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kern/18013: NFS kernel crash

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t...@netilium.org

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Aug 21, 2002, 10:56:25 AM8/21/02
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>Number: 18013
>Category: kern
>Synopsis: NFS kernel crash
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed Aug 21 07:54:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Tobias Nygren
>Release: 1.6_RC1
>Organization:
>Environment:
NetBSD megami 1.6_RC1 NetBSD 1.6_RC1 (GENERIC) #0: Mon Aug 19 06:28:34 UTC 2002 auto...@tgm.daemon.org:/autobuild/i386/OBJ/autobuild/src/sys/arch/i386/com
pile/GENERIC i386
>Description:
I'm running a diskless Linux(2.4.19) client nfs mounted to a
NetBSD server. When applying (heavy) filesystem i/o,
such as makedev, installing packages, kernel compile
the server crashes with this output.

This particular dump is from NetBSD 1.6_BETA5,
but the problems exists in RC1 as well.

uvm_fault(0xcb185468, 0x38643000, 0, 2) -> e
kernel: page fault trap, code=0
Stopped in pid 171 (nfsd) at pool_get+0x199: movl %eax, 0x4(%edx)
db> trace
pool_get(c067fd40,2,0,0,cb3b9af4) at pool_get+0x199
pool_cache_get(c067fd00,2,80000001,d104,cb3b9af4) at pool_cache_get+0x3b
nfs_namei(cb3b9d10,cb3b9b00,6,c0972800,c0b18600) at nfs_namei+0x43
nfsrv_rename(c0b2cc00,c0972800,cb180c94,cb3b9df8,cb3b9f80) at nfsrv_rename+0x9f3
nfssvc_nfsd(cb3b9e50,804b720,cb180c94,c036257f,cb3b9f80) at nfssvc_nfsd+0x504
sys_nfssvc(cb180c94,cb3b9f80,cb3b9f78,c0377494) at sys_nfssvc+0x5e2
syscall_plain(1f,1f,1f,1f,bfbfdcbc) at syscall_plain+0xa7

>How-To-Repeat:
Set up a diskless Linux box, mount the root on
a netbsd server, create some fs i/o for a few
minutes.


>Fix:
none known.
>Release-Note:
>Audit-Trail:
>Unformatted:

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