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Groups > linux.kernel > #1512052 > unrolled thread

Re: 4.9-rc1 boot regression, ambiguous bisect result

Started byThorsten Leemhuis <regressions@leemhuis.info>
First post2016-10-30 13:10 +0100
Last post2016-11-03 06:20 +0100
Articles 5 — 4 participants

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  Re: 4.9-rc1 boot regression, ambiguous bisect result Thorsten Leemhuis <regressions@leemhuis.info> - 2016-10-30 13:10 +0100
    Re: 4.9-rc1 boot regression, ambiguous bisect result Dan Williams <dan.j.williams@intel.com> - 2016-10-30 17:10 +0100
      Re: 4.9-rc1 boot regression, ambiguous bisect result Matt Fleming <matt@codeblueprint.co.uk> - 2016-10-31 10:40 +0100
      Re: 4.9-rc1 boot regression, ambiguous bisect result "Neri, Ricardo" <ricardo.neri@intel.com> - 2016-11-03 01:50 +0100
        Re: 4.9-rc1 boot regression, ambiguous bisect result Dan Williams <dan.j.williams@intel.com> - 2016-11-03 06:20 +0100

#1512052 — Re: 4.9-rc1 boot regression, ambiguous bisect result

FromThorsten Leemhuis <regressions@leemhuis.info>
Date2016-10-30 13:10 +0100
SubjectRe: 4.9-rc1 boot regression, ambiguous bisect result
Message-ID<sxX62-4sU-21@gated-at.bofh.it>
JFYI: I added this report to the list of regressions for Linux 4.9. I'll
watch this thread for further updates on this issue to document progress
in my weekly reports. Please let me know via regressions@leemhuis.info
in case the discussion moves to a different place (bugzilla or another
mail thread for example). tia!

Current status (afaics) in my report: This looks stuck. Or was is
discussed (or even fixed) somewhere else?

Ciao, Thorsten

On 22.10.2016 01:20, Dan Williams wrote:
> On Fri, Oct 21, 2016 at 1:20 PM, Matt Fleming <matt@codeblueprint.co.uk> wrote:
>> On Fri, 21 Oct, at 04:41:29PM, Matt Fleming wrote:
>>>
>>> FYI, I've been able to reproduce some crash when using your EFI memory
>>> map layout under Qemu and forcing the ESRT driver to reserve the space.
>>
>> Nope, that was a bug in my hack. I can't get Qemu to crash while using
>> your memory map layout.
>>
>> Any chance you can insert "while(1)" loops into the EFI boot paths for
>> a kernel that is known to reboot or trigger a triple fault in kernels
>> that hang, so that we can narrow in on the issue. See,
>>
>>   http://www.codeblueprint.co.uk/2015/04/early-x86-linux-boot-debug-tricks.html
> 
> I can take a look, but it will not be until Monday when I have
> physical access to the system again.
> 
> http://news.gmane.org/find-root.php?message_id=CAPcyv4jkVcBwecxwt1P+p-fMSuen9B9xHEVf0BjM5uJZ4_jAdw%40mail.gmail.com 
> http://mid.gmane.org/CAPcyv4jkVcBwecxwt1P+p-fMSuen9B9xHEVf0BjM5uJZ4_jAdw%40mail.gmail.com
> 

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#1512096

FromDan Williams <dan.j.williams@intel.com>
Date2016-10-30 17:10 +0100
Message-ID<sy0Qh-6QV-3@gated-at.bofh.it>
In reply to#1512052
On Sun, Oct 30, 2016 at 5:08 AM, Thorsten Leemhuis
<regressions@leemhuis.info> wrote:
> JFYI: I added this report to the list of regressions for Linux 4.9. I'll
> watch this thread for further updates on this issue to document progress
> in my weekly reports. Please let me know via regressions@leemhuis.info
> in case the discussion moves to a different place (bugzilla or another
> mail thread for example). tia!
>
> Current status (afaics) in my report: This looks stuck. Or was is
> discussed (or even fixed) somewhere else?

