i386/106632: gimp destroys files on fat32 upon opening

[Dominic Fandrey]

>Number:         106632
>Category:       i386
>Synopsis:       gimp destroys files on fat32 upon opening
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Dec 12 08:00:18 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Dominic Fandrey
>Release:        6.2-PRERELEASE
>Organization:
private
>Environment:
FreeBSD mobileKamikaze.norad 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Sat Nov 25 12:55:14 CET 2006     root at homeKamikaze.norad:/usr/obj/TPR40-6/i386/usr/src/sys/TPR40-6  i386
>Description:
FreeBSD sometimes destroys .xcf files on fat32 paritions when opening them with the gimp. I entered a bug report, but strace shows that it's a FreeBSD problem, since gimp operates entirely in read only mode.

It is difficult to reproduce, but I've got the strace output and a copy of an affected file (as well as a backup of the unbroken original). All those are fairly large, so to share them I'd need somewhere to upload them.

More information can be found here:
http://bugzilla.gnome.org/show_bug.cgi?id=376687
>How-To-Repeat:
1. I create an .xcf file with the gimp and save it.
2. Afterwards I create a backup of the file.
3. I close it and open it again. Sometimes I get the following message:
 XCF: This file is corrupt!  I could not even salvage any partial image data
from it.
4. I copy the backup over the original.
5. Opening it works.
>Fix:
Don't use Fat32.
>Release-Note:
>Audit-Trail:
>Unformatted: