Possible bug in NFSv4 with krb5p security?

Elias Mårtenson lokedhs at gmail.com
Thu Feb 14 17:07:55 UTC 2013

Thank you for your help. I'm currently in the process of analysing what is
happening inside gssd during these operations. I'll get back later with a
summary of my findings.

However, I have found a real bug this time. An honest to FSM kernel crash.
This is how I reproduced it:

  - Kill gssd
  - Attempt to mount a kerberised NFS mount from the Linux machine
  - The mount attempt will hang because gssd isn't running
  - While the mount is hung, start gssd
  - Kernel crash

What should I do about that one?


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