On Wed, 3 July 2013 12:25:41 +0100, Steve Capper wrote: > > Today's linux-next appears to introduce some BUGs when running the libhugetlbfs > testsuite (under both ARM64 and x86_64): > > [ 94.320661] BUG: Bad rss-counter state mm:ffff880119461040 idx:1 val:-512 > [ 94.330346] BUG: Bad rss-counter state mm:ffff880119460680 idx:1 val:-2560 > [ 94.341746] BUG: Bad rss-counter state mm:ffff880119460d00 idx:1 val:-512 > [ 94.347518] BUG: Bad rss-counter state mm:ffff880119460d00 idx:1 val:-512 > [ 94.415203] BUG: Bad rss-counter state mm:ffff8801194f9040 idx:1 val:-1024 > > I've bisected this to commit: > commit 446313e3e4e7274c4d1e449d107fab6c041ec59c > hugetlb: properly account rss > > The bad counter values I get are all negative. > > To reproduce this, just run through the latest libhugetlbfs test suite, these > warnings appear pretty much immediately. (I set aside 200 huge pages first): > http://libhugetlbfs.sourceforge.net/ > > Reverting this commit allows the test suite to run without problems. Thank you, I will have a look. For the interim, dropping this patch from -mm seems the best approach. Jörn -- Geld macht nicht glücklich. Glück macht nicht satt. -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
