Re: [BUG 2.4] NFS unlocking operation accesses invalid file struct

From: hanasaki
Date: Tue Dec 09 2003 - 20:28:21 EST


could this be related to the problem I had?

debian sarge nfs client on 2.4.23
debian sarge nfs server on 2.6test11 - rpc number erros and bad locks

Akinobu Mita wrote:
Hello Trond,

I apologize for the delay in responding.

On Friday 28 November 2003 01:23, Trond Myklebust wrote:

So then the correct thing to do is indeed to wrap the call to
locks_unlock_delete() with an fget()/fput() pair, and then to remove
the test for fl_pid in locks_same_owner().

We then need to fix lockd so that it generates correct fl_owners for
its locks...

Let me see if I can get that right.



I looked at your patch carefully
(http://www.fys.uio.no/~trondmy/src/Linux-2.4.x/2.4.23-rc1/linux-2.4.23-01-posix_race.dif)
and I think it would fix the problem completely.

Thanks,

--
Akinobu Mita

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