Hi Marcelo, On Tue, Feb 15, 2011 at 20:04, Ruben Kerkhof <ruben@xxxxxxxxxxxxxxxx> wrote: > Hi Marcelo, > > On Tue, Feb 15, 2011 at 18:16, Marcelo Tosatti <mtosatti@xxxxxxxxxx> wrote: >> On Sun, Feb 13, 2011 at 03:03:40PM +0200, Avi Kivity wrote: >>> On 02/13/2011 04:07 AM, Ruben Kerkhof wrote: >>> >And tonight we had another one of those errors we had a few weeks ago: >>> > >>> >2011-02-13T02:56:28.694496+01:00 phy005 kernel: EPT: Misconfiguration. >>> >2011-02-13T02:56:28.694908+01:00 phy005 kernel: EPT: GPA: 0x2edff000 >>> >>> This GPA indexes into the 511th entry of the spte. ÂMarcelo, does >>> this remind you of https://bugzilla.kernel.org/show_bug.cgi?id=27052 >>> by any chance? >> >> This and the others reported. So yes, it looks something is corrupting >> memory. Ruben, you can try to boot with slub_debug=ZFPU kernel option. Ok, there are now only 6 vms left on this host, and I've booted it with the slub_debug=ZFPU option. After a few hours, I got the following result: 2011-02-24T21:41:30.818496+01:00 phy005 kernel: ============================================================================= 2011-02-24T21:41:30.818517+01:00 phy005 kernel: BUG kmalloc-2048 (Not tainted): Object padding overwritten 2011-02-24T21:41:30.818523+01:00 phy005 kernel: ----------------------------------------------------------------------------- 2011-02-24T21:41:30.818526+01:00 phy005 kernel: 2011-02-24T21:41:30.818530+01:00 phy005 kernel: INFO: 0xffff8806230752ca-0xffff8806230752cf. First byte 0x0 instead of 0x5a 2011-02-24T21:41:30.818534+01:00 phy005 kernel: INFO: Allocated in __netdev_alloc_skb+0x34/0x51 age=2231 cpu=8 pid=0 2011-02-24T21:41:30.818537+01:00 phy005 kernel: INFO: Freed in skb_release_data+0xc9/0xce age=2368 cpu=8 pid=2159 2011-02-24T21:41:30.818541+01:00 phy005 kernel: INFO: Slab 0xffffea00157a9880 objects=15 used=13 fp=0xffff8806230752d0 flags=0x40000000004083 2011-02-24T21:41:30.818545+01:00 phy005 kernel: INFO: Object 0xffff880623074a88 @offset=19080 fp=0xffff8806230752d0 The rest of the output is attached since it's quite large. Kind regards, Ruben
Attachment:
messages.gz
Description: GNU Zip compressed data
