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Groups > linux.kernel > #1505034
| From | Dan Williams <dan.j.williams@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: 4.9-rc1 boot regression, ambiguous bisect result |
| Date | 2016-10-20 17:30 +0200 |
| Message-ID | <suns6-Ws-7@gated-at.bofh.it> (permalink) |
| References | <sucQ1-2td-1@gated-at.bofh.it> <sukDU-7vO-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Oct 20, 2016 at 5:29 AM, Matt Fleming <matt@codeblueprint.co.uk> wrote: > On Wed, 19 Oct, at 09:04:29PM, Dan Williams wrote: >> Hi, >> >> I am currently unable to boot a Yoga 900 with latest mainline, but 4.8 boots. >> >> The symptom is a reboot before the video console is available. >> >> I bisected to commit 816e76129ed5 "efi: Allow drivers to reserve boot >> services forever". However, that commit is known to be broken. The >> proposed fix, commit 92dc33501bfb "x86/efi: Round EFI memmap >> reservations to EFI_PAGE_SIZE", also exhibits the reboot problem. >> >> During the bisect some of the stopping points landed on commits that >> caused the boot process to hang rather than cause a reboot. The >> commits that resulted in a hang are marked "git bisect skip" in this >> log: https://gist.github.com/djbw/1b501daa98192a42ae848f03bb59c30e >> >> I'll try treating those hangs as bad bisect results and re-run the >> full bisect tomorrow. In the meantime I wonder if the bisect log >> implicates a better regression candidate? > > Could you mail the dmesg output when booting a known working kernel > with efi=debug ? Here it is: https://gist.github.com/djbw/cae05e721b159d5ad7b146d7a93f5fa2
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4.9-rc1 boot regression, ambiguous bisect result Dan Williams <dan.j.williams@intel.com> - 2016-10-20 06:10 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Ingo Molnar <mingo@kernel.org> - 2016-10-20 08:30 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Matt Fleming <matt@codeblueprint.co.uk> - 2016-10-20 14:30 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Dan Williams <dan.j.williams@intel.com> - 2016-10-20 17:30 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Dan Williams <dan.j.williams@intel.com> - 2016-10-20 21:40 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Ingo Molnar <mingo@kernel.org> - 2016-10-21 09:10 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Dan Williams <dan.j.williams@intel.com> - 2016-10-21 20:30 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Matt Fleming <matt@codeblueprint.co.uk> - 2016-10-21 17:50 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Matt Fleming <matt@codeblueprint.co.uk> - 2016-10-21 22:30 +0200
Re: 4.9-rc1 boot regression, ambiguous bisect result Dan Williams <dan.j.williams@intel.com> - 2016-10-22 01:30 +0200
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