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[ Please Cc me on replies ] I had a bug with sdhci which Pierre Ossman looked at for me. In the end essentially the fix was to use HZ=1000 and nothing else. Pierre seemed to think that this was a bug in the scheduler. I'm interested if someone who groks the scheduler could take a look at the mmc/* code and see if it's abusing HZ or if there's anything obviously wrong there. If it's not then perhaps there really is a bug in the scheduler? See http://list.drzeus.cx/pipermail/sdhci-devel/2008-February/002164.html http://list.drzeus.cx/pipermail/sdhci-devel/2008-January/002142.html Here's the log that caused him to suspect the scheduler: http://list.drzeus.cx/pipermail/sdhci-devel/2007-December/002086.html and his post saying so: http://list.drzeus.cx/pipermail/sdhci-devel/2007-December/002087.html Originally I tried to narrow it down: http://list.drzeus.cx/pipermail/sdhci-devel/2007-November/002072.html and shows a commit that seemed to "fix" it for me http://list.drzeus.cx/pipermail/sdhci-devel/2007-November/002072.html but apparently the commit I reverted was good http://list.drzeus.cx/pipermail/sdhci-devel/2007-November/002078.html I'm happy to provide more information or try different kernels/config options etc (I really should upgrade the kernel on my laptop anyway). Thanks, -- ----------( "An excellent suggestion sir, with only two )---------- Simon ----( minor flaws...." - Kryten )---- Nomis Htag.pl 0.0.22 | ||||||||||||
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