* Fwd: DEAD callback error for CPU, WARNING: CPU: 3 PID: 1134 at kernel/cpu.c:1163 _cpu_down+0x20a/0x3a0
[not found] <f6a0f4be-ad53-489c-0036-09dead99f368@gmail.com>
@ 2021-11-07 12:00 ` Colin King (gmail)
2021-11-07 17:29 ` Thorsten Leemhuis
2021-11-07 17:38 ` Thorsten Leemhuis
2 siblings, 0 replies; 6+ messages in thread
From: Colin King (gmail) @ 2021-11-07 12:00 UTC (permalink / raw)
To: regressions
Copying regressions@lists.linux.dev
-------- Forwarded Message --------
Subject: DEAD callback error for CPU, WARNING: CPU: 3 PID: 1134 at
kernel/cpu.c:1163 _cpu_down+0x20a/0x3a0
Date: Sun, 7 Nov 2021 11:59:17 +0000
From: Colin King (gmail) <colin.i.king@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>, Thomas Gleixner
<tglx@linutronix.de>
CC: linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org>
On a SMP system in a VM, a deadlock callback error can be reproduced
with 5.15, tested from head at commit
d4439a1189f93d0ac1eaf0197db8e6b3e197d5c7
Didn't see this issue on 5.13
How to reproduce:
git clone https://github.com/ColinIanKing/stress-ng
cd stress-ng
make -j $(nproc)
sudo ./stress-ng --cpu-online 0 -t 15 --pathological
Tested on a 8 thread virtual machine, 4MB of memory.
[ 2239.378724] smpboot: CPU 6 is now offline
[ 2239.379443] smpboot: Booting Node 0 Processor 6 APIC 0x6
[ 2239.380169] kvm-clock: cpu 6, msr 79201181, secondary cpu clock
[ 2239.401652] ------------[ cut here ]------------
[ 2239.401658] DEAD callback error for CPU6
[ 2239.401721] WARNING: CPU: 3 PID: 1134 at kernel/cpu.c:1163
_cpu_down+0x20a/0x3a0
[ 2239.401856] Modules linked in: dm_multipath scsi_dh_rdac scsi_dh_emc
scsi_dh_alua intel_rapl_msr intel_rapl_common kvm_intel
snd_hda_codec_generic ledtrig_audio snd_hda_intel kvm snd_intel_dspcfg
snd_intel_sdw_acpi snd_hda_codec rapl joydev input_leds snd_hda_core
snd_hwdep snd_pcm snd_timer snd serio_raw soundcore qemu_fw_cfg mac_hid
sch_fq_codel msr virtio_rng ip_tables x_tables autofs4 btrfs
blake2b_generic zstd_compress raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1
raid0 multipath linear qxl hid_generic drm_ttm_helper ttm drm_kms_helper
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel virtio_net syscopyarea
aesni_intel sysfillrect sysimgblt fb_sys_fops cec usbhid crypto_simd
net_failover rc_core i2c_i801 ahci hid cryptd i2c_smbus psmouse libahci
drm lpc_ich virtio_blk failover
[ 2239.402631] CPU: 3 PID: 1134 Comm: stress-ng Not tainted 5.15.0+ #1
[ 2239.402649] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
1.14.0-2 04/01/2014
[ 2239.402654] RIP: 0010:_cpu_down+0x20a/0x3a0
[ 2239.402664] Code: 8b 03 41 39 c6 7f 6f 39 45 c0 0f 8e 34 ff ff ff 3d
96 00 00 00 0f 84 be 00 00 00 44 89 ee 48 c7 c7 f3 38 9a 95 e8 26 a2 f9
ff <0f> 0b e9 13 ff ff ff e8 3a bd 52 ff e9 2a ff ff ff f0 48 0f b3 05
[ 2239.402744] RSP: 0018:ffffa30e008b7cc0 EFLAGS: 00010282
[ 2239.402755] RAX: 0000000000000000 RBX: ffff8ccb7bda0660 RCX:
0000000000000000
[ 2239.402760] RDX: 0000000000000001 RSI: ffffffff959b6099 RDI:
00000000ffffffff
[ 2239.402766] RBP: ffffa30e008b7d00 R08: 0000000000000000 R09:
ffffa30e008b7ab0
[ 2239.402771] R10: ffffa30e008b7aa8 R11: ffffffff96356908 R12:
0000000000000000
[ 2239.402776] R13: 0000000000000006 R14: 0000000000000096 R15:
00000000ffffffea
[ 2239.402783] FS: 00007f5ee8713740(0000) GS:ffff8ccb7bcc0000(0000)
knlGS:0000000000000000
[ 2239.402791] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2239.402796] CR2: 000055e786065c20 CR3: 000000010622e004 CR4:
0000000000370ee0
[ 2239.402811] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 2239.402816] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 2239.402821] Call Trace:
