Solved: I parallel fresh installed ubuntu 9.10 on new partition without delete my old upgraded installation. And then I rebooted and start with my old installation. There was surprise, kernel oops problem had gone away. After that I deleted new installation and partition then I recover my grub2. Now my upgraded old Ubuntu installation is working charm :)
I think that its grub2 boot problem. Try to reinstall and recover grub2. -- WARNING: at /build/buildd/linux-2.6.31/fs/quota/dquot.c:964 dquot_claim_space+0x84/0x130() https://bugs.launchpad.net/bugs/442799 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs