On Wednesday 25 May 2011 00:23:22 zongo saiba wrote: > Hi Guys, > > I have been running Ubuntu Server 11.04 for a couple of weeks with a Samba > server and it is running great. The other day a client win7 tried to do a > backup to the allocated Samba share and the server kernel-panicked on me. > > Since then, every single time win7 clients are trying to do backups on > allocated shares through Samba protocol, the server kernel-panicked and I > have to reboot it. > > The only reason I found in the logs for the KP :" kernel panic - not > syncing: fatal exception in interrupt". > > I immediately tested my ram with memtest-86 and all is ok > > I mounted two external usb drives on the shares and tried to run the > backups on the usb drives and the issue is identical. The server KP every > single time. > > I then run HDD test on both external USB drives and internal drive of the > server and all is ok. > > I have searched google for an answer but to no avail. All the posts > referred back to a potential hardware issue on the server. Hardware wise, > my server has no issues. > > Any help is much appreciated on sorting the issue as I have no idea on > where to look for a solution.
I've given up on using Ubuntu as a file server solution. It can't handle high disk I/O. I'd still like to know where the problem lies though. Have you only been testing with samba? You could try installing rsync[1]. (deltacopy) on Windows and copy a large amount of data over to the Ubuntu server. Make sure you can copy at high speed. Do you have more information about your system? - What's the memory usage during a copy? - Do you use LVM? Do you have snapshots. (snapshots would explain the issue) - Are there any more messages in /var/log/kern.log? [1] https://bugs.launchpad.net/bugs/750359 Kernel panics under load -- ubuntu-server mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-server More info: https://wiki.ubuntu.com/ServerTeam
