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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: 467d, last: 10d
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
[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 (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: soft lockup in tx C error 2 611d 790d 0/1 upstream: reported C repro on 2021/10/09 08:02
linux-4.19 BUG: soft lockup in tx C done 1 825d 855d 1/1 fixed on 2021/10/04 07:44
linux-6.1 BUG: soft lockup in tx 3 104d 228d 0/3 auto-obsoleted due to no activity on 2023/12/03 12:31
linux-5.15 BUG: soft lockup in tx 20 15d 242d 0/3 upstream: reported on 2023/04/10 07:10
upstream INFO: rcu detected stall in tx net C error unreliable 3 825d 963d 22/25 fixed on 2021/11/10 00:50
upstream INFO: rcu detected stall in tx (2) serial 79 591d 709d 0/25 auto-closed as invalid on 2022/08/24 07:21
▶ ▼ Last patch testing requests (4)
Created Duration User Patch Repo Result
2023/11/26 14:30 23m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2023/08/25 01:50 33m 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 (55):
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
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
2023/05/23 01:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci f1fcbaa18b28 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/05/14 06:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/04/21 23:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/04/21 19:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/04/20 23:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/04/19 22:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 327bf9bb94cf a219f34e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/04/09 12:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9a03cbd79d3a 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/04/08 15:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9a03cbd79d3a 71147e29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/04/04 05:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59caa87f9dfb 7db618d0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/04/03 15:36 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59caa87f9dfb 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/03/14 00:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 026e2200 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/03/13 02:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe15c26ee26e 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/03/02 10:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2ebd1fbb946d f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/03/01 14:24 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2ebd1fbb946d f8902b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/02/19 20:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2d3827b3f393 bcdf85f8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/02/15 22:07 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2d3827b3f393 6be0f1f5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/02/10 14:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci eaed33698e35 07980f9d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/02/05 18:25 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ca72d58361ee be607b78 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/02/05 10:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ca72d58361ee be607b78 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/01/21 10:52 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci edb2f0dc90f2 559a440a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/01/07 15:26 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ae87308093bc 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/01/06 12:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 247f34f7b803 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/01/06 11:38 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 247f34f7b803 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/01/02 11:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 ab32d508 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/01/02 09:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 ab32d508 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2023/01/02 02:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 ab32d508 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/12/29 07:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 44712fbc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/12/27 02:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 9da18ae8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/12/10 09:09 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 67be1ae7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/12/09 05:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 1034e5fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/12/04 19:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e3cb714fb489 e080de16 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/12/03 03:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e3cb714fb489 e080de16 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/11/19 03:29 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 9500fc6e9e60 5bb70014 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/10/12 05:26 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bbed346d5a96 16a9c9e0 .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/09/20 11:23 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 7c41a9ba .config console log report info ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/09/18 02:41 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a6b443748715 dd9a85ff .config console log report info [disk image] [vmlinux] ci-upstream-gce-arm64 BUG: soft lockup in tx
2022/09/08 23:46 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 25050c56fa3c f3027468 .config console log report info 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
2022/09/24 07:16 upstream 1707c39ae309 0042f2b4 .config console log report info [disk image] [vmlinux] ci-upstream-kasan-gce-selinux-root INFO: rcu detected stall in tx
* Struck through repros no longer work on HEAD.