Re: "Out of Partition" error on XFS still occuring

[Pavel Roskin <proski@gnu.org>]

On Sat, 2008-07-26 at 20:56 -0500, Dan Callahan wrote:
> Hi, I seem to be able to recreate the xfs "out of partition" error
> using Debian's most recent grub-pc release, 1.96+20080724-2.
> 
> This bug is being tracked at
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=436943 , and was
> first reported one year ago. A patch from Niels Böhm last month was
> thought to resolve it, but I'm still seeing the issue.
> 
> A dd copy of the offending filesystem is available at
> http://neoflux.net/tmp/xfs-boot.tar.gz (8.9 MB compressed, 243 MB
> uncompressed, link should remain active through August.)
> 
> Mounted as a loopback device in grub-emu, ls (device) detects that it
> is xfs, but ls (device)/ and ls (device)/grub fail with the out of
> partition error.

Valgrind on x86_64 indicates something interesting:

$ valgrind grub-fstest /home/proski/tmp/xfs/xfs-boot.img ls /                 
==23594== Memcheck, a memory error detector.
==23594== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al.
==23594== Using LibVEX rev 1804, a library for dynamic binary translation.
==23594== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP.
==23594== Using valgrind-3.3.0, a dynamic binary instrumentation framework.
==23594== Copyright (C) 2000-2007, and GNU GPL'd, by Julian Seward et al.
==23594== For more details, rerun with: -v
==23594== 
em.map-2.6.25-2-amd64/    ==23594== Conditional jump or move depends on uninitialised value(s)
==23594==    at 0x415FB9: call_hook.2389 (xfs.c:378)
==23594==    by 0x4167DB: grub_xfs_iterate_dir (xfs.c:469)
==23594==    by 0x41697C: grub_xfs_dir (xfs.c:659)
==23594==    by 0x4083EC: grub_cmd_ls (ls.c:176)
==23594==    by 0x4011C7: execute_command (grub-fstest.c:120)
==23594==    by 0x401452: fstest (grub-fstest.c:305)
==23594==    by 0x4016DF: main (grub-fstest.c:513)

"em.map-2.6.25-2-amd64/" is apparently the ls output.  Yet Linux can
mount the volume, and it shows reasonable names.

-- 
Regards,
Pavel Roskin