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Date:   Tue, 16 Oct 2018 07:33:59 +1100
From:   Stephen Rothwell <sfr@canb.auug.org.au>
To:     Guenter Roeck <linux@roeck-us.net>
Cc:     Linux-Next Mailing List <linux-next@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Mike Rapoport <rppt@linux.vnet.ibm.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        PowerPC <linuxppc-dev@lists.ozlabs.org>
Subject: Re: linux-next: Tree for Oct 15
Message-ID: <20181016073359.3fa7bb32@canb.auug.org.au>
In-Reply-To: <20181015193914.GA9881@roeck-us.net>
References: <20181015192546.15faf3a1@canb.auug.org.au>
        <20181015193914.GA9881@roeck-us.net>
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Hi Guenter,

[Again, just cc'ing the PPC folks]

On Mon, 15 Oct 2018 12:39:14 -0700 Guenter Roeck <linux@roeck-us.net> wrote:
>
> On Mon, Oct 15, 2018 at 07:25:46PM +1100, Stephen Rothwell wrote:
> > Hi all,
> >=20
> > Changes since 20181012:
> >=20
> > My qemu boots of a powerpc pseries_le_defconfig kernel failed today.
> >  =20
>=20
> Bisect log:
>=20
> # bad: [774ea0551a2966c8fc29a6f675c3e28c5c6fa586] Add linux-next specific=
 files for 20181012
> # good: [0238df646e6224016a45505d2c111a24669ebe21] Linux 4.19-rc7
> git bisect start 'HEAD' 'v4.19-rc7'
> # good: [dfbf78faefa3c26d94208398e62bf25ea798e7f2] Merge remote-tracking =
branch 'spi-nor/spi-nor/next'
> git bisect good dfbf78faefa3c26d94208398e62bf25ea798e7f2
> # good: [3f296bb430327676912966c56d2f078f74e6b4ab] Merge remote-tracking =
branch 'tip/auto-latest'
> git bisect good 3f296bb430327676912966c56d2f078f74e6b4ab
> # good: [056ff0c45d1780f7bac1b54bd4160647efc500ad] Merge remote-tracking =
branch 'staging/staging-next'
> git bisect good 056ff0c45d1780f7bac1b54bd4160647efc500ad
> # good: [d7946b50c21a7d88af6c8e88d976ba3dfca651cc] Merge remote-tracking =
branch 'pinctrl/for-next'
> git bisect good d7946b50c21a7d88af6c8e88d976ba3dfca651cc
> # good: [72b5ca3121d5352fbb8fe3e1abaa86748205c0cb] Merge remote-tracking =
branch 'xarray/xarray'
> git bisect good 72b5ca3121d5352fbb8fe3e1abaa86748205c0cb
> # good: [e3895cf23a25da6dea2c8e986d4f6c24fafe5448] hugetlb: introduce gen=
eric version of prepare_hugepage_range
> git bisect good e3895cf23a25da6dea2c8e986d4f6c24fafe5448
> # good: [627f8833ac26e66d4b50676a0251499474bb4ee4] reiserfs: propagate er=
rors from fill_with_dentries() properly
> git bisect good 627f8833ac26e66d4b50676a0251499474bb4ee4
> # good: [e38910adf47ba1d0b5a5a573cc26bde1ec533147] memblock: replace allo=
c_bootmem_pages_node with memblock_alloc_node
> git bisect good e38910adf47ba1d0b5a5a573cc26bde1ec533147
> # bad: [f89bdd2c52666d9da4bf4ef3a97a7188586ba0fb] dma-direct: fix up for =
the removal of linux/bootmem.h
> git bisect bad f89bdd2c52666d9da4bf4ef3a97a7188586ba0fb
> # good: [3108d998dfc36eb7f6b7f2917fc561258f742094] mm: nobootmem: remove =
bootmem allocation APIs
> git bisect good 3108d998dfc36eb7f6b7f2917fc561258f742094
> # good: [1f94dacb1d0ed0d1068b89ad867a198d3eca7bf2] memblock: rename __fre=
e_pages_bootmem to memblock_free_pages
> git bisect good 1f94dacb1d0ed0d1068b89ad867a198d3eca7bf2
> # good: [c3954ade0c1b499ae587f3edb813876216212836] memblock: replace BOOT=
MEM_ALLOC_* with MEMBLOCK variants
> git bisect good c3954ade0c1b499ae587f3edb813876216212836
> # bad: [cde1c7f7e92aef241f1c1a09a4d1f1f06fd565b6] mm: remove include/linu=
x/bootmem.h
> git bisect bad cde1c7f7e92aef241f1c1a09a4d1f1f06fd565b6
> # first bad commit: [cde1c7f7e92aef241f1c1a09a4d1f1f06fd565b6] mm: remove=
 include/linux/bootmem.h
>=20
> Reverting this patch together with its fix-up "powerpc: fix up for remova=
l of
> linux/bootmem.h" fixes the problem. This also fixes the traceback seen wi=
th all
> other ppc64 images.
>=20
> Guenter

Thanks for this ... though a strange result as those patches were in
next-20181012 as well, so I wonder what else changed.

--=20
Cheers,
Stephen Rothwell

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