Messages in this thread | | | Date | Tue, 14 Oct 2008 23:13:39 +0200 | From | "Luca Tettamanti" <> | Subject | Re: SDHCI: timeout during data transfer |
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On Tue, Oct 14, 2008 at 11:34 AM, Luca Tettamanti <kronos.it@gmail.com> wrote: > On Sun, Oct 12, 2008 at 10:52 AM, Pierre Ossman <drzeus-mmc@drzeus.cx> wrote: >> On Fri, 3 Oct 2008 13:27:52 +0200 >> "Luca Tettamanti" <kronos.it@gmail.com> wrote: >>> >>> Hum, cannot reproduce (but it was consistently failing when I tested >>> the patch... the only difference is a mkfs in between). I just got a >>> few retries: >> >> A silly question, but did you also try disabling the debugging? Since >> this is a timing issue, the debugging output could be just enough to >> make the problem go away. > > Ok, I managed to reproduce without the debugging, but this time it > took over a couple of GB before it started failing. Block numbers > differ from the previous failures (so maybe it's not a cluster of > broken blocks). > Will go back and test with debugging enabled.
I finally managed to capture a failure with debug enabled, I'm attaching the log. To recap: - heavy write loads sometimes result in a timeout - reads seem unaffected (I read the card multiple times without errors) - doubling the timeout (as per my first patch) makes the timeout disappear - windows doesn't suffer from the issue
I've tested two other cards that do not show the problem, but they are not "high speed":
mmc0: new high speed SD card at address 0002 (troubles) vs: mmc0: new SD card at address e624 (OK)
Luca
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