linux-kernel - Re: [BUILD BUG][3.16-rc3] Error: too many copied sections (max = 13)

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Message-Id: <20140702142836.084d1ad63b049d53a2f51218@linux-foundation.org>
Date:	Wed, 2 Jul 2014 14:28:36 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andy Lutomirski <luto@...capital.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [BUILD BUG][3.16-rc3] Error: too many copied sections (max =
 13)

On Tue, 1 Jul 2014 00:09:13 -0400 Steven Rostedt <rostedt@...dmis.org> wrote:

> Testing the latest kernel (3.16-rc3) I hit this build bug:
> 
>   VDSO2C  arch/x86/vdso/vdso-image-64.c
> Error: too many copied sections (max = 13)
> /arch/x86/vdso/Makefile:61: recipe for target 'arch/x86/vdso/vdso-image-64.c' failed
> make[3]: *** [arch/x86/vdso/vdso-image-64.c] Error 1
> /scripts/Makefile.build:404: recipe for target 'arch/x86/vdso' failed
> make[2]: *** [arch/x86/vdso] Error 2
> 
> I bisected it down to this commit:
> 
> commit 0e3727a8839c988a3c56170bc8da76d55a16acad
> Author: Andy Lutomirski <luto@...capital.net>
> Date:   Wed Jun 18 15:59:49 2014 -0700
> 
>     x86/vdso: Remove some redundant in-memory section headers
> 
> When I revert this commit, it compiles fine.

When I revert that I get

Error: cannot handle memsz != filesz
make[2]: *** [arch/x86/vdso/vdso-image-64.c] Error 1
make[1]: *** [arch/x86/vdso] Error 2
make[1]: *** Waiting for unfinished jobs....
In file included from include/linux/poll.h:11,
                 from include/linux/ring_buffer.h:7,
                 from include/linux/ftrace_event.h:5,
                 from include/trace/syscall.h:6,
                 from include/linux/syscalls.h:80,
                 from kernel/capability.c:17:

Productivity decline...
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