From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: wei.liu2@citrix.com
Cc: xen-devel@lists.xen.org
Subject: Re: Linux kernel 3.12 regression, Dom0 fails to boot on Core 2 6400
Date: Fri, 27 Sep 2013 04:36:41 -0700 (PDT) [thread overview]
Message-ID: <66701bb1-112d-4ece-bd41-fcd562cef4df@default> (raw)
----- wei.liu2@citrix.com wrote:
> Hi Konrad
>
> Just notice a regression on 3.12 kernel, Dom0 fails to boot early on
> with following message:
>
> (XEN) traps.c:455:d0 Unhandled invalid opcode fault/trap [#6] on VCPU
> 0 [ec=0000]
> (XEN) domain_crash_sync called from entry.S
>
> (XEN) Domain 0 (vcpu#0) crashed on cpu#0:
The will be fixed in mainline as soon as Linus pulls our tree:
https://lkml.org/lkml/2013/9/25/270
-boris
>
> (XEN) ----[ Xen-4.4-unstable x86_64 debug=y Tainted: C ]----
>
> (XEN) CPU: 0
>
> (XEN) RIP: e033:[<ffffffff81b6a48e>]
>
> (XEN) RFLAGS: 0000000000000292 EM: 1 CONTEXT: pv guest
>
> (XEN) rax: 000000000000006a rbx: ffffffff8148c255 rcx:
> 00000000000000aa
> (XEN) rdx: 0000000000000032 rsi: 0000000000000006 rdi:
> 0000000000000000
> (XEN) rbp: ffffffff82201e38 rsp: ffffffff82201dd8 r8:
> 0000000000000000
> (XEN) r9: 6465746365707865 r10: 000000000000009d r11:
> 6820746120706f20
> (XEN) r12: ffffffff810199e0 r13: ffffffff82309c18 r14:
> ffffffff81c01f04
> (XEN) r15: 0000000000000000 cr0: 0000000080050033 cr4:
> 00000000000026f0
> (XEN) cr3: 000000021e20c000 cr2: 0000000000000000
>
> (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: e02b cs: e033
>
> (XEN) Guest stack trace from rsp=ffffffff82201dd8:
>
> (XEN) 00000000000000aa 6820746120706f20 ffffffff81b6a48e
> 000000010000e030
> (XEN) 0000000000010092 ffffffff82201e18 000000000000e02b
> ffffffff81b6a48e
> (XEN) ffffffff00000000 ffffffff00000000 ffffffff81ffb05d
> ffffffff00000035
> (XEN) ffffffff82201e78 ffffffff810176a4 ffffffe800000000
> 90666666663a3e50
> (XEN) ffffffff82309c10 0000000000000001 ffffffff824b3c20
> ffff88021a138740
> (XEN) ffffffff82201ea8 ffffffff81017889 ffffffff82305a58
> 0000441f0f000000
> (XEN) ffffffff824b3c40 ffffffff82309c10 ffffffff82201ed8
> ffffffff823549f5
> (XEN) 0000000000000065 ffffffffffffffff ffffffff823d0020
> ffffffff823da2e0
> (XEN) ffffffff82201f28 ffffffff82331ca5 ffffffff8233186d
> ffffffff82652000
> (XEN) ffffffff82659038 ffffffff823da2e0 00000000f3dfffff
> 0000000000000000
> (XEN) 0000000000000000 0000000000000000 ffffffff82201f38
> ffffffff823315e0
> (XEN) ffffffff82201ff8 ffffffff82335484 0000000100000000
> 00020800000006f6
> (XEN) 1fc9cbf580002281 0300000100000032 0000000000000005
> 0000000000000020
> (XEN) 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> (XEN) 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> (XEN) 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> (XEN) 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
> (XEN) 0000000000000000 0f00000060c0c748 ccccccccccccc305
> cccccccccccccccc
> (XEN) cccccccccccccccc cccccccccccccccc cccccccccccccccc
> cccccccccccccccc
> (XEN) cccccccccccccccc cccccccccccccccc cccccccccccccccc
> cccccccccccccccc
> (XEN) Domain 0 crashed: rebooting machine in 5 seconds.
>
> Biscetion shows that it's due to the change in jump label.
>
> commit 442e0973e9273ae8832abd70f52efde8b8326178
>
> Merge: 8d7551e fb40d7a
>
> Author: Linus Torvalds <torvalds@linux-foundation.org>
>
> Date: Tue Sep 10 19:43:23 2013 -0700
>
>
>
> Merge branch 'x86/jumplabel' of
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
>
>
> Pull x86 jumplabel changes from Peter Anvin:
>
> "One more x86 tree for this merge window. This tree improves the
>
> handling of jump labels, so that most of the time we don't have
> to do
> a massive initial patching run.
>
>
>
> Furthermore, we will error out of the jump label is not what is
>
> expected, eg if it has been corrupted or tampered with"
>
>
>
> * 'x86/jumplabel' of
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
> x86/jump-label: Show where and what was wrong on errors
>
> x86/jump-label: Add safety checks to jump label conversions
>
> x86/jump-label: Do not bother updating nops if they are correct
>
> x86/jump-label: Use best default nops for inital jump label
> calls
>
> Hardware matters. I can only see the crash on Intel(R) Core(TM)2 6400
> @
> 2.13GHz.
>
> Wei.
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
next reply other threads:[~2013-09-27 11:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-27 11:36 Boris Ostrovsky [this message]
2013-09-27 11:51 ` Linux kernel 3.12 regression, Dom0 fails to boot on Core 2 6400 Wei Liu
-- strict thread matches above, loose matches on Subject: below --
2013-09-27 9:26 Wei Liu
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