On 01/28/2013 05:31 PM, Sam Varshavchik wrote:
When the machine freezes, try pressing Alt-SysRq-b to force a reboot, if the kernel is still alive, somewhere. This will still require a filesystem repair, but at least it'll save wear/tear on the hard drives.
In an ext3/ext4 filesystem, journaling will often correct any errors without needing to fsck; if not, the system will do it on its own at boot. And, if the Magic SysRq is working, using Alt-SysRq-s will force a sync before forcing a boot. I need to do ^Alt-SysRq to get it to work and then, only if the system hasn't locked up.
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