[LTP] [PATCH v4 14/21] mm/mmap: Avoid zeroing vma tree in mmap_region()

Liam R. Howlett Liam.Howlett@oracle.com
Wed Jul 17 19:42:37 CEST 2024


* kernel test robot <oliver.sang@intel.com> [240716 08:47]:
> 
> 
> Hello,
> 
> kernel test robot noticed "ltp.hugemmap06.fail" on:

Hello Robot!

Thank you for finding this, it will certainly help me improve my next
revision of my series!

> 
> commit: d793398401db9fb81084bd4fe2f782342201df18 ("[PATCH v4 14/21] mm/mmap: Avoid zeroing vma tree in mmap_region()")
> url: https://github.com/intel-lab-lkp/linux/commits/Liam-R-Howlett/mm-mmap-Correctly-position-vma_iterator-in-__split_vma/20240711-075019
> base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything
> patch link: https://lore.kernel.org/all/20240710192250.4114783-15-Liam.Howlett@oracle.com/
> patch subject: [PATCH v4 14/21] mm/mmap: Avoid zeroing vma tree in mmap_region()
> 
> in testcase: ltp
> version: ltp-x86_64-14c1f76-1_20240706
> with following parameters:
> 
> 	test: hugetlb/hugemmap06
> 
> 
> 

This is because I am trying to set up a MAP_FIXED huge page before
hugetlb_vm_op_close() is called, which removes the reserved huge pages.

I will address this in v5.


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