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Date:      Wed, 14 Feb 2007 09:08:41 GMT
From:      "Eugene M. Zheganin"<emz@norma.perm.ru>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   ports/109160: samba crashes freebsd when accessing a share residing on a memory disc
Message-ID:  <200702140908.l1E98fM6050087@www.freebsd.org>
Resent-Message-ID: <200702140910.l1E9AA4i005872@freefall.freebsd.org>

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>Number:         109160
>Category:       ports
>Synopsis:       samba crashes freebsd when accessing a share residing on a memory disc
>Confidential:   no
>Severity:       critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Feb 14 09:10:05 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Eugene M. Zheganin
>Release:        6.2-RELEASE
>Organization:
Norma JSC.
>Environment:
FreeBSD elf.hq.norma.perm.ru 6.2-RELEASE FreeBSD 6.2-RELEASE #1: Wed Jan 24 10:56:57 YEKT 2007     emz@ns.hq.norma.perm.ru:/usr/obj/usr/src/sys/ELF  i386
>Description:
I have:

- an udf filesystem on a dvd-image with Office2k7 and Vista tryouts
- this image is attached to a memory-disk
- this memory-disk is redistributed via samba share

When trying to launch setup.exe from MS-Office from such a share on a machine running WinXP sp2 I get:
- first time a message 'Procedure entry point not found [...]' adressing some of the office dlls.
- second time a message, indicating that some of the office files, residing on this disk cannot be found or is inaccessible
- third time a machine panics with message like "panic: vm_fault on non-fault entry, addr: e1738000" (one of two machines reboots after that, one just halts).

This panic is repeatable on two of my servers, each time I do the manipulations described above (yesterday I've done it 4 times and got 4 panics, to ensure I really can repeat it).

This bug is for sure somehow related to the samba bug https://bugzilla.samba.org/show_bug.cgi?id=3683.
>How-To-Repeat:
Get an udf filesystem with Office2K7/Vista (any of em; unfortunately, mine is 4 Gigs), mount it locally and redistribute via samba. Access it from an XP machine. Try to launch setup.exe several times.
>Fix:
None known, but I can supply ssh (plus root privileges to one of my machines, and ability to crash or do any experiments that wont harm the hardware on it) and an rdp access to my installation.
>Release-Note:
>Audit-Trail:
>Unformatted:



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