[Linux-cachefs] "CacheFiles: Assertion failed" kernel crashes

[Milosz Tanski]

On Tue, May 12, 2015 at 10:08 AM, Vitaly <vitaly at karasik.org> wrote:
> My server  crashes about once per week because cachefiles with "CacheFiles:
> Assertion failed" .
> It's Ubuntu 14.04 with "CacheFiles: Assertion failed"  kernel.
>
> Is there any fix or  workaround  for avoid these crashes?
>
> TIA,
> Vitaly

Vitaly,

I believe there's been a lot of fixes for fscache since the kernel in
14.04 made by David and to some extent my self.
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/?qt=grep&q=FS-Cache
I believe David also has additional fixes that are queued up for NFS
with fscache. If it's possible try using the vivid kernels on your
machine.

Can you please provide more details about the assertion? Like the log
lines before it / any kernel oops. What filesystem you're backing with
fscache. Without this information it's hard for us to help you out.

Best,
- Milosz

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Milosz Tanski
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