Re: [PATCH] mm/debug_vm_pgtable: Fix corrupted PG_arch_1 by set_pmd_at()

[Gavin Shan]

On 7/12/21 1:21 PM, Anshuman Khandual wrote:
> On 7/8/21 6:05 AM, kernel test robot wrote:
> > Hi Gavin,
> >
> > Thank you for the patch! Yet something to improve:
> >
> > [auto build test ERROR on linus/master]
> > [cannot apply to hnaz-linux-mm/master linux/master v5.13 next-20210707]
> > [If your patch is applied to the wrong git tree, kindly drop us a note.
> > And when submitting patch, we suggest to use '--base' as documented in
> > https://git-scm.com/docs/git-format-patch]
> >
> > url:    https://github.com/0day-ci/linux/commits/Gavin-Shan/mm-debug_vm_pgtable-Fix-corrupted-PG_arch_1-by-set_pmd_at/20210702-183310
> > base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 3dbdb38e286903ec220aaf1fb29a8d94297da246
> > config: x86_64-allyesconfig (attached as .config)
> > compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
> > reproduce (this is a W=1 build):
> >          # https://github.com/0day-ci/linux/commit/414db1c0feb54b545b3df56bc19ffff27580deb5
> >          git remote add linux-review https://github.com/0day-ci/linux
> >          git fetch --no-tags linux-review Gavin-Shan/mm-debug_vm_pgtable-Fix-corrupted-PG_arch_1-by-set_pmd_at/20210702-183310
> >          git checkout 414db1c0feb54b545b3df56bc19ffff27580deb5
> >          # save the attached .config to linux build tree
> >          make W=1 ARCH=x86_64
> >
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> >
> > All errors (new ones prefixed by >>):
> >
> >     In file included from arch/x86/include/asm/page.h:76,
> >                      from arch/x86/include/asm/thread_info.h:12,
> >                      from include/linux/thread_info.h:59,
> >                      from arch/x86/include/asm/preempt.h:7,
> >                      from include/linux/preempt.h:78,
> >                      from include/linux/spinlock.h:51,
> >                      from include/linux/mmzone.h:8,
> >                      from include/linux/gfp.h:6,
> >                      from mm/debug_vm_pgtable.c:13:
> >     mm/debug_vm_pgtable.c: In function 'pud_advanced_tests':
> > > > include/asm-generic/memory_model.h:25:37: error: invalid operands to binary + (have 'struct page *' and 'struct page *')
>
>
> So this problem has been fixed in the other series (which now
> includes this patch) you have posted ?

Yes, Anshuman. Please ignore this one. The fix has been included into
the following series. The last patch [12/12] of that series fixes the
issue.

[PATCH 00/12] mm/debug_vm_pgtable: Enhancements

Thanks,
Gavin