linux-kernel - Re: Too async libata breakage

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Message-ID: <b6fcc0a0901081202m30be591fse66e7f38477e0c0c@mail.gmail.com>
Date:	Thu, 8 Jan 2009 23:02:33 +0300
From:	"Alexey Dobriyan" <adobriyan@...il.com>
To:	arjan@...radead.org, torvalds@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Too async libata breakage

> On Thu, 8 Jan 2009 22:15:56 +0300
> "Alexey Dobriyan" <adobriyan@...il.com> wrote:
>
> > commit f29d3b23238e1955a8094e038c72546e99308e61 aka
> > "fastboot: Make libata initialization even more async"
> > results in no findable /dev/sda2 to mount / here.
> >
> > Kernel correctly sees sda as 750GB drive and the rest too.
> >
> > CONFIG_ATA_PIIX is in use, everything built-in, plain partitions,
> > no initrd, DM, MD etc.
>
> hmm.
> no initrd;
>
> can you try an experiment?
> if you edit init/do_mounts.c and find the "async_synchronize_full" call.
> that is just after a while() loop.
> Can you put another call to synchronize_full to also just before that
> while loop and see if that fixes it ?

Additional async_synchronize_full() helps and box boot to the end.

Hopefully noone depends on /proc/partitions being in alphabetical order. :-)
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