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SubjectRe: linux-next: Tree for Oct 15
On Tue, Oct 16, 2018 at 07:33:59AM +1100, Stephen Rothwell wrote:
> 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,
> > >
> > > Changes since 20181012:
> > >
> > > My qemu boots of a powerpc pseries_le_defconfig kernel failed today.
> > >
> >
> > Bisect log:
> >
> > # 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 generic version of prepare_hugepage_range
> > git bisect good e3895cf23a25da6dea2c8e986d4f6c24fafe5448
> > # good: [627f8833ac26e66d4b50676a0251499474bb4ee4] reiserfs: propagate errors from fill_with_dentries() properly
> > git bisect good 627f8833ac26e66d4b50676a0251499474bb4ee4
> > # good: [e38910adf47ba1d0b5a5a573cc26bde1ec533147] memblock: replace alloc_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 __free_pages_bootmem to memblock_free_pages
> > git bisect good 1f94dacb1d0ed0d1068b89ad867a198d3eca7bf2
> > # good: [c3954ade0c1b499ae587f3edb813876216212836] memblock: replace BOOTMEM_ALLOC_* with MEMBLOCK variants
> > git bisect good c3954ade0c1b499ae587f3edb813876216212836
> > # bad: [cde1c7f7e92aef241f1c1a09a4d1f1f06fd565b6] mm: remove include/linux/bootmem.h
> > git bisect bad cde1c7f7e92aef241f1c1a09a4d1f1f06fd565b6
> > # first bad commit: [cde1c7f7e92aef241f1c1a09a4d1f1f06fd565b6] mm: remove include/linux/bootmem.h
> >
> > Reverting this patch together with its fix-up "powerpc: fix up for removal of
> > linux/bootmem.h" fixes the problem. This also fixes the traceback seen with all
> > other ppc64 images.
> >
> > Guenter
>
> Thanks for this ... though a strange result as those patches were in
> next-20181012 as well, so I wonder what else changed.
>
Quite simple - the bisect is wrong. For some reason I started with
next-20181012 (which was fine), not 20181015 (which is broken).
Repeating it now. Sorry for the confusion.

Guenter

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