[gentoo-embedded] locales / sandbox violations

[Martin Gysel]

Hi

I installed a dev chroot on 2 different systems each, both x64, one
gentoo, one ubuntu as host. in both chroots I created a x-compiler using
crossdev. in the first one I downloaded a prebuilt armv5tel stage and
rebuilt it so it uses my USE flags using the x-compiler and qemu
(depending on pkg). everything went fine so far. in the second chroot I
used the binpkg from the first one to set up the arm sysroot/root. now
if I chroot into the sysroot on the second using qemu I get some access
violations from the sandbox:
ACCESS DENIED  open_wr:      /dev/null
/usr/lib/portage/bin/ebuild.sh: line 1558: /dev/null: Permission denied
<snip>
--------------------------- ACCESS VIOLATION SUMMARY
---------------------------
LOG FILE "/var/log/sandbox/sandbox-10088.log"

VERSION 1.0
FORMAT: F - Function called
FORMAT: S - Access Status
FORMAT: P - Path as passed to function
FORMAT: A - Absolute Path (not canonical)
FORMAT: R - Canonical Path
FORMAT: C - Command Line

F: open_wr
S: deny
P: /dev/null
A: /dev/null
R: /dev/null
C: /qemu-wrapper -cpu arm926 /bin/bash /usr/lib/portage/bin/ebuild.sh unpack

after some googling I found a forum thread saying it's a locale issue.
so I tried to play with the locale settings. now depending on the locale
it stop at different stages during emerge. switching of the sandbox also
works... (which I sometimes need to do anyway as the there's a
sandbox/qemu 'malloc' issue)
has someone experienced a similar behavior or knows a solution for this?
does it help if I try to rebuild everything with my 'new' locale
settings? can it be a problem to have not set the same locales in the
'sysroot/qemu chroot' than for the x-compiler?

btw, the glibc natively built using qemu dosen't work but the x-compiled
works fine...

thanks
martin