From: "H. Peter Anvin" <hpa@zytor.com>
To: Andrew Lutomirski <luto@mit.edu>
Cc: Arnaud Lacombe <lacombar@gmail.com>, Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [GIT PULL] x86/vdso changes for v3.1
Date: Thu, 25 Aug 2011 13:00:30 -0700 [thread overview]
Message-ID: <4E56A9DE.7040909@zytor.com> (raw)
In-Reply-To: <CAObL_7HLpji6xDcBAmwUXBQuahLLVzQXAfYz_gXufUqj_cDzeQ@mail.gmail.com>
On 08/25/2011 12:55 PM, Andrew Lutomirski wrote:
> On Thu, Aug 25, 2011 at 3:51 PM, H. Peter Anvin <hpa@zytor.com> wrote:
>> On 08/25/2011 12:47 PM, Arnaud Lacombe wrote:
>>>
>>> CPU: Intel QEMU Virtual CPU version 0.14.50 stepping 03
>>> About to apply_alternatives
>>> start=c13bee88 a=0 instr_offset=-3922530 instr=cpu_idle+0x26/0x60
>>> repl_offset=2336 repl=__alt_instructions_end+0x0/0x29f instrlen=5
>>> repllen=3
>>> done
>>
>> Since this is a QEMU setup, could you share enough of the setup to
>> reproduce?
>
> qemu-kvm -net none -kernel arch/x86/boot/bzImage -smp 2 -cpu host
> -nographic -append console=ttyS0
>
> With Arnaud's 'dot-config' on the v3.1-rc3 tag. Triggers instantly.
> It's definitely dependent on the config.
>
> Is there any binutils magic to find out which file a particular
> address in .altinstructions came from? I don't think there are
> meaningful symbols near it.
>
addr2line might be able to tell you.
-hpa
next prev parent reply other threads:[~2011-08-25 20:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-22 15:42 [GIT PULL] x86/vdso changes for v3.1 Ingo Molnar
2011-08-25 5:58 ` Arnaud Lacombe
2011-08-25 6:05 ` Arnaud Lacombe
2011-08-25 11:51 ` Andrew Lutomirski
2011-08-25 14:06 ` Arnaud Lacombe
2011-08-25 19:16 ` Andrew Lutomirski
2011-08-25 19:37 ` Arnaud Lacombe
2011-08-25 19:47 ` Arnaud Lacombe
2011-08-25 19:49 ` Andrew Lutomirski
2011-08-25 19:51 ` Andrew Lutomirski
2011-08-25 19:51 ` H. Peter Anvin
2011-08-25 19:55 ` Andrew Lutomirski
2011-08-25 20:00 ` H. Peter Anvin [this message]
2011-08-25 20:10 ` [PATCH] x86-32: Fix boot with CONFIG_X86_INVD_BUG Andy Lutomirski
2011-08-25 20:21 ` Arnaud Lacombe
2011-08-25 20:28 ` Linus Torvalds
2011-08-25 19:55 ` [GIT PULL] x86/vdso changes for v3.1 Arnaud Lacombe
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