linux-kernel - Re: Regression in IPMI on 4.15.6

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Message-ID: <1b8caafa-0611-c431-a292-38c895db4660@acm.org>
Date:   Fri, 2 Mar 2018 07:46:14 -0600
From:   Corey Minyard <minyard@....org>
To:     Laura Abbott <labbott@...hat.com>
Cc:     openipmi-developer@...ts.sourceforge.net,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Regression in IPMI on 4.15.6

On 02/28/2018 01:07 PM, Corey Minyard wrote:
> On 02/28/2018 08:17 AM, Corey Minyard wrote:
>> On 02/28/2018 07:53 AM, Corey Minyard wrote:
>>> On 02/27/2018 05:55 PM, Laura Abbott wrote:
>>>> Hi,
>>>>
>>>> Fedora got a bug report of a crash in IPMI on 4.15.6
>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1549316
>>>> Unfortunately, it's only a screenshot but it's fairly
>>>> clear. It looks like a panic in the error handling path
>>>> in platform_device_unregister. Any ideas?
>>>>
>>>
>>
>> You may also run into another issue.  You can pull the
>> individual patch at
>>
>> https://github.com/cminyard/linux-ipmi.git 
>> c8a1972e77dbe321ce5ce0247056e727234cbaec
>
> Actually, it needed a few more tweaks.  Can you do change
> 426fa6179dae677134dfb37b21d057819418515b
> instead?  It's "ipmi: Fix some error cleanup issues"
>
> I can send you patches, if you like.  If you could test and get back
> to me, that would be great.

Laura, have you had a chance to test this?  I'd like to get it in soon,
if possible.

Thanks,

-corey

>
> BTW, the IPMI setup in your system is incorrect.  SMBIOS says it's at a
> memory address, but it's at an I/O address.  And the address given
> doesn't appear to be a valid address, the value read doesn't appear
> to be a valid value.
>
> -corey
>
>>
>> for that fix.
>>
>> -corey
>>
>>> Yeah, this is fixed by 174134ac7602 "ipmi_si: Fix error
>>> handling of platform device" in mainstream.
>>>
>>> I guess I need to request a backport of this.
>>>
>>> Thanks for reporting.
>>>
>>> -corey
>>>
>>>
>>>> Thanks,
>>>> Laura
>>>
>>>
>>
>