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Message-ID: <alpine.SOC.1.00.1404170119550.20193@math.ut.ee> Date: Thu, 17 Apr 2014 01:22:17 +0300 (EEST) From: mroos@...ux.ee To: David Miller <davem@...emloft.net> cc: aaro.koskinen@....fi, sparclinux@...r.kernel.org, Linux Kernel list <linux-kernel@...r.kernel.org>, hughd@...gle.com Subject: Re: sparc64 WARNING: at mm/mmap.c:2757 exit_mmap+0x13c/0x160() > > Just for the archives, I got one of these again with 3.14: > > Meelis and Aaro, thanks again for all of your reports. > > After pouring over a lot of the data and auditing some code I'm > suspecting it's a problem with transparent huge pages. > > One thing you two can do to help me further confirm this is to run > with THP disabled for a while and see if you still get the log > messages. I have snice turned off CONFIG_TRANSPARENT_HUGEPAGE on 3 of 4 servers that had this problem (actually most of my sparc64 machines) and the 4th has CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y CONFIG_TRANSPARENT_HUGEPAGE=y # CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y # CONFIG_HUGETLBFS is not set # CONFIG_HUGETLB_PAGE is not se and also has not had this problem since then. All 4 machines have been running through most -rc's of every kernel. -- Meelis Roos <mroos@...ux.ee> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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