Re: Tests Failures on PPC64

2009-12-11 Thread Oleg Nesterov
On 12/11, K.Prasad wrote: On Thu, Dec 10, 2009 at 08:24:36PM +0100, Oleg Nesterov wrote: Oh well. I spent this day grepping arch/powerpc to understand how PTRACE_SET_DEBUGREG works and what is the problem. But I am afraid this time I need a help from someone who understands the hardware

Re: Tests Failures on PPC64

2009-12-11 Thread K.Prasad
On Fri, Dec 11, 2009 at 04:59:44PM +0100, Oleg Nesterov wrote: On 12/11, K.Prasad wrote: Watchpoints (using DABR) through GDB can fail for many reasonsthey must ideally be set after the program has started execution - to enable GDB know the size of the variable...else they would resort

Re: powerpc: PPC970FX dabr bug? (Was: Tests Failures on PPC64)

2009-12-11 Thread Oleg Nesterov
On 12/11, Oleg Nesterov wrote: For those who didn't read the whole thread, the test-case: http://sources.redhat.com/cgi-bin/cvsweb.cgi/~checkout~/tests/ptrace-tests/tests/watchpoint.c?cvsroot=systemtap or you can look at