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mmap: Check if size exceeds available memory when MAP_HUGETLB

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If size exceeds, mmap fails and set -ENOMEM

Change-Id: I4f0d6e18ee3a7c8e32e251b7ed07ee9f76305603
Refs: #1183
This commit is contained in:
Ken Sato
2019-07-02 15:42:13 +09:00
committed by Masamichi Takagi
parent 2dd8687974
commit 8efced7bf7
11 changed files with 542 additions and 0 deletions
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126
test/issues/1183/aarch64_result.log Normal file
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*** C1183T01 start *******************************
** over-mapping with MAP_HUGETLB (expect mmap FAIL)
pageshift: 0
*** total_mapsize: 11 GB, mapsize: 11 pgshift: 0
** mmap 11 GB: failed
** [OK]
pageshift: 16
*** total_mapsize: 11 GB, mapsize: 11 pgshift: 16
** mmap 11 GB: failed
** [OK]
pageshift: 21
*** total_mapsize: 11 GB, mapsize: 11 pgshift: 21
** mmap 11 GB: failed
** [OK]
pageshift: 25
*** total_mapsize: 11 GB, mapsize: 11 pgshift: 25
** mmap 11 GB: failed
** [OK]
pageshift: 30
*** total_mapsize: 11 GB, mapsize: 11 pgshift: 30
** mmap 11 GB: failed
** [OK]
*** C1183T01: PASSED
*** C1183T02 start *******************************
** within-mapping with MAP_HUGETLB (expect mmap SUCCESS)
pageshift: 0
*** total_mapsize: 5 GB, mapsize: 5 pgshift: 0
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
pageshift: 16
*** total_mapsize: 5 GB, mapsize: 5 pgshift: 16
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
pageshift: 21
*** total_mapsize: 5 GB, mapsize: 5 pgshift: 21
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
pageshift: 25
*** total_mapsize: 5 GB, mapsize: 5 pgshift: 25
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
pageshift: 30
*** total_mapsize: 5 GB, mapsize: 5 pgshift: 30
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
*** C1183T02: PASSED
*** C1183T03 start *******************************
** multi within-mapping with MAP_HUGETLB
pageshift: 0
*** total_mapsize: 40 GB, mapsize: 5 pgshift: 0
** mmap 5 GB: succeed
** mmap 5 GB: failed
** [OK]
pageshift: 16
*** total_mapsize: 40 GB, mapsize: 5 pgshift: 16
** mmap 5 GB: succeed
** mmap 5 GB: failed
** [OK]
pageshift: 21
*** total_mapsize: 40 GB, mapsize: 5 pgshift: 21
** mmap 5 GB: succeed
** mmap 5 GB: failed
** [OK]
pageshift: 25
*** total_mapsize: 40 GB, mapsize: 5 pgshift: 25
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
pageshift: 30
*** total_mapsize: 40 GB, mapsize: 5 pgshift: 30
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
*** C1183T03: PASSED
*** C1183T04 start *******************************
** over-mapping without MAP_HUGETLB (expect mmap SUCCESS)
*** total_mapsize: 11 GB, mapsize: 11 pgshift: -1
** mmap 11 GB: succeed
** all mmaps succeeded
** [OK]
*** C1183T04: PASSED
*** C1183T05 start *******************************
** within-mapping without MAP_HUGETLB (expect mmap SUCCESS)
*** total_mapsize: 5 GB, mapsize: 5 pgshift: -1
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
*** C1183T05: PASSED
*** C1183T06 start *******************************
** multi within-mapping with MAP_HUGETLB (expect mmap SUCCESS)
*** total_mapsize: 40 GB, mapsize: 5 pgshift: -1
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** mmap 5 GB: succeed
** all mmaps succeeded
** [OK]
*** C1183T06: PASSED