linux-kernel - Re: linux-next: Tree for Aug 23

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Date:	Sun, 24 Aug 2014 21:57:41 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: linux-next: Tree for Aug 23

On Sat, Aug 23, 2014 at 08:04:22AM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> Changes since 20140822:
> 
> The mfd tree gained a build failure so I used the version from
> next-20140822.
> 
> The usb-gadget tree gained a conflict against the usb-gadget-fixes tree.
> 
> The pwm tree gained a build failure for which I reverted a couple of
> commits.
> 
> The staging tree still had its build failure for which I applied a
> fix patch.
> 
> Non-merge commits (relative to Linus' tree): 1435
>  1372 files changed, 34371 insertions(+), 25442 deletions(-)
> 

Images build from this tree crash in mips, mips64, and sparc64 qemu tests
with memory allocation errors. For mips, bisect points to commit ef31563e950c
(locking,arch,mips: Fold atomic_ops).

# bad: [eeed658b5a92d957aab7bdb7c469a90016420c7d] Add linux-next specific files for 20140823
# good: [7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9] Linux 3.17-rc1
git bisect start 'HEAD' 'v3.17-rc1'
# good: [a364ac83d553cd223cf1b898a738594f866242ac] Merge remote-tracking branch 'input/next'
git bisect good a364ac83d553cd223cf1b898a738594f866242ac
# bad: [6804e0868ce1f5f55a16270de65587e35b80231e] Merge remote-tracking branch 'usb-gadget/next'
git bisect bad 6804e0868ce1f5f55a16270de65587e35b80231e
# bad: [8590e100eca66f5763b4c8a5775e38e4a0c9939d] Merge branch 'x86/xsave'
git bisect bad 8590e100eca66f5763b4c8a5775e38e4a0c9939d
# good: [e71e79457b79a52827039d9d7f253321bfd342bd] perf symbols: Don't demangle parameters and such by default
git bisect good e71e79457b79a52827039d9d7f253321bfd342bd
# bad: [100b1cb29333c8ac37e68025b291e4b273c8ad43] Merge branch 'locking/core'
git bisect bad 100b1cb29333c8ac37e68025b291e4b273c8ad43
# bad: [c6470150dff9aff682063890c9b8eac71b695def] locking,arch,sh: Fold atomic_ops
git bisect bad c6470150dff9aff682063890c9b8eac71b695def
# good: [50f853e38b0b90a5703ab14b70e20eb5a8ccd5de] locking,arch,hexagon: Fold atomic_ops
git bisect good 50f853e38b0b90a5703ab14b70e20eb5a8ccd5de
# good: [d6dfe2509da935a15583cace7cd3837b1e8addef] locking,arch,metag: Fold atomic_ops
git bisect good d6dfe2509da935a15583cace7cd3837b1e8addef
# bad: [e69a0ef76627005e3e83d0e086e6bb1d247bb65b] locking,arch,mn10300: Fold atomic_ops
git bisect bad e69a0ef76627005e3e83d0e086e6bb1d247bb65b
# bad: [ef31563e950c60bb41b97c2b61c32de874f3c949] locking,arch,mips: Fold atomic_ops
git bisect bad ef31563e950c60bb41b97c2b61c32de874f3c949
# first bad commit: [ef31563e950c60bb41b97c2b61c32de874f3c949] locking,arch,mips: Fold atomic_ops

Reverting the first bad commit fixes the problem for mips and mips64.

For sparc64, given the above, I did not bother to bisect, but just reverted
commit 4f3316c (locking,arch,sparc: Fold atomic_ops). This fixes the problem
for sparc64.

Guenter
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