On 07/01, Oleg Nesterov wrote: > > Another attempt. This version tries to decouple utrace and ptrace. > This way it is much simpler to follow the upstream changes, afaics. It turns out, FC15's kernel 2.6.40 has the wrong utrace.patch See https://bugzilla.redhat.com/show_bug.cgi?id=728379 in short: PTRACE_SYEMU (used by uml) is broken. > TODO: > > - The single-stepping updates in ptrace_resume() can race > with utrace_reset()->user_disable_single_step(). > > This was fixed by 20/20, but I noticed that this patch > is buggy right before sending. > > - Perhaps PTRACE_SYSEMU/TIF_SYSCALL_EMU logic was broken, > I need to recheck. Yes, and then I sent the fixes for above, but they were not included. Dave, I am sorry. Looks like I managed to confuse you. I wrongly assumed you will simply pull the "utrace" branch, and thus I did not re-send the full series. I am (re)sending it now. Please let me now if you need the incremental diff against 2.6.40-*.fc15. Or anything else... (just in case, I verified that utrace-patch in rawhide is fine, it matches my utrace-3.1 branch). Oleg. _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel
