Comment 42 for bug 959352

It's still happening on up to date quantal:

root@lantea:~# cat /proc/version
Linux version 3.5.0-3-generic (buildd@akateko) (gcc version 4.7.1 (Ubuntu/Linaro 4.7.1-2ubuntu1) ) #3-Ubuntu SMP Mon Jul 2 16:51:39 UTC 2012
root@lantea:~# dpkg -l | grep linux-image-3.5
ii linux-image-3.5.0-2-generic 3.5.0-2.2 Linux kernel image for version 3.5.0 on 32 bit x86 SMP
ii linux-image-3.5.0-3-generic 3.5.0-3.3 Linux kernel image for version 3.5.0 on 32 bit x86 SMP
root@lantea:~# lxc-start-ephemeral -o p1 -u ubuntu -- cat /proc/self/maps
Setting up ephemeral container...
Starting up the container...
Warning: Permanently added '10.0.3.112' (ECDSA) to the list of known hosts.
ubuntu@10.0.3.112's password:
08048000-08053000 r-xp 00000000 08:01 415243 /rootfs/bin/cat
08053000-08054000 r--p 0000a000 08:01 415243 /rootfs/bin/cat
08054000-08055000 rw-p 0000b000 08:01 415243 /rootfs/bin/cat
09d5a000-09d7b000 rw-p 00000000 00:00 0 [heap]
b7584000-b7585000 rw-p 00000000 00:00 0
b7585000-b7724000 r-xp 00000000 08:01 669268 /rootfs/lib/i386-linux-gnu/libc-2.15.so
b7724000-b7726000 r--p 0019f000 08:01 669268 /rootfs/lib/i386-linux-gnu/libc-2.15.so
b7726000-b7727000 rw-p 001a1000 08:01 669268 /rootfs/lib/i386-linux-gnu/libc-2.15.so
b7727000-b772a000 rw-p 00000000 00:00 0
b772d000-b772f000 rw-p 00000000 00:00 0
b772f000-b7730000 r-xp 00000000 00:00 0 [vdso]
b7730000-b7750000 r-xp 00000000 08:01 669259 /rootfs/lib/i386-linux-gnu/ld-2.15.so
b7750000-b7751000 r--p 0001f000 08:01 669259 /rootfs/lib/i386-linux-gnu/ld-2.15.so
b7751000-b7752000 rw-p 00020000 08:01 669259 /rootfs/lib/i386-linux-gnu/ld-2.15.so
bfdbe000-bfddf000 rw-p 00000000 00:00 0 [stack]
Stopping lxc
root@lantea:~#