Thanks, and no, not fixed yet. I've not found the time to run the
experiments Matt needs, but a colleague has offered to look into it.

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#1512428

FromMatt Fleming <matt@codeblueprint.co.uk>
Date2016-10-31 10:40 +0100
Message-ID<syheq-us-23@gated-at.bofh.it>
In reply to#1512096
On Sun, 30 Oct, at 08:59:58AM, Dan Williams wrote:
> On Sun, Oct 30, 2016 at 5:08 AM, Thorsten Leemhuis
> <regressions@leemhuis.info> wrote:
> > JFYI: I added this report to the list of regressions for Linux 4.9. I'll
> > watch this thread for further updates on this issue to document progress
> > in my weekly reports. Please let me know via regressions@leemhuis.info
> > in case the discussion moves to a different place (bugzilla or another
> > mail thread for example). tia!
> >
> > Current status (afaics) in my report: This looks stuck. Or was is
> > discussed (or even fixed) somewhere else?
> 
> Thanks, and no, not fixed yet. I've not found the time to run the
> experiments Matt needs, but a colleague has offered to look into it.

Of course, if you are willing to help with debugging, Thorsten, it
would be much appreciated and this bug might get fixed sooner.

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#1514224

From"Neri, Ricardo" <ricardo.neri@intel.com>
Date2016-11-03 01:50 +0100
Message-ID<szeo9-55A-11@gated-at.bofh.it>
In reply to#1512096
On Sun, 2016-10-30 at 08:59 -0700, Dan Williams wrote:
> On Sun, Oct 30, 2016 at 5:08 AM, Thorsten Leemhuis
> <regressions@leemhuis.info> wrote:
> > JFYI: I added this report to the list of regressions for Linux 4.9. I'll
> > watch this thread for further updates on this issue to document progress
> > in my weekly reports. Please let me know via regressions@leemhuis.info
> > in case the discussion moves to a different place (bugzilla or another
> > mail thread for example). tia!
> >
> > Current status (afaics) in my report: This looks stuck. Or was is
> > discussed (or even fixed) somewhere else?
> 
> Thanks, and no, not fixed yet. I've not found the time to run the
> experiments Matt needs, but a colleague has offered to look into it.
> --
> To unsubscribe from this list: send the line "unsubscribe linux-efi" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Dan, was there a special configuration that you enabled for this bug?
The person working on the bug can't reproduce the bug in v4.9-rc1 or
v4.9-rc3.

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#1514291

FromDan Williams <dan.j.williams@intel.com>
Date2016-11-03 06:20 +0100
Message-ID<sziBs-7YG-7@gated-at.bofh.it>
In reply to#1514224
On Wed, Nov 2, 2016 at 5:41 PM, Neri, Ricardo <ricardo.neri@intel.com> wrote:
> On Sun, 2016-10-30 at 08:59 -0700, Dan Williams wrote:
>> On Sun, Oct 30, 2016 at 5:08 AM, Thorsten Leemhuis
>> <regressions@leemhuis.info> wrote:
>> > JFYI: I added this report to the list of regressions for Linux 4.9. I'll
>> > watch this thread for further updates on this issue to document progress
>> > in my weekly reports. Please let me know via regressions@leemhuis.info
>> > in case the discussion moves to a different place (bugzilla or another
>> > mail thread for example). tia!
>> >
>> > Current status (afaics) in my report: This looks stuck. Or was is
>> > discussed (or even fixed) somewhere else?
>>
>> Thanks, and no, not fixed yet. I've not found the time to run the
>> experiments Matt needs, but a colleague has offered to look into it.
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-efi" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
> Dan, was there a special configuration that you enabled for this bug?
> The person working on the bug can't reproduce the bug in v4.9-rc1 or
> v4.9-rc3.

I am pxe-booting the platform to an nfs root filesystem.

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