Date: Tue, 11 Jul 2017 13:13:21 -0400 From: Michael Butler <imb@protected-networks.net> To: Warner Losh <imp@bsdimp.com> Cc: FreeBSD Current <current@freebsd.org> Subject: Re: Panic on boot after upgrade from r320827 -> r320869 Message-ID: <954e8793-7e17-8ae4-8449-39c742e0d432@protected-networks.net> In-Reply-To: <CANCZdfp09QLQRgENS73JqbH-UwkjXvUB2j21xNes0zyeWc02VA@mail.gmail.com> References: <20170710115109.GD1177@albert.catwhisker.org> <20170711121311.GI1177@albert.catwhisker.org> <CANCZdfqRMybt2yzr8GrZCKtvh7WSkeorKXJ%2Bt5wtDSSY75S8fg@mail.gmail.com> <b1b65804-9752-942c-dbfd-075a4c5d6317@protected-networks.net> <CANCZdfp09QLQRgENS73JqbH-UwkjXvUB2j21xNes0zyeWc02VA@mail.gmail.com>
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On 7/11/17 1:09 PM, Warner Losh wrote: >> On a machine with SDHCI, a clean rebuild (after "r -rf /usr/obj") refuses >> to find /dev/ada0 :-( >> > > Take sdhci out of the kernel and try again. If that works, it tells us one > thing (need to troubleshoot sdhci stuff more). If not it tells us another > (need to troubleshoot CAM more), do we get errors with the ATA_IDENTIFY > command? Does it try multiple times per AHCI port? What AHCI device do you > have? You may need to scroll back with the screen-lock / pageup keys to see > these messages. > > Plus we know we have at least one bug in meta-mode rebuilding since not > everything is being rebuilt that should be across this change. > > The change itself didn't change CAM except for copying one set of data it > didn't used to, into a structure whose size grew (which is why we're seeing > crashes / failures for a 'cross-threaded' rebuild). There's nothing else > that changed (especially after I removed the bogus debug printfs) that I > can see in auditing the change. > > I was really hoping David's machine would exhibit the behavior since we're > co-workers and have a shared infrastructure for debugging we can leverage. I'll try this tonight when I'm back at home. The laptop concerned uses the ICH-7M part in "legacy mode" so it doesn't do AHCI at all :-( imb
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