glibc upstream has closed the bug in their BTS. The issue is not present in glibc 2.4 and later releases. glibc 2.4 and later use a completely different method to generate the .eh_frame section (cfi_* macros in the assembly). We cannot simply take the glibc 2.4 fix and apply it to the 2.3.6 source currently in Debian.
Given the above, I suggest the patch be applied until Debian updates glibc to 2.4 or later. The risk is low. The change only affects debugging info (specifically stack unwinding accross one argument syscalls). The .eh_frame section in question is currently so broken as to be unreadable by at least two tools (readelf and valgrind).
