Re: problems with v3 (Was: gdbstub initial code, v3)

2010-08-13 Thread Roland McGrath
I seem to understand the problem(s). I am a bit surprized. Basically I have the questions about almost every utrace_ function. I'll try to recheck and summarize my concerns tomorrow with a fresh head, I hope I missed something. Ok. That stuff about pure kernel implementation issues doesn't

problems with v3 (Was: gdbstub initial code, v3)

2010-08-12 Thread Oleg Nesterov
On 08/11, Tom Tromey wrote: Oleg == Oleg Nesterov o...@redhat.com writes: Oleg So, the patch below fixes the problem, and gdb + /proc/ugdb seems Oleg to work. Oleg Indeed, gdb sees that this fd is not pipe/tcp and uses the hardwire Oleg serial_ops, but hardwire_readchar() doesn't play