[Bug 1235616] Re: linux-crashdump doesn't actually dump and reboot
*** This bug is a duplicate of bug 785394 *** https://bugs.launchpad.net/bugs/785394 Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: kexec-tools (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1235616 Title: linux-crashdump doesn't actually dump and reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1235616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1235616] Re: linux-crashdump doesn't actually dump and reboot
*** This bug is a duplicate of bug 785394 *** https://bugs.launchpad.net/bugs/785394 ** This bug has been marked a duplicate of bug 785394 Hard-coded crashkernel=... memory reservation in /etc/grub.d/10_linux is insufficient -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1235616 Title: linux-crashdump doesn't actually dump and reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1235616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1235616] Re: linux-crashdump doesn't actually dump and reboot
s/Debian/Ubuntu/ — I haven't actually tested this on Debian! (I don't have any debian systems.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1235616 Title: linux-crashdump doesn't actually dump and reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1235616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1235616] Re: linux-crashdump doesn't actually dump and reboot
Btw, just for completenes I have tested this on Debian now too, there the crash kernel crashes. http://i.imgur.com/amCrAZW.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1235616 Title: linux-crashdump doesn't actually dump and reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1235616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1235616] Re: linux-crashdump doesn't actually dump and reboot
Just about the same here on a few generic Ubuntu 12.04.2 VMs (using KVM). Followed the documentation on https://wiki.ubuntu.com/Kernel/CrashdumpRecipe and https://help.ubuntu.com/lts/serverguide/kernel-crash-dump.html which basically says: install linux-crashdump, reboot, check /proc/cmdline, make sure `/proc/sys/kernel/sysrq` is enabled and then echo c /proc/sysrq_trigger. This certainly crashes the VM but it just stays crashed: http://i.imgur.com/amCrAZW.png After forcing a reboot using virt-manager the machine boots fine but /var/crash is empty. No crash dumps, no nothing. What gives? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1235616 Title: linux-crashdump doesn't actually dump and reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1235616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1235616] Re: linux-crashdump doesn't actually dump and reboot
Very interestingly, when setting `crashkernel=128M` instead of the default `crashkernel=384M-2G:64M,2G-:128M`, crashing the machine works correctly and also leaves a crashdump in /var/crash. Unfortunately setting the crashkernel parameter requires editing /etc/grub.d/10_linux directly and can not be overridden by means of /etc/default/grub. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1235616 Title: linux-crashdump doesn't actually dump and reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1235616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1235616] Re: linux-crashdump doesn't actually dump and reboot
Looking further this memory problem is already tracked in bug #785394, untouched for almost two years now. So this bug here should serve as a reminder that the official documentation (https://help.ubuntu.com/lts/serverguide/kernel-crash- dump.html) is wrong. It should at least contain links to the bugs affecting linux-crashdump, like https://wiki.ubuntu.com/Kernel/CrashdumpRecipe#Release_specific_notes does, because when just following the documentation the crashdump functionality just does not work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1235616 Title: linux-crashdump doesn't actually dump and reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kexec-tools/+bug/1235616/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
