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Is it expected to unfreeze processes that are in uninterruptible sleep because of filesystem issue (NFS, FUSE, bug)?

If I press Sysrq+J on my Linux, it halts the system and prints "Emergency Thaw on sda" in a loop endlessly, not allowing any other SysRqs? Only hard reboot helps then.

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Probably it's a kernel bug, because I've the same problem here, after SysRq+J it started to report the same error in kern.log: "kernel: [160192.060834] Emergency Thaw on sda4" endless around 80000 times per second! After 47,5mln of records and 4,5GB of log within 12 minutes, my machine just DIED! –  kenorb Sep 19 '12 at 9:58
Is there already a bug submitted or I should file one? –  Vi. Sep 19 '12 at 17:30
I found only this: bugzilla.kernel.org/show_bug.cgi?id=12781, but I've just created a new one here: bugzilla.kernel.org/show_bug.cgi?id=47741 –  kenorb Sep 20 '12 at 7:56

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up vote 0 down vote accepted

This is a bug in kernel: https://bugzilla.kernel.org/show_bug.cgi?id=47741

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