lkml.org 
[lkml]   [2010]   [Sep]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [stable] [tip:x86/urgent] x86: Add memory modify constraints to xchg() and cmpxchg()
    On 09/09/2010 12:53 PM, Tomáš Janoušek wrote:
    > 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.
    >

    Could you give us your .config and also what version of gcc and binutils
    is on your system?

    -hpa
    --
    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/

    \
     
     \ /
      Last update: 2010-09-09 23:05    [W:4.459 / U:0.480 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site