hello wonderful umlers, here's a wonderfully infrequent but nagging startup failure that usually has a useless (no stack depth, or just corrupt) backtrace... Here's all the user sees: Checking for the skas3 patch in the host...found Checking for /proc/mm...found Enterasys Node Driver v0.1 (4, 15, 0) Kernel panic: Segfault with no mm In idle task - not syncing and then it dumps core - that, this once, had a (possibly informative) backtrace (attached). host is 2.4.20-31 redhat9 + skas - nptl guest is 2.4.26-3um + core_on_panic and other local mods that are *not* in this trace. thank you for any insight. (please, no suggestions to update :-) -- db