linux-kernel - Re: linux-next: Tree for Jun 21

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Date:	Tue, 21 Jun 2016 09:58:28 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
	Chris Metcalf <cmetcalf@...lanox.com>,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: linux-next: Tree for Jun 21

On Tue, Jun 21, 2016 at 08:01:36AM +0100, Sudip Mukherjee wrote:

> tilepro defconfig is failing while doing "make prepare" and bisect shows the
> first bad commit as:
> 
> 1af5de9af138 ("locking/atomic, arch/tile: Implement
> atomic{,64}_fetch_{add,sub,and,or,xor}()")
> 
> You can find today's build log at:
> https://travis-ci.org/sudipm-mukherjee/parport/jobs/139112570
> 
> Please do let me know if i can help in any way to debug/solve this.

I cannot reproduce, I tried both tip/master (which carries the patch you
fingered) and next/master.

My tilepro build ends in a vmlinux with just a single warning.


root@...-ep:/usr/src/linux-2.6# rm -rf tile-defconfig/ tile-tilepro_defconfig/
root@...-ep:/usr/src/linux-2.6# ./build-arch-defconfig.sh tilepro
make[1]: Entering directory `/usr/src/linux-2.6/tile-tilepro_defconfig'
  HOSTCC  scripts/basic/fixdep
  GEN     ./Makefile
  HOSTCC  scripts/kconfig/conf.o
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
#
# configuration written to .config
#
make[1]: Leaving directory `/usr/src/linux-2.6/tile-tilepro_defconfig'
../arch/tile/lib/cacheflush.c: In function 'finv_buffer_remote':
../arch/tile/lib/cacheflush.c:146:0: warning: ignoring #pragma unroll  [-Wunknown-pragmas]
 #pragma unroll 8
 
root@...-ep:/usr/src/linux-2.6# ls -la tile-tilepro_defconfig/vmlinux
vmlinux    vmlinux.o