On Mon, 2005-10-10 at 15:22 +0200, Eli Cohen wrote: > David, > IBGD 1.7 does not support kernel 2.6.11 so I assume you have made > changes to IBGD to make it compile. > In the files you sent I can't see a call to ptrace with > PTRACE_PEEKTEXT but I can see a call to PTRACE_PEEKDATA. Note that in > the IBGD stack, registered buffers are not inherited by a child > process when a the parent forks. This is accomplished by setting the > VM_DONTCOPY flag on the vma. It is so done to retain the virtual to > physical translation of a page at the parent by disabling COW on the > pages. So the child may not even have these buffers in its address > space and this could be the reason why ptrace fails. > > Note also that IBGD 1.8 is the latest release and it does support > kernel 2.6.11 so you may consider using it, though the description > above holds also for IBGD 1.8 > > Eli
Hi Eli, Thanks for looking at this. Peektext/peekdata are synonymous, at least in Linux (c.f. the man page for ptrace). Do you happen to have a 1.8 based machine you could try the example on for me (please!)? Do you have any suggestions for a way to work around this. All debuggers need to be able to read memory locations, and even write to them (for breakpoints) - so it's kind of essential! Regards David _______________________________________________ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
