linux-kernel - Re: dmsetup fails on latest kernel

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Message-ID: <CALLzPKYrqD+FdHB0mLqR=gB6dptKGe2ouMO8i4Kj1R7U4Ev8Ow@mail.gmail.com>
Date:	Fri, 20 Jan 2012 14:52:56 +0200
From:	"Kasatkin, Dmitry" <dmitry.kasatkin@...el.com>
To:	"H. Peter Anvin" <hpa@...ux.intel.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	device-mapper development <dm-devel@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: dmsetup fails on latest kernel

On Thu, Jan 19, 2012 at 9:58 PM, H. Peter Anvin <hpa@...ux.intel.com> wrote:
> On 01/19/2012 11:05 AM, Linus Torvalds wrote:
>>>
>>>
>>> Hi,
>>>
>>> I have bisected the problem...
>>>
>>> It is introduced by this commit:
>>>
>>> 303395ac3bf3e2cb488435537d416bc840438fcb is the first bad commit
>>> commit 303395ac3bf3e2cb488435537d416bc840438fcb
>>> Author: H. Peter Anvin<hpa@...ux.intel.com>
>>> Date:   Fri Nov 11 16:07:41 2011 -0800
>>>
>>>    x86: Generate system call tables and unistd_*.h from tables
>>
>>
>> Interesting. I just munged the old pre-merge
>>
>>   arch/x86/kernel/syscall_table_32.S
>>
>> and the new
>>
>>   arch/x86/syscalls/syscall_32.tbl
>>
>> with some trivial shell scripting, and they are definitely identical.
>>
>> So the tables look like they match 1:1.
>>
>> The compat tables match too, except the new list contains the entry
>> for bdflush (134), but that's a legacy thing that doesn't matter.
>>
>> I wonder what else could be going on. Wrong number of system calls
>> check? Peter, any ideas?
>>
>
> Not off the top of my head.  I will try to reproduce this and see what the
> problem is.  Dmitry, what version of binutils and gcc are you using?  It
> could be that there is a toolchain problem.
>

gcc (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1
binutils 2.21.53.20110810-0ubuntu5.1


>        -hpa
>
>
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