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Bug#773355: marked as done (linux-image-3.16.0-4-amd64: kernel bug when hotplugging a CPU)

Your message dated Sat, 8 May 2021 17:21:02 +0200
with message-id <YJasXpkp/GeCGfhO@eldamar.lan>
and subject line Re: Bug#773355: linux-image-3.16.0-4-amd64: kernel bug when hotplugging a CPU
has caused the Debian Bug report #773355,
regarding linux-image-3.16.0-4-amd64: kernel bug when hotplugging a CPU
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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-- 
773355: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=773355
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-image-3.16.0-4-amd64
Version: 3.16.7-ckt2-1
Severity: normal
Tags: upstream fixed-upstream

Hi,

When I hot-plug a CPU to an Ubuntu 14.10 VM running on KVM, I get following
kernel bug:

# uname -a
Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt2-1 (2014-12-08) x86_64 GNU/Linux
# dmesg
[   87.542111] CPU1 has been hot-added
[   87.543866] SMP alternatives: switching to SMP code
[   87.562752] x86: Booting SMP configuration:
[   87.562754] smpboot: Booting Node 0 Processor 1 APIC 0x1
[    0.004000] kvm-clock: cpu 1, msr 0:3ffe1041, secondary cpu clock
[   87.741175] kvm: enabling virtualization on CPU1
[   87.750602] KVM setup async PF for cpu 1
[   87.750602] kvm-stealtime: cpu 1, msr 3de2d080
[   87.750602] microcode: CPU1: patch_level=0x01000065
[   87.751534] Will online and init hotplugged CPU: 1
[   87.752345] kobject '(null)' (ffff88003de39dd8): tried to add an uninitialized object, something is seriously wrong.
[   87.752650] CPU: 0 PID: 422 Comm: systemd-udevd Not tainted 3.16.0-4-amd64 #1 Debian 3.16.7-ckt2-1
[   87.752652] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.752654]  ffff88003ca3bd98 ffffffff81507263 ffff88003de39dd8 ffffffff812a9e63
[   87.752656]  ffffffff00000020 ffff88003ca3bda8 ffff88003ca3bd50 00000001372c4be0
[   87.752658]  000000000000a0a0 000000005b2fd4c0 0000000000000001 ffff8800372c46d0
[   87.752661] Call Trace:
[   87.752668]  [<ffffffff81507263>] ? dump_stack+0x41/0x51
[   87.752671]  [<ffffffff812a9e63>] ? kobject_add+0xa3/0xb0
[   87.752675]  [<ffffffff81288a51>] ? blk_mq_register_hctx+0x91/0xb0
[   87.752678]  [<ffffffff8128930e>] ? blk_mq_sysfs_register+0x3e/0x50
[   87.752680]  [<ffffffff81286f72>] ? blk_mq_queue_reinit_notify+0x72/0xb0
[   87.752683]  [<ffffffff8108a08c>] ? notifier_call_chain+0x4c/0x70
[   87.752686]  [<ffffffff81065a7f>] ? cpu_notify+0x1f/0x40
[   87.752688]  [<ffffffff81065c67>] ? _cpu_up+0x157/0x170
[   87.752691]  [<ffffffff81065cf9>] ? cpu_up+0x79/0xa0
[   87.752693]  [<ffffffff814fe925>] ? cpu_subsys_online+0x35/0x80
[   87.752696]  [<ffffffff8139d1fd>] ? device_online+0x5d/0xa0
[   87.752698]  [<ffffffff8139d2b5>] ? online_store+0x75/0x80
[   87.752701]  [<ffffffff81214d6a>] ? kernfs_fop_write+0xda/0x150
[   87.752704]  [<ffffffff811a5ad2>] ? vfs_write+0xb2/0x1f0
[   87.752707]  [<ffffffff811a6612>] ? SyS_write+0x42/0xa0
[   87.752710]  [<ffffffff8150f398>] ? async_page_fault+0x28/0x30
[   87.752712]  [<ffffffff8150d32d>] ? system_call_fast_compare_end+0x10/0x15

I initially reported this bug in openSUSE and it was fixed in the Linus tree:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06a41a9

Bug-openSUSE: https://bugzilla.novell.com/show_bug.cgi?id=908794
Bug-Ubuntu: https://launchpad.net/bugs/1403459

-- 
Benjamin Drung
System Developer

ProfitBricks GmbH - The IaaS-Company
Greifswalder Str. 207
D - 10405 Berlin

Mail: benjamin.drung@profitbricks.com
Fax:  +49 30 577 008 598
URL:  http://www.profitbricks.com

Sitz der Gesellschaft: Berlin.
Registergericht: Amtsgericht Charlottenburg, HRB 125506 B.
Geschäftsführer: Andreas Gauger, Achim Weiss.

