On Thu, May 10, 2007 at 03:35:56PM +0200, Joerg Roedel wrote: > On Thu, May 10, 2007 at 03:01:44PM +0200, Andi Kleen wrote: > > On Wed, May 09, 2007 at 12:56:16PM -0700, Pete Zaitcev wrote: > > > Hi, Andi: > > > > > > The attached patch (actually, git show output) makes my Dell 1501 to hang > > > on boot. Sorry, I have no clue why... The culprit is found with git > > > bisect. > > > But yes, it's an AMD MK-36. I use an x86_64 kernel. It is 100% > > > reproducible. > > > > MK-36? Does it have SVM? > > > > Anyways we previously had issues with this being miscompiled, but > > I thought the latest patch should have been ok. What compiler do you use? > > > > Can you send me a disassembly listing of arch/x86_64/kernel/time.o? > > I debugged this problem a bit and my compiler[1]interprets the =A > constraint as %rax instead of %edx:%eax on x86_64 which causes the > problem. The appended patch provides a workaround for this and fixed the > hang on my machine.
Hmm yes now I can reproduce it too. I didn't see any hangs so i suppose my (and that of most -mm tester's) compiled binary always happened to have a suitable value in edx Thanks for the patch. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
