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Date: Sat, 25 Oct 2003 16:37:49 -0700
From: Alfred Perlstein <bright@mu.org>
To: Robert Watson <rwatson@FreeBSD.org>
Message-ID: <20031025233749.GW99943@elvis.mu.org>
References: <200310251614.h9PGE925019013@repoman.freebsd.org>
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Subject: Re: cvs commit: src/sys/kern kern_sig.c
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This is bad, it's time to add a flag to the vnode to do this
properly instead of relying upon the underlying FS to implement
the locking.

* Robert Watson <rwatson@FreeBSD.org> [031025 09:14] wrote:
> rwatson     2003/10/25 09:14:09 PDT
> 
>   FreeBSD src repository
> 
>   Modified files:
>     sys/kern             kern_sig.c 
>   Log:
>   When generate a core dump, use advisory locking in an advisory way:
>   if we do acquire an advisory lock, great!  We'll release it later.
>   However, if we fail to acquire a lock, we perform the coredump
>   anyway.  This problem became particularly visible with NFS after
>   the introduction of rpc.lockd: if the lock manager isn't running,
>   then locking calls will fail, aborting the core dump (resulting in
>   a zero-byte dump file).
>   
>   Reported by:    Yogeshwar Shenoy <ynshenoy@alumni.cs.ucsb.edu>
>   
>   Revision  Changes    Path
>   1.260     +6 -6      src/sys/kern/kern_sig.c

-- 
- Alfred Perlstein
- Research Engineering Development Inc.
- email: bright@mu.org cell: 408-480-4684