[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-19 Thread Ante Karamatić
Please install linux-crashdump package and reboot the machine. This will enable core dump once the crash happens again. ** Package changed: ocfs2-tools (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Invalid => New -- You received this bug notification because you are a

Re: [Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-18 Thread Alex Harrington
The box messed about again yesterday. This time I was still able to Ctrl+F1, Ctrl+F2 between terminals but it wouldn't accept any console input. Nor would it respond to anything except pings on the LAN. The keyboard Num/Caps/Scroll were flashing on the keyboard. On reset there doesn't seem to have

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-18 Thread Chuck Short
** Package changed: openssh (Ubuntu) => ocfs2-tools (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to ocfs2-tools in ubuntu. https://bugs.launchpad.net/bugs/726461 Title: sshd on lucid causes kernel panic -- Ubuntu-server-bu

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-11 Thread Ante Karamatić
OK. If you follow the procedure in the upper link, debugging will occur only if the problem happens again. Until then we'll mark this bug as invalid since hardware replacement fixed the issue. Please reopen if it happens again. Thank you! ** Changed in: openssh (Ubuntu) Status: Incomplete

Re: [Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-10 Thread Alex Harrington
I'm not at work this week, but I'll look at it when I get back. Touch wood the extra RAM seems to have stopped it happening so far this week. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. https://bugs.launchpad.net/

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-10 Thread Ante Karamatić
Would it be possible to setup kdump/kexec and have them execute on crash? That would enable us to get the core and see what's going on when crash occurs. https://wiki.ubuntu.com/Kernel/CrashdumpRecipe Thank you! -- You received this bug notification because you are a member of Ubuntu Server Tea

Re: [Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-03 Thread Alex Harrington
The OCFS2 filesystem is held on an OpenFiler box. Cluster A is our live VM system with two nodes. Cluster B is the backup system (the box in question). Once a week, the OpenFiler box takes an LVM snapshot of the filesystem normally used by cluster A and exports it as a new iSCSI target. The backu

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-03 Thread Ante Karamatić
One more thing; is the backup server also a member of clusterB? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. https://bugs.launchpad.net/bugs/726461 Title: sshd on lucid causes kernel panic -- Ubuntu-server-bug

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-03 Thread Ante Karamatić
So, LVM2 snapshot from clusterA is exported as iSCSI device to clusterB which then mounts it and copies the VMs from that device. At some point during the process, machine exporting iSCSI device crashes. So, machine that's crashing isn't really using OCFS2 and therefor doesn't have OCFS2 setup at

Re: [Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-03 Thread Alex Harrington
It's using the native DLM. However, it's the only node in the cluster. Our live VM environment is Ubuntu server running KVM and OCFS2 and we have 2 nodes. This box is just a backup server which takes an lvm2 snapshot of the OCFS2 filesystem, exports it over iSCSI and then as a separate cluster moun

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-03 Thread Ante Karamatić
How is the OCFS2 configured? Are you using it's native DLM (o2cb cluster stack) or did you tie it with pacemaker (user cluster stack)? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. https://bugs.launchpad.net/bugs/72

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-03 Thread Serge Hallyn
Thanks, please let us know if adding more ram does not (or does) help. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. https://bugs.launchpad.net/bugs/726461 Title: sshd on lucid causes kernel panic -- Ubuntu-ser

Re: [Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-02 Thread Alex Harrington
> Has every instance of this bug involved ssh in the stack trace? All the ones we've had to date. I initially thought it was apparmor related because it mentions memory allocation etc but having removed the packages and rebuilt initramfs I guess not. If it happens again from now on, I'll make sur

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-03-02 Thread Serge Hallyn
Thanks for taking the time to report this bug and helping to make Ubuntu better. Has every instance of this bug involved ssh in the stack trace? Can you describe the software raid stack in detail? My first guess would be that OCFS is to blame. Would it be possible to run this server for awhile

[Bug 726461] Re: sshd on lucid causes kernel panic

2011-02-28 Thread Alex Harrington
** Attachment added: "Photo of the error output" https://bugs.launchpad.net/bugs/726461/+attachment/1876255/+files/IMG_20110228_101124.jpg -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to openssh in ubuntu. https://bugs.launchpad.net