On 09/30, Oleg Nesterov wrote: > > Right now $G doesn't change FPU registers.
It turns out, $G can't even set the REGSET_GENERAL reg correctly. I noticed this only because the tracee sometimes dies during the single-stepping inside the dynamic linker. Indeed, $G passes the wrong fs_index==0 to genregs_set(). > Next: watchpoints. While trying to understand what does this mean, I hit another bug in ugdb. A multithreaded tracee can "hang" if gdb simulates watchpoints with single-steps + mem-fetch/compare. Still can't understand why this happens, this should be resolved. This never happens if the tracee is single-threaded. Oleg.
