Jiaqing Du wrote: > Hi List, > > I am trying to use kgdb to debug some kernel modules (mainly for > oprofile and kvm). I had some weird problems. For example, break > points do not work and the target kernel hangs on a breakpoint to a > interrupt handler. Then I compiled the kernel with kgdbts. At least > for stable release of 2.6.31.7, it did not pass the testing (with > kgdbts=V2). I'm wondering if every stable release really passes the > kgdbts testing? Or I'm doing something wrong? > >
There was some instability in kgdb with respect to the x86 architecture and single stepping on a multi-cpu system. These fixes were merged to the 2.6.33 development stream last week. Of course in the 2.6.33 kernel the HW breakpoints are presently broken. I had not yet made a set of patches for the 2.6.32 kernel, but the 2.6.33 patch set would certainly apply cleanly. If you are using kvm, I would recommend not using kgdb, and instead using the kvm backend debugger. Jason. ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev _______________________________________________ Kgdb-bugreport mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kgdb-bugreport
