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Message-ID: <m339lnxes6.fsf@pullcord.laptop.org> Date: Tue, 12 Apr 2011 18:53:29 -0400 From: Chris Ball <cjb@...top.org> To: Cyril Hrubis <metan@....cz> Cc: pavel@....cz, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, eric.y.miao@...il.com, utx@...guin.cz, zaurus-devel@...ts.linuxtogo.org, marek.vasut@...il.com, linux-mmc@...r.kernel.org Subject: Re: zaurus: mmcblk0: error -110 Hi, On Tue, Apr 12 2011, Cyril Hrubis wrote: >> > 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. Thanks, - Chris. -- Chris Ball <cjb@...top.org> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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