On Tue, 25 Jan 2011, Will Deacon wrote: > Hi Russell, > > Hopefully this isn't too late to be useful. > > > On Mon, Jan 17, 2011 at 07:21:40PM +0000, Russell King - ARM Linux wrote: > > > Switch the set/clear/change bitops to use the word-based exclusive > > > operations, which are only present in a wider range of ARM architectures > > > than the byte-based exclusive operations. > > > > > > Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> > > > > As only one person replied to this patch with test information, I'm > > not happy to push this into -rc, and hence that prevents it going into > > -stable too. That means omap2plus_defconfig .38 mainline kernels > > (including -stable) will remain potentially dangerous when run on > > SMP capable hardware. > > > > Therefore, I see no alternative at the moment but to purposely cause > > builds which cover ARMv6, and ARMv6K or ARMv7 CPUs to save people from > > data corruption. > > > > Please get your tested-by's to me for at least the first three patches > > of this series ASAP. > > I've tested this on the Versatile Express (ca9x4, little endian) with a USB > hard drive and ext3 (rw) filesystem. I did a bunch of parallel dds of a 2GB > file containing random data whilst the system was fairly loaded. File checksums > all passed and the kernel didn't do anything untowards. > > Tested-by: Will Deacon <will.deacon@xxxxxxx> > > I appreciate this is the same test configuration as the one Nicolas did, > but it at least replicates his findings. Well, I did run parallel instances of the git test suite on a Dove board using the sata_mv driver. Therefore this is still a significant difference in configuration which is good. Nicolas -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
