Messages in this thread | | | Date | Fri, 31 May 2013 12:05:42 -0700 | From | Andrew Morton <> | Subject | Re: Regression introduced by commit "lib/bitmap.c: speed up bitmap_find_free_region" |
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On Fri, 31 May 2013 12:15:10 +0530 Sachin Kamat <sachin.kamat@linaro.org> wrote:
> Hi, > > While testing MFC decoder on Exynos machines, I encountered some > memory allocation errors due to failure of dma_alloc_coherent(). > File: drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c Line: 38. > > Git bisect pointed me to the following commit as the first bad commit > (linux-next tree of 20130531): > > commit 3d5272d9b289cd0930b2ea9984406d757a72f4dd > Author: Chanho Min <chanho.min@lge.com> > Date: Thu May 23 10:37:28 2013 +1000 > lib/bitmap.c: speed up bitmap_find_free_region > > Reverting this (and the commit 197e1cf7 > ("ib-bitmapc-speed-up-bitmap_find_free_region-fix") ) fixes this > issue. > > Looks like some regression has been introduced by the above patch?
Thanks. I dropped the patches for now, to minimise linux-next breakage. Hopefully we'll be able to identify and fix this at a later time.
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