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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

      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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