Am 08.04.2013 10:13, schrieb Mel Gorman: > On Fri, Apr 05, 2013 at 02:10:32PM +0200, Stefan Priebe - Profihost AG wrote: >> Am 05.04.2013 14:00, schrieb Mel Gorman: >>> On Wed, Apr 03, 2013 at 04:11:24PM +0200, Stefan Priebe - Profihost AG wrote: >>>> Am 03.04.2013 16:03, schrieb Mel Gorman: >>>>>> I've now tested 3.9-rc5 this gaves me a slightly different kernel log: >>>>>> [ 197.236518] pigz[2908]: segfault at 0 ip (null) sp >>>>>> 00007f347bffed00 error 14 >>>>>> [ 197.237632] traps: pigz[2915] general protection ip:7f3482dbce2d >>>>>> sp:7f3473ffec10 error:0 in libz.so.1.2.3.4[7f3482db7000+17000] >>>>>> [ 197.330615] in pigz[400000+10000] >>>>>> >>>>>> With 3.8 it is the same as with 3.8.4 or 3.8.5. >>>>>> >>>>> >>>>> Ok. Are there NUMA machines were you do *not* see this problem? >>>> Sadly no. >>>> >>>> I can really fast reproduce it with this one: >>>> 1.) Machine with only 16GB Mem >>>> 2.) compressing two 60GB Files in parallel with pigz consuming all cores >>>> >>> >>> Ok, I'm dealing with this slower than I'd like due to an unfortunate >>> abundance of bugs right now. I am putting together a reproduction case but >>> I still can't trigger it unfortunately. Can you post your .config in case >>> it's my kernel config that is the reason I can't see the problem please? >> >> no problem. Attaches is my kernel config. >> > > It does indeed appear that the kernel configuration is a factor. Can you > try applying the following to your .config please? > > --- config-bad 2013-04-07 21:08:02.213112445 +0100 > +++ .config 2013-04-07 23:28:09.275973625 +0100 > @@ -2518,8 +2518,8 @@ > CONFIG_TMPFS=y > CONFIG_TMPFS_POSIX_ACL=y > CONFIG_TMPFS_XATTR=y > -# CONFIG_HUGETLBFS is not set > -# CONFIG_HUGETLB_PAGE is not set > +CONFIG_HUGETLBFS=y > +CONFIG_HUGETLB_PAGE=y > CONFIG_CONFIGFS_FS=y > CONFIG_MISC_FILESYSTEMS=y > # CONFIG_ADFS_FS is not set Yes this works! Stefan -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>