--- End Message ---
--- Begin Message --- 
Source: linux
Source-Version: 3.16.36-1

On Wed, Dec 17, 2014 at 12:18:22PM +0100, Benjamin Drung wrote:
> Package: linux-image-3.16.0-4-amd64
> Version: 3.16.7-ckt2-1
> Severity: normal
> Tags: upstream fixed-upstream
> 
> Hi,
> 
> When I hot-plug a CPU to an Ubuntu 14.10 VM running on KVM, I get following
> kernel bug:
> 
> # uname -a
> Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt2-1 (2014-12-08) x86_64 GNU/Linux
> # dmesg
> [   87.542111] CPU1 has been hot-added
> [   87.543866] SMP alternatives: switching to SMP code
> [   87.562752] x86: Booting SMP configuration:
> [   87.562754] smpboot: Booting Node 0 Processor 1 APIC 0x1
> [    0.004000] kvm-clock: cpu 1, msr 0:3ffe1041, secondary cpu clock
> [   87.741175] kvm: enabling virtualization on CPU1
> [   87.750602] KVM setup async PF for cpu 1
> [   87.750602] kvm-stealtime: cpu 1, msr 3de2d080
> [   87.750602] microcode: CPU1: patch_level=0x01000065
> [   87.751534] Will online and init hotplugged CPU: 1
> [   87.752345] kobject '(null)' (ffff88003de39dd8): tried to add an uninitialized object, something is seriously wrong.
> [   87.752650] CPU: 0 PID: 422 Comm: systemd-udevd Not tainted 3.16.0-4-amd64 #1 Debian 3.16.7-ckt2-1
> [   87.752652] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
> [   87.752654]  ffff88003ca3bd98 ffffffff81507263 ffff88003de39dd8 ffffffff812a9e63
> [   87.752656]  ffffffff00000020 ffff88003ca3bda8 ffff88003ca3bd50 00000001372c4be0
> [   87.752658]  000000000000a0a0 000000005b2fd4c0 0000000000000001 ffff8800372c46d0
> [   87.752661] Call Trace:
> [   87.752668]  [<ffffffff81507263>] ? dump_stack+0x41/0x51
> [   87.752671]  [<ffffffff812a9e63>] ? kobject_add+0xa3/0xb0
> [   87.752675]  [<ffffffff81288a51>] ? blk_mq_register_hctx+0x91/0xb0
> [   87.752678]  [<ffffffff8128930e>] ? blk_mq_sysfs_register+0x3e/0x50
> [   87.752680]  [<ffffffff81286f72>] ? blk_mq_queue_reinit_notify+0x72/0xb0
> [   87.752683]  [<ffffffff8108a08c>] ? notifier_call_chain+0x4c/0x70
> [   87.752686]  [<ffffffff81065a7f>] ? cpu_notify+0x1f/0x40
> [   87.752688]  [<ffffffff81065c67>] ? _cpu_up+0x157/0x170
> [   87.752691]  [<ffffffff81065cf9>] ? cpu_up+0x79/0xa0
> [   87.752693]  [<ffffffff814fe925>] ? cpu_subsys_online+0x35/0x80
> [   87.752696]  [<ffffffff8139d1fd>] ? device_online+0x5d/0xa0
> [   87.752698]  [<ffffffff8139d2b5>] ? online_store+0x75/0x80
> [   87.752701]  [<ffffffff81214d6a>] ? kernfs_fop_write+0xda/0x150
> [   87.752704]  [<ffffffff811a5ad2>] ? vfs_write+0xb2/0x1f0
> [   87.752707]  [<ffffffff811a6612>] ? SyS_write+0x42/0xa0
> [   87.752710]  [<ffffffff8150f398>] ? async_page_fault+0x28/0x30
> [   87.752712]  [<ffffffff8150d32d>] ? system_call_fast_compare_end+0x10/0x15
> 
> I initially reported this bug in openSUSE and it was fixed in the Linus tree:
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06a41a9

This fix was included in 3.16.35 and in the 3.16.36-1 upload.

Regards,
Salvatore

--- End Message ---
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