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Linux: Killing Tasks On Frozen NFS Mounts

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"I've long hated the non-killability of tasks accessing a dead NFS server," Matthew Wilcox said along with a prototype patch to fix the issue based on a 2002 posting by Linus Torvalds. Matthew added, "I've only added one real user of the killable concept to this patch -- try_lock_page(). However, this is enough for 'cat */*/*' to be killable with a ^C when I unplug the ethernet cord between it and the nfs server."

Linus responded favorably to the patch, "hey, I obviously approve. And the patch looks simple."

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