Messages in this thread |  | | | Date | Thu, 9 Sep 2010 21:53:01 +0200 | | From | Tomáš Janoušek <> | | Subject | Re: [stable] [tip:x86/urgent] x86: Add memory modify constraints to xchg() and cmpxchg() |
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Hello,
2.6.32.21 does not boot on my HP Compaq nx7300. I bisected it to this patch:
On Mon, Aug 02, 2010 at 04:59:50PM -0700, Greg KH wrote: > On Mon, Aug 02, 2010 at 04:51:27PM -0700, Jeremy Fitzhardinge wrote: > > On 07/27/2010 10:33 PM, tip-bot for H. Peter Anvin wrote: > > >Commit-ID: 113fc5a6e8c2288619ff7e8187a6f556b7e0d372 > > >Gitweb: http://git.kernel.org/tip/113fc5a6e8c2288619ff7e8187a6f556b7e0d372 > > >Author: H. Peter Anvin<hpa@zytor.com> > > >AuthorDate: Tue, 27 Jul 2010 17:01:49 -0700 > > >Committer: H. Peter Anvin<hpa@zytor.com> > > >CommitDate: Tue, 27 Jul 2010 17:14:02 -0700 > > > > > >x86: Add memory modify constraints to xchg() and cmpxchg() > > > > Here's the 2.6.32 version for stable. > > Thanks, I'll queue it up when it hits Linus's tree.
Here's a video of the crash: http://store.lisk.in/tmp/09092010019.mp4 With boot_delay=30, it sometimes just reboots and sometimes prints the trace. Without it, it always prints the trace. The crash occurs during the initialization of intel-agp (which explains why I can't reproduce it in qemu). More details in the video.
The system boots and works just fine with 2.6.32.21 with the patch reverted. v2.6.36-rc3-185-gd56557a works fine as well, perhaps there were other fixes that didn't get to stable (e.g. 4532b30).
I'm compiling the kernel with the latest gcc in Debian (-dumpversion says 4.4.5, dpkg reports 4:4.4.4-2). Shall I post dmesg/lspci as well?
Since I have an easy workaround and other things to do, I won't spend time trying to backport those other fixes myself, but if you're going to fix this, I will help with testing.
Regards, -- Tomáš Janoušek, a.k.a. Liskni_si, http://work.lisk.in/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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