO: rcu detected stall in tx (2) serial 79 1111d 1230d 0/28 auto-closed as invalid on 2022/08/24 07:21
▶ ▼ Last patch testing requests (12)
Created Duration User Patch Repo Result
2025/05/06 08:10 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/05/06 08:10 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/05/06 08:10 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/01/22 04:24 19m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/12/23 07:59 1h49m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/10/07 03:37 24m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/07/18 20:26 1h03m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/04/25 09:37 22m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2024/02/13 16:46 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2023/11/26 14:30 23m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2022/09/18 11:03 18m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git a6b443748715 OK log
2022/09/18 09:44 18m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git a6b443748715 report log

Sample crash report:
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [aoe_tx0:1378]
Modules linked in:
irq event stamp: 34814405
hardirqs last  enabled at (34814404): [<ffff80000bfd85d4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (34814404): [<ffff80000bfd85d4>] _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194
hardirqs last disabled at (34814405): [<ffff80000bfc5d58>] __el1_irq arch/arm64/kernel/entry-common.c:455 [inline]
hardirqs last disabled at (34814405): [<ffff80000bfc5d58>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:473
softirqs last  enabled at (8188): [<ffff80000b20ab54>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (8192): [<ffff80000b20ab20>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 0 PID: 1378 Comm: aoe_tx0 Not tainted 6.0.0-rc4-syzkaller-17255-ga6b443748715 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
pc : _raw_spin_unlock_irqrestore+0x58/0x8c kernel/locking/spinlock.c:194
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
lr : _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194
sp : ffff800014a53b80
x29: ffff800014a53b80 x28: ffff0000c4ea0c30 x27: 0000000000000000
x26: ffff80000f0ed9b8 x25: 0000000000000002 x24: 0000000000000001
x23: ffff0000c8bf38b0 x22: 0000000000000020 x21: 0000000000000001
x20: ffff80000f0ed9b8 x19: 0000000000000000 x18: 00000000000000c0
x17: ffff80000dd3a698 x16: ffff80000db78658 x15: ffff0000c42b0000
x14: 0000000000000028 x13: 00000000ffffffff x12: ffff0000c42b0000
x11: ff808000095d7628 x10: 0000000000000000 x9 : 0000000000000080
x8 : 00000000000000c0 x7 : ffff8000098f58f0 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000002 x1 : ffff80000ce5df15 x0 : ffff8001f1d2f000
Call trace:
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 _raw_spin_unlock_irqrestore+0x58/0x8c kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:404 [inline]
 uart_write+0x204/0x458 drivers/tty/serial/serial_core.c:589
 handle_tx+0x10c/0x34c drivers/net/caif/caif_serial.c:236
 caif_xmit+0xa4/0xe0 drivers/net/caif/caif_serial.c:282
 __netdev_start_xmit include/linux/netdevice.h:4819 [inline]
 netdev_start_xmit include/linux/netdevice.h:4833 [inline]
 xmit_one net/core/dev.c:3590 [inline]
 dev_hard_start_xmit+0xd4/0x1ec net/core/dev.c:3606
 __dev_queue_xmit+0x78c/0xc88 net/core/dev.c:4256
 dev_queue_xmit include/linux/netdevice.h:3008 [inline]
 tx+0x74/0x118 drivers/block/aoe/aoenet.c:63
 kthread+0x90/0x154 kernel/kthread.c:357
 kthread+0x12c/0x158 kernel/kthread.c:376
 ret_from_fork+0x10/0x20

Crashes (92):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/09/18 05:28 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 dd9a85ff .config console log report syz C [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/02/27 05:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a1c24ab82279 6a8fcbc4 .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/01/08 00:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 f3558dbf .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/04/07 20:40 upstream 0af2f6be1b42 a2ada0e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root BUG: soft lockup in tx
2025/05/11 16:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c32f8dc5aaf9 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/05/09 16:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c32f8dc5aaf9 bb813bcc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/04/21 18:26 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c72692105976 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/04/18 11:00 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c72692105976 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/04/11 02:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2fe2b96c3818 1bc60a19 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/04/04 19:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d6b13dbd03b7 1c4febdb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/03/31 10:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 d3999433 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/03/23 00:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a2392f333575 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/03/21 16:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci cc8f508710d1 62330552 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/03/20 04:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci b5737d35364f 3b7445cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/03/14 07:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 059f6cbcfa70 e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/03/08 16:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 77c95b8c7a16 7e3bd60d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2025/02/27 03:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a1c24ab82279 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/12/09 06:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 9ac0fdc6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/11/27 18:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/11/08 10:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb17c12d043d 179b040e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/09/23 03:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 5f5673607153 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/08/21 18:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 048499f92ed7 db5852f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/05/04 03:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 78186bd77b47 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/05/02 01:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 6a71d2909427 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/04/10 20:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fec50db7033e 56086b24 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/04/04 14:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/02/17 21:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 905b00721763 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/01/29 13:55 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 0802e17d9aca 991a98f4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/01/20 19:20 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 0802e17d9aca 9bd8dcda .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/01/05 05:22 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 0802e17d9aca 28c42cff .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/12/26 00:00 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci aafe7ad77b91 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/12/14 11:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d5b235ec8eab 3222d10c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/11/27 13:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/11/12 14:20 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c 6d6dbf8a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/11/03 02:04 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c b5f07fd3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/10/16 12:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 249eb8f39efb 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/10/03 20:02 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2e530aeb342b 65faba36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/08/30 15:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe4469582053 84803932 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/07/26 14:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e40939bbfc68 6756545c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/06/23 14:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 42234a752679 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/06/23 05:01 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 42234a752679 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/06/22 08:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 42234a752679 09ffe269 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/06/10 22:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d8b213732169 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/06/10 00:58 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d8b213732169 7086cdb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/06/02 22:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 a4ae4f42 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/05/28 04:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/05/28 02:00 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eb0f1697d729 cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/08/28 07:19 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a41a877bc12d 07177916 .config console log report info ci-upstream-gce-arm64 BUG: soft lockup in tx
2024/10/27 08:01 upstream 850925a8133c 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tx
2024/07/04 20:16 upstream 795c58e4c7fc dc6bbff0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: rcu detected stall in tx
2024/04/29 06:39 upstream e67572cd2204 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 INFO: rcu detected stall in tx
2025/01/05 23:48 net 8ce4f287524c f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tx
2024/11/27 15:51 net 5dfd7d940094 52b38cc1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce INFO: rcu detected stall in tx
* Struck through repros no longer work on HEAD.