What is Sysrq+J "Thaw frozen filesystems" and why it fails?

Fresh3 days ago

Mar 15, 20262616 views

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Problem

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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Fix for: What is Sysrq+J "Thaw frozen filesystems" and why it fails?

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

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What is Sysrq+J "Thaw frozen filesystems" and why it fails?

Problem

1 Fix

Fix for: What is Sysrq+J "Thaw frozen filesystems" and why it fails?

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