[Bug 1785686] Re: makedumpfile not able to use compression in trusty kernel 3.13 (fallback to 'cp')
Marking "Won't Fix" as trusty is ESM only now. Could as well be Invalid, though it's possible there is a bug dumping a kexeced kernel. ** Also affects: makedumpfile (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: makedumpfile (Ubuntu Trusty) Status: New => Won't Fix ** Changed in: makedumpfile (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785686 Title: makedumpfile not able to use compression in trusty kernel 3.13 (fallback to 'cp') To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1785686/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1785686] Re: makedumpfile not able to use compression in trusty kernel 3.13 (fallback to 'cp')
For the record, Guilherme and I concluded that when dumping a kexec kernel, there may be leftover memory from the previous kernel which causes the dump to be corrupted. That was after I ran some tests that showed that when booting a 3.13.0-137, kexecing a 3.13.0-85, then dumping, the dump would contain 3.13.0-137 versions. And Guilherme confirmed that kexec was used to boot kernels once in a while during the tests. As the test results from Guilherme include boots with kexec and without it, and the results were not consistent, the suggestion is that multiple dumps be taken only when cold booting a 3.13 kernel, using makedumpfile shipped from trusty-updates. And that those be verified with crash. Cascardo. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785686 Title: makedumpfile not able to use compression in trusty kernel 3.13 (fallback to 'cp') To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1785686/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1785686] Re: makedumpfile not able to use compression in trusty kernel 3.13 (fallback to 'cp')
Can you try using the makedumpfile on trusty-backports? Thanks. Cascardo. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785686 Title: makedumpfile not able to use compression in trusty kernel 3.13 (fallback to 'cp') To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1785686/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1785686] Re: makedumpfile not able to use compression in trusty kernel 3.13 (fallback to 'cp')
I managed to create successful compressed dumps with trusty makedumpfile Version: 1.5.5-2ubuntu1.6, with both a linux-3.13.0-137 and a linux-3.13.0-85. That was on an amd64 kvm system. So, this tells me this is system dependent, and we need more information on its configuration, and all the help and data we can gather to debug this, as it's likely we won't be able to easily reproduce it. Cascardo. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785686 Title: makedumpfile not able to use compression in trusty kernel 3.13 (fallback to 'cp') To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/makedumpfile/+bug/1785686/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
