From: Cyril Hrubis <metan@ucw.cz>
To: Chris Ball <cjb@laptop.org>
Cc: pavel@ucw.cz, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, eric.y.miao@gmail.com,
utx@penguin.cz, zaurus-devel@lists.linuxtogo.org,
marek.vasut@gmail.com, linux-mmc@vger.kernel.org
Subject: Re: zaurus: mmcblk0: error -110
Date: Fri, 15 Apr 2011 23:33:15 +0200 [thread overview]
Message-ID: <20110415213315.GA4420@atrey.karlin.mff.cuni.cz> (raw)
In-Reply-To: <m339lnxes6.fsf@pullcord.laptop.org>
Hi!
> >> > mmc0: error -95 whilst initialising SD card
> >>
> >> That's interesting. Would you mind trying to bisect? (Knowing whether
> >> 2.6.38 final does it, for example, would be very helpful.)
> >
> > It may need one or two tries on 2.6.38 but it's there too.
> >
> >> There aren't many -EOPNOTSUPP returns in the stack. I see:
> >>
> >> card/block.c: mmc_blk_issue_secdiscard_rq and mmc_blk_issue_discard_rq
> >> card/core.c: mmc_erase
> >> core/sd_ops.c: mmc_app_cmd
> >>
> >> Mind doing some instrumentation to figure out which it is?
> >
> > Fails in the mmc_app_cmd.
>
> Okay. mmc_app_cmd() hasn't changed for years, so I'm afraid I don't
> have any strong leads for you -- further bisection (you're pretty
> sure this is a regression?) would be very useful.
Well, I was using some old kernel there and updated to the 2.6.38 recently so
only clue I do have is that it was working on like 2 years old kernel.
And bisection is quite complicated, as number of kernel images simply doesn't
boot there. :(
I will look on this next week (hopefully) thanks anyway for your help so far.
--
metan
prev parent reply other threads:[~2011-04-15 21:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20110412151547.GC20815@atrey.karlin.mff.cuni.cz>
2011-04-12 19:24 ` zaurus: mmcblk0: error -110 Chris Ball
[not found] ` <m3aafvz30t.fsf-0VGQAjvlmrQzNDMTQreKSUB+6BGkLq7r@public.gmane.org>
2011-04-12 19:39 ` Cyril Hrubis
2011-04-12 19:47 ` Chris Ball
[not found] ` <m3oc4bxne1.fsf-0VGQAjvlmrQzNDMTQreKSUB+6BGkLq7r@public.gmane.org>
2011-04-12 20:54 ` Cyril Hrubis
2011-04-12 21:21 ` Chris Ball
2011-04-12 21:39 ` Chris Ball
2011-04-12 22:43 ` Cyril Hrubis
[not found] ` <20110412224333.GA22640-jyMamyUUXNJG4ohzP4jBZS1Fcj925eT/@public.gmane.org>
2011-04-12 22:53 ` Chris Ball
2011-04-15 21:33 ` Cyril Hrubis [this message]
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