On Sun, 2010-12-19 at 14:27 +0100, Jörg Sommer wrote: > Hi Steven, > > Steven Rostedt hat am Mon 27. Sep, 21:58 (-0400) geschrieben: > > On Mon, 2010-09-27 at 14:50 +0200, Jörg Sommer wrote: > > > Hello Steven, > > > > > > Steven Rostedt hat am Wed 22. Sep, 15:44 (-0400) geschrieben: > > > > Sorry for the late reply, but I was on vacation when you sent this, and > > > > I missed it while going through email. > > > > > > > > Do you still have this issue? > > > > > > No. I've rebuild my kernel without TRACE_IRQFLAGS and the problem > > > vanished, as expected. The problem is, that in some cases the stack is > > > only two frames deep, which causes the macro CALLER_ADDR1 makes an > > > invalid access. Someone told me, there a workaround for the problem on > > > i386, too. > > > > > > % sed -n 2p arch/x86/lib/thunk_32.S > > > * Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash) > > > > Yes, I remember that problem. When I get back from Tokyo, I'll tried to > > remember to fix it. > > Did you've fixed this problem? The bug report is still marked as open. > https://bugzilla.kernel.org/show_bug.cgi?id=16573 >
Ah, this email got lost in the hundreds I had when I got back from Tokyo, sorry about that again :-( Anyway, it looks like this only affects 32 bit PPC as I can't reproduce it with my 64 bit one. And also, unfortunately, my 32bit ppc got taken from me by my kids, so I can't test it on that either. I'll look to see if I can write up a patch. Perhaps you could test it for me. Thanks, -- Steve _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
