On 10/04/2013 07:14 PM, Andi Kleen wrote: > On Fri, Oct 04, 2013 at 04:00:12PM +0530, Janani Venkataraman wrote: >> Hi all, >> >> The following series implements an infrastructure for capturing the core of >> an >> application without disrupting its process. > > The problem is that gcore et.al. have to stop the process briefly > to attach and then use the pid mmap ptrace interfaces, right? > Correct.
> Couldn't they just use the new process_vm_readv() syscalls instead? > AFAIK those do not require ptrace. > We need the register set and hence would need a ptrace. > Then this could be all done in user space. > > Or are there some specific races with this approach? > Cheers Suzuki -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/