Date: Wed, 17 Mar 2004 09:37:41 -0800 (PST) From: mark wolgemuth <mark@node.to> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/64378: exec of linux binary in pxeboot diskless nfs root system causes panic Message-ID: <200403171737.i2HHbfUf064514@www.freebsd.org> Resent-Message-ID: <200403171740.i2HHeK5U023500@freefall.freebsd.org>
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>Number: 64378
>Category: kern
>Synopsis: exec of linux binary in pxeboot diskless nfs root system causes panic
>Confidential: no
>Severity: critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Mar 17 09:40:20 PST 2004
>Closed-Date:
>Last-Modified:
>Originator: mark wolgemuth
>Release: 5.2.1-RELEASE-p1
>Organization:
employease, inc.
>Environment:
FreeBSD nonuts 5.2.1-RELEASE-p1 FreeBSD 5.2.1-RELEASE-p1 #9: Tue Mar 16 12:45:00 EST 2004 root@demon.tek.eease.com:/usr/src/sys/i386/compile/NETBOOT i386
>Description:
Kernel is loaded over pxeboot + nfs. Root and usr are mounted over NFS from Netapp.
Modules linux and linprocfs are loaded via loader.conf.
System comes up ok, but execution of a linux binary, eg. "/compat/linux/sbin/ldconfig" causes panic. Instruction ptr is at "Xpage".
I have union mounted /compat/linux under a read/write mounted fs (md in this case) so that /compat/linux/etc/ld.so.cache can be written, to rule out that problem. Since /compat/linux is writeable, so is /compat/linux/var also.
>How-To-Repeat:
Boot a diskless i386 system using pxeboot and root and usr on read-only nfs.
Load linux kernel module. Try to run /compat/linux/ldconfig.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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