linux-kernel - Re: linux-next: Tree for July 22 (uml)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20110722131530.7c8949a3.rdunlap@xenotime.net>
Date:	Fri, 22 Jul 2011 13:15:30 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Richard Weinberger <richard@....at>
Cc:	JBeulich@...ell.com, mingo@...e.hu, akpm@...ux-foundation.org,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	LKML <linux-kernel@...r.kernel.org>,
	user-mode-linux-devel@...ts.sourceforge.net
Subject: Re: linux-next: Tree for July 22 (uml)

On Fri, 22 Jul 2011 20:55:34 +0200 Richard Weinberger wrote:

> Am Freitag 22 Juli 2011, 17:53:46 schrieben Sie:
> > On Fri, 22 Jul 2011 16:42:37 +1000 Stephen Rothwell wrote:
> > > Hi all,
> > 
> > uml build on i386 fails with:
> > 
> > arch/um/sys-i386/built-in.o: In function `call_rwsem_down_read_failed':
> > linux-next-20110722/arch/um/sys-i386/../../x86/lib/rwsem.S:93: undefined
> > reference to `rwsem_down_read_failed' arch/um/sys-i386/built-in.o: In
> > function `call_rwsem_down_write_failed':
> > linux-next-20110722/arch/um/sys-i386/../../x86/lib/rwsem.S:105: undefined
> > reference to `rwsem_down_write_failed' arch/um/sys-i386/built-in.o: In
> > function `call_rwsem_wake':
> > linux-next-20110722/arch/um/sys-i386/../../x86/lib/rwsem.S:118: undefined
> > reference to `rwsem_wake' arch/um/sys-i386/built-in.o: In function
> > `call_rwsem_downgrade_wake':
> > linux-next-20110722/arch/um/sys-i386/../../x86/lib/rwsem.S:130: undefined
> > reference to `rwsem_downgrade_wake'
> > 
> 
> Jan,
> 
> "x86: Unify rwsem assembly implementation" broke the UML build on i386.
> Please compile test you changes or CC me when you are touch something in arch/um/.
> 
> make ARCH=um SUBARCH=i386
> and
> make ARCH=um SUBARCH=x86_64
> 
> does not hurt. :-)

Ack.

> Thanks,
> //richard
> 
> ---
> 
> From b9ec24beb55276d74fdf4f9f9607c69fc8662b72 Mon Sep 17 00:00:00 2001
> From: Richard Weinberger <richard@....at>
> Date: Fri, 22 Jul 2011 20:46:32 +0200
> Subject: [PATCH] um: Make rwsem.S depend on CONFIG_RWSEM_XCHGADD_ALGORITHM
> 
> rwsem.S can only be used with CONFIG_RWSEM_XCHGADD_ALGORITHM.
> This unbreaks the UML build on i386.
> 
> Signed-off-by: Richard Weinberger <richard@....at>
> Reported-by: Randy Dunlap <rdunlap@...otime.net>

Acked-by: Randy Dunlap <rdunlap@...otime.net>

Thanks.

> ---
>  arch/um/sys-i386/Makefile |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile
> index 15587ed..87b659d 100644
> --- a/arch/um/sys-i386/Makefile
> +++ b/arch/um/sys-i386/Makefile
> @@ -8,7 +8,8 @@ obj-y = bug.o bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \
>  
>  obj-$(CONFIG_BINFMT_ELF) += elfcore.o
>  
> -subarch-obj-y = lib/rwsem.o lib/string_32.o
> +subarch-obj-y = lib/string_32.o
> +subarch-obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += lib/rwsem.o
>  subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem_32.o
>  subarch-obj-$(CONFIG_MODULES) += kernel/module.o
>  
> -- 


---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/