[ 2239.402827] <TASK>
[ 2239.402938] cpu_device_down+0x34/0x60
[ 2239.403018] cpu_subsys_offline+0xe/0x10
[ 2239.403086] device_offline+0xe6/0x110
[ 2239.403095] online_store+0x53/0xc0
[ 2239.403103] dev_attr_store+0x17/0x30
[ 2239.403155] sysfs_kf_write+0x3e/0x50
[ 2239.403193] kernfs_fop_write_iter+0x137/0x1c0
[ 2239.403207] new_sync_write+0x117/0x1a0
[ 2239.403264] vfs_write+0x211/0x2a0
[ 2239.403276] ksys_write+0x67/0xe0
[ 2239.403290] __x64_sys_write+0x19/0x20
[ 2239.403303] do_syscall_64+0x5c/0xc0
[ 2239.403316] ? exc_page_fault+0x89/0x180
[ 2239.403323] ? asm_exc_page_fault+0x8/0x30
[ 2239.403349] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 2239.403359] RIP: 0033:0x7f5ee8c1b777
[ 2239.403395] Code: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f
1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f
05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[ 2239.403425] RSP: 002b:00007ffe09004648 EFLAGS: 00000246 ORIG_RAX:
0000000000000001
[ 2239.403432] RAX: ffffffffffffffda RBX: 0000000000000003 RCX:
00007f5ee8c1b777
[ 2239.403436] RDX: 0000000000000003 RSI: 00007ffe0900467d RDI:
0000000000000004
[ 2239.403439] RBP: 00007ffe09004680 R08: 0000000000000000 R09:
00007ffe09004500
[ 2239.403442] R10: 0000000000000000 R11: 0000000000000246 R12:
00007ffe0900467d
[ 2239.403454] R13: 0000000000000004 R14: 0000000000000006 R15:
000055e785de5f08
[ 2239.403463] </TASK>
[ 2239.403466] ---[ end trace e92cc28a4b580b82 ]---
See bug report https://bugzilla.kernel.org/show_bug.cgi?id=214955
Colin
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: DEAD callback error for CPU, WARNING: CPU: 3 PID: 1134 at kernel/cpu.c:1163 _cpu_down+0x20a/0x3a0
[not found] <f6a0f4be-ad53-489c-0036-09dead99f368@gmail.com>
2021-11-07 12:00 ` Fwd: DEAD callback error for CPU, WARNING: CPU: 3 PID: 1134 at kernel/cpu.c:1163 _cpu_down+0x20a/0x3a0 Colin King (gmail)
@ 2021-11-07 17:29 ` Thorsten Leemhuis
2021-11-07 17:35 ` Thorsten Leemhuis
2021-11-07 17:38 ` Thorsten Leemhuis
2 siblings, 1 reply; 6+ messages in thread
From: Thorsten Leemhuis @ 2021-11-07 17:29 UTC (permalink / raw)
To: regressions
On 07.11.21 12:59, Colin King (gmail) wrote:
> On a SMP system in a VM, a deadlock callback error can be reproduced
> with 5.15, tested from head at commit
> d4439a1189f93d0ac1eaf0197db8e6b3e197d5c7
>
> Didn't see this issue on 5.13
> […]
> See bug report https://bugzilla.kernel.org/show_bug.cgi?id=214955
#regzbot introduced v5.13..
#regzbot link https://bugzilla.kernel.org/show_bug.cgi?id=214955
Bugzilla Ticket
#regzbot activity-ignore
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: DEAD callback error for CPU, WARNING: CPU: 3 PID: 1134 at kernel/cpu.c:1163 _cpu_down+0x20a/0x3a0
[not found] <f6a0f4be-ad53-489c-0036-09dead99f368@gmail.com>
2021-11-07 12:00 ` Fwd: DEAD callback error for CPU, WARNING: CPU: 3 PID: 1134 at kernel/cpu.c:1163 _cpu_down+0x20a/0x3a0 Colin King (gmail)
2021-11-07 17:29 ` Thorsten Leemhuis
@ 2021-11-07 17:38 ` Thorsten Leemhuis
2021-11-15 14:23 ` Thorsten Leemhuis
2 siblings, 1 reply; 6+ messages in thread
From: Thorsten Leemhuis @ 2021-11-07 17:38 UTC (permalink / raw)
To: regressions
On 07.11.21 12:59, Colin King (gmail) wrote:
> On a SMP system in a VM, a deadlock callback error can be reproduced
> with 5.15, tested from head at commit
> d4439a1189f93d0ac1eaf0197db8e6b3e197d5c7
>
> Didn't see this issue on 5.13
> […]
> See bug report https://bugzilla.kernel.org/show_bug.cgi?id=214955
#regzbot ^introduced: v5.13..
#regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=214955
Bugzilla Ticket
#regzbot activity-ignore
^ permalink raw reply [flat|nested] 6+ messages in thread