bin/97768: NFS rpc.lockd will die automatically
Gea-Suan Lin
gslin at csie.nctu.edu.tw
Thu May 25 17:00:53 UTC 2006
The following reply was made to PR bin/97768; it has been noted by GNATS.
From: Gea-Suan Lin <gslin at csie.nctu.edu.tw>
To: Craig Rodrigues <rodrigc at crodrigues.org>
Cc: Gea-Suan Lin <gslin at csie.nctu.edu.tw>, bug-followup at freebsd.org
Subject: Re: bin/97768: NFS rpc.lockd will die automatically
Date: Fri, 26 May 2006 00:58:16 +0800
Hi,
After this patch, they look good now.
Is this some kind of race condition ? I mean, between kevent() returning
"ok, you can write" and rpc.lockd calling write(), the connection fd=8
disappeared, then write() cause SIGPIPE.
On Wed, May 24, 2006 at 12:35:43AM -0400, Craig Rodrigues wrote:
> On Wed, May 24, 2006 at 12:19:48PM +0800, Gea-Suan Lin wrote:
> > >Description:
> > - rpc.lockd (uid = daemon) will die automatically on FreeBSD
> > 6.0-RELEASE-p7, this is ktrace/kdump log:
> >
> > 58205 rpc.lockd CALL sendto(0x7,0xbfbfd940,0x48,0,0,0)
> > 58205 rpc.lockd GIO fd 7 wrote 72 bytes
> > "<27>May 24 03:02:10 rpc.lockd: Unable to return result to 140.113.209.21"
> > 58205 rpc.lockd RET sendto 72/0x48
> > 58205 rpc.lockd CALL write(0x8,0xbfbfe680,0x20)
> > 58205 rpc.lockd RET write -1 errno 32 Broken pipe
> > 58205 rpc.lockd PSIG SIGPIPE SIG_DFL
>
>
> Does this patch to rpc.lockd help?
>
> ===================================================================
> RCS file: /home/ncvs/src/usr.sbin/rpc.lockd/kern.c,v
> retrieving revision 1.17
> diff -u -u -r1.17 kern.c
> --- kern.c 17 Nov 2005 12:19:19 -0000 1.17
> +++ kern.c 24 May 2006 04:25:05 -0000
> @@ -151,6 +151,7 @@
>
> signal(SIGHUP, (sig_t)client_cleanup);
> signal(SIGTERM, (sig_t)client_cleanup);
> + signal(SIGPIPE, SIG_IGN);
>
> /* Setup. */
> (void)time(&owner.tod);
--
* Gea-Suan Lin (public key: Using https://keyserver.pgp.com/ to search)
* If you cannot convince them, confuse them. -- Harry S Truman
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