They were. But as of -40, the crashes are back. -38 was very stable. -39 did not get much field testing, but was showing some crashes. I have attached the dmesg error we have been getting.
In parallel, we are also testing the -oneiric-lts-backport kernel. That is also stable in version 3.0.0-15-server #26~lucid1-Ubuntu. But as of 3.0.0-17-server #30~lucid1-Ubuntu the crashes and mce errors are back. The systems barely running a couple of hours. HARDWARE ERROR. This is *NOT* a software problem! Please contact your hardware vendor MCE 0 CPU 0 BANK 5 MISC 7fff ADDR 3fff81031d60 TIME 1333609850 Thu Apr 5 09:10:50 2012 MCG status: MCi status: Error overflow Uncorrected error Error enabled MCi_MISC register valid MCi_ADDR register valid Processor context corrupt MCA: Internal Timer error STATUS fe00000000800400 MCGSTATUS 0 MCGCAP 1c09 APICID 0 SOCKETID 0 CPUID Vendor Intel Family 6 Model 26 HARDWARE ERROR. This is *NOT* a software problem! Please contact your hardware vendor MCE 1 CPU 1 BANK 5 MISC 7fff ADDR 3fff81031d60 TIME 1333609850 Thu Apr 5 09:10:50 2012 MCG status: MCi status: Error overflow Uncorrected error Error enabled MCi_MISC register valid MCi_ADDR register valid Processor context corrupt MCA: Internal Timer error STATUS fe00000000800400 MCGSTATUS 0 MCGCAP 1c09 APICID 2 SOCKETID 0 CPUID Vendor Intel Family 6 Model 26 HARDWARE ERROR. This is *NOT* a software problem! Please contact your hardware vendor MCE 2 CPU 2 BANK 5 MISC 7fff ADDR 3fff81031d60 TIME 1333609850 Thu Apr 5 09:10:50 2012 MCG status: MCi status: Error overflow Uncorrected error Error enabled MCi_MISC register valid MCi_ADDR register valid Processor context corrupt MCA: Internal Timer error STATUS fe00000000800400 MCGSTATUS 0 MCGCAP 1c09 APICID 4 SOCKETID 0 CPUID Vendor Intel Family 6 Model 26 HARDWARE ERROR. This is *NOT* a software problem! Please contact your hardware vendor MCE 3 CPU 3 BANK 5 MISC 7fff ADDR 3fff81031d60 TIME 1333609850 Thu Apr 5 09:10:50 2012 MCG status: MCi status: Error overflow Uncorrected error Error enabled MCi_MISC register valid MCi_ADDR register valid Processor context corrupt MCA: Internal Timer error STATUS fe00000000800400 MCGSTATUS 0 MCGCAP 1c09 APICID 6 SOCKETID 0 CPUID Vendor Intel Family 6 Model 26 ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/809313/+attachment/3007615/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/809313 Title: mcelog errors and server freeze with qemu-kvm 0.12.3 and linux- image-2.6.32-32-server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/809313/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs