NetBSD Problem Report #41259

From tron@zhadum.org.uk  Tue Apr 21 13:10:17 2009
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Message-Id: <20090421131013.249ADF927E@lyssa.zhadum.org.uk>
Date: Tue, 21 Apr 2009 14:10:13 +0100 (BST)
From: tron@zhadum.org.uk
Reply-To: tron@zhadum.org.uk
To: gnats-bugs@gnats.NetBSD.org
Subject: amd(8) cannot handle high demand
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>Number:         41259
>Category:       bin
>Synopsis:       amd(8) cannot handle high demand
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Apr 21 13:15:00 +0000 2009
>Last-Modified:  Thu Apr 29 17:40:02 +0000 2010
>Originator:     tron@zhadum.org.uk
>Release:        NetBSD 5.0_RC4 2009-04-18 sources
>Organization:
Matthias Scheler                                  http://zhadum.org.uk/
>Environment:
System: NetBSD lyssa.zhadum.org.uk 5.0_RC4 NetBSD 5.0_RC4 (GENERIC) #0: Sat Apr 18 10:53:55 BST 2009 tron@excalibur.zhadum.org.uk:/Volumes/Sources/obj/sys/arch/i386/compile/GENERIC i386
Architecture: i386
Machine: i386
>Description:
I tried to build NetBSD sources from the "netbsd-5" branch on an
NFS volume that was mounted via amd(8) today. The machine has four
virtual CPUs and I started "build.sh" with "-j 8". The build failed
several times with random "device busy" or "file not found" messages.

I mounted the source statically with "mount -t nfs ..." afterwards,
retried the build and it finished without problems.

Here is my "/etc/amd.conf" in case it matters:

[global]
auto_attrcache  = 1
search_path     = /etc/amd
unmount_on_exit = yes

[ /home ]
map_name =	amd.home
map_type =	nis

[ /share ]
map_name =	amd.share
map_type =	nis

[ /scratch ]
map_name =	amd.scratch
map_type =	nis

[ /volumes ]
map_name =	volumes
map_type =	file

I've only added "auto_attrcache" and "unmount_on_exit" today to fix
the build problem. But it didnt' help.

>How-To-Repeat:
cd /auto/mounted/path/src
./build.sh -j 8 ...

>Fix:
None provide.

>Audit-Trail:
From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
To: gnats-bugs@NetBSD.org
Cc: gnats-admin@NetBSD.org, tsutsui@ceres.dti.ne.jp
Subject: Re: bin/41259: amd(8) cannot handle high demand
Date: Tue, 21 Apr 2009 22:21:14 +0900

 > >Synopsis:       amd(8) cannot handle high demand

 Does it occur on nfs_proto=udp?

 ---
 Izumi Tsutsui

From: Matthias Scheler <tron@zhadum.org.uk>
To: gnats-bugs@NetBSD.org
Cc: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Subject: Re: bin/41259: amd(8) cannot handle high demand
Date: Tue, 21 Apr 2009 15:52:04 +0100

 On Tue, Apr 21, 2009 at 01:25:02PM +0000, Izumi Tsutsui wrote:
 > The following reply was made to PR bin/41259; it has been noted by GNATS.
 > 
 > From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
 > To: gnats-bugs@NetBSD.org
 > Cc: gnats-admin@NetBSD.org, tsutsui@ceres.dti.ne.jp
 > Subject: Re: bin/41259: amd(8) cannot handle high demand
 > Date: Tue, 21 Apr 2009 22:21:14 +0900
 > 
 >  > >Synopsis:       amd(8) cannot handle high demand
 >  
 >  Does it occur on nfs_proto=udp?

 Yes, it does:

 #    create  ldapexop/ldapexop.d
 CC=/src/tools/bin/i386--netbsdelf-gcc /src/tools/bin/nbmkdep -f ldapexop.d --      -I/amd/colwyn/src/NetBSD-5.0/src/external/bsd/openldap/include -I/amd/colwyn/src/NetBSD-5.0/src/external/bsd/openldap/dist/include -DHAVE_TLS -nostdinc -isystem /export/scratch/tron/obj/destdir.i386/usr/include    /amd/colwyn/src/NetBSD-5.0/src/external/bsd/openldap/dist/clients/tools/ldapexop.c
 i386--netbsdelf-gcc: /amd/colwyn/src/NetBSD-5.0/src/external/bsd/openldap/dist/clients/tools/ldapexop.c: Device busy

 tron@lyssa:~>grep nfs /etc/amd.conf
 nfs_proto       = udp

 	Kind regards

 -- 
 Matthias Scheler                                  http://zhadum.org.uk/

From: "Aaron J. Grier" <agrier@poofygoof.com>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: bin/41259: amd(8) cannot handle high demand
Date: Thu, 29 Apr 2010 10:38:20 -0700

 I've been seeing this on uniprocessor 2.4GHz /i386 when compiling
 NetBSD-5 from NFS mounted sources.  failures are not consistent -- three
 previous builds completed successfully.

 host is running 5.0_STABLE built in mid-February 2010.

 -- 
   Aaron J. Grier | "Not your ordinary poofy goof." | agrier@poofygoof.com

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