linux-kernel - Re: [tip:x86/urgent] x86/vdso: Discard the __bug

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Message-ID: <CALCETrXohybf=Lk70j=hVG1zaAQ-mw8CVo6P59xjM2qsc-p+Gg@mail.gmail.com>
Date:	Tue, 24 Jun 2014 11:19:22 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	"linux-tip-commits@...r.kernel.org" 
	<linux-tip-commits@...r.kernel.org>
Subject: Re: [tip:x86/urgent] x86/vdso: Discard the __bug_table section

On Sun, Jun 22, 2014 at 9:59 AM, Andy Lutomirski <luto@...capital.net> wrote:
> On Sun, Jun 22, 2014 at 1:47 AM, Ingo Molnar <mingo@...nel.org> wrote:
>>
>> * tip-bot for Andy Lutomirski <tipbot@...or.com> wrote:
>>
>>> Commit-ID:  5f56e7167e6d438324fcba87018255d81e201383
>>> Gitweb:     http://git.kernel.org/tip/5f56e7167e6d438324fcba87018255d81e201383
>>> Author:     Andy Lutomirski <luto@...capital.net>
>>> AuthorDate: Wed, 18 Jun 2014 15:59:46 -0700
>>> Committer:  H. Peter Anvin <hpa@...ux.intel.com>
>>> CommitDate: Thu, 19 Jun 2014 15:44:51 -0700
>>>
>>> x86/vdso: Discard the __bug_table section
>>>
>>> It serves no purpose in user code.
>>>
>>> Signed-off-by: Andy Lutomirski <luto@...capital.net>
>>> Link: http://lkml.kernel.org/r/2a5bebff42defd8a5e81d96f7dc00f21143c80e8.1403129369.git.luto@amacapital.net
>>> Signed-off-by: H. Peter Anvin <hpa@...ux.intel.com>
>>> ---
>>>  arch/x86/vdso/vdso-layout.lds.S | 1 +
>>>  1 file changed, 1 insertion(+)
>>
>> One of the recent x86/urgent vdso commits causes this build failure:
>>
>>  Error: too many copied sections (max = 13)
>
> I can't reproduce this with your config, which suggestes a binutils
> issue, which is annoying.  Can you tell me what version of ld you're
> using and send me the output of:
>
> for i in arch/x86/vdso/*.so.dbg; do echo $i; eu-readelf -S $i; done

Ping!

The current state of this is obviously not so good, but I don't know
how to proceed.

--Andy
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