linux-kernel - Re: [GIT pull] smp/hotplug: Removal of notifiers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1c76c271-8e04-ddb5-ab4f-c8a0fe99c23f@oracle.com>
Date:   Mon, 26 Dec 2016 15:53:08 -0500
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Markus Trippelsdorf <markus@...ppelsdorf.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Borislav Petkov <bp@...en8.de>
Subject: Re: [GIT pull] smp/hotplug: Removal of notifiers



On 12/26/2016 01:21 PM, Thomas Gleixner wrote:
> On Mon, 26 Dec 2016, Boris Ostrovsky wrote:
>> On 12/26/2016 10:45 AM, Markus Trippelsdorf wrote:
>>> The comment in arch/x86/kernel/cpu/mcheck/mce_amd.c says:
>>>
>>> 1384  * mcheck_init_device should be inited before threshold_init_device to
>>> 1385  * initialize mce_device, otherwise a NULL ptr dereference will cause panic.
>
> That's not changed by this commit.
>
>> My nightly test hit this as well. AMD only, Intel passed. I haven't
>> verified whether commit that Markus implicated is the one that caused
>> this but it's the same BUG signature (but possibly slightly different stack)
>>
>> [    1.554351] smpboot: CPU0: AMD Engineering Sample (family: 0x10,
>> model: 0x4, stepping: 0x1)
>> ...
>
> Is there anything interesting error message before the BUG hits? I'll try
> to reproduce on a AMD box tomorrow.


Nothing that caught my eye. I can post it tomorrow if you are still 
interested.

-boris