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[Po-Hsu Lin <2093235@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

This is a new test case specific for PowerPC, it was added into LTP from
libhugetlbfs on 2024 Nov. 01 [1] therefore this is not a regression but
a new failure after updating our LTP fork.

This issue can be found on B/F/J kernel, passed with newer kernels.

Test log:
 startup='Tue Jan  7 03:08:04 2025'
 tst_hugepage.c:84: TINFO: 1 hugepage(s) reserved
 tst_tmpdir.c:316: TINFO: Using /tmp/ltp-zJ9QXhyfOc/LTP_hugZCgYS8 as tmpdir (ext2/ext3/ext4 filesystem)
 tst_test.c:1103: TINFO: Mounting none to /tmp/ltp-zJ9QXhyfOc/LTP_hugZCgYS8/hugetlbfs fstyp=hugetlbfs flags=0
 tst_test.c:1893: TINFO: LTP version: 20230929-1018-g20e346e73
 tst_test.c:1897: TINFO: Tested kernel: 5.15.0-130-generic #140-Ubuntu SMP Wed Dec 18 17:59:12 UTC 2024 ppc64le
 tst_test.c:1728: TINFO: Timeout per run is 0h 00m 30s
 hugemmap34.c:152: TINFO: searching for huge page and child stack placement
 hugemmap34.c:175: TINFO: potential stack at address 0x792a2d400000
 hugemmap34.c:191: TINFO: stack = 0x792a2d400000-0x792a2d600000, hugepage = 0x792a2c200000-0x792a2c400000
 tst_coredump.c:30: TINFO: Avoid dumping corefile for process(pid=74336)
 hugemmap34.c:56: TINFO: Child process starting with top of stack at 0x792a2d5fff80
 tst_test.c:1790: TBROK: Test killed by SIGSEGV!
 
 HINT: You _MAY_ be missing kernel fixes:
 
 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0d59a01bc461
 
 Summary:
 passed   0
 failed   0
 broken   1
 skipped  0
 warnings 0
 tag=hugemmap34 stime=1736219284 dur=0 exit=exited stat=2 core=no cu=0 cs=0


https://github.com/linux-test-project/ltp/commit/21fdea479993ebe730d6cfc341a128de48262840

** Affects: ubuntu-kernel-tests
     Importance: Undecided
         Status: New


** Tags: 4.15 5.15 5.4 bionic focal jammy ppc64el ubuntu-ltp-stable

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https://bugs.launchpad.net/bugs/2093235

Title:
   hugemmap34 from ubuntu_ltp_stable/hugetlb failed on B/F/J PowerPC

Status in ubuntu-kernel-tests:
  New

Bug description:
  This is a new test case specific for PowerPC, it was added into LTP
  from libhugetlbfs on 2024 Nov. 01 [1] therefore this is not a
  regression but a new failure after updating our LTP fork.

  This issue can be found on B/F/J kernel, passed with newer kernels.

  Test log:
   startup='Tue Jan  7 03:08:04 2025'
   tst_hugepage.c:84: TINFO: 1 hugepage(s) reserved
   tst_tmpdir.c:316: TINFO: Using /tmp/ltp-zJ9QXhyfOc/LTP_hugZCgYS8 as tmpdir (ext2/ext3/ext4 filesystem)
   tst_test.c:1103: TINFO: Mounting none to /tmp/ltp-zJ9QXhyfOc/LTP_hugZCgYS8/hugetlbfs fstyp=hugetlbfs flags=0
   tst_test.c:1893: TINFO: LTP version: 20230929-1018-g20e346e73
   tst_test.c:1897: TINFO: Tested kernel: 5.15.0-130-generic #140-Ubuntu SMP Wed Dec 18 17:59:12 UTC 2024 ppc64le
   tst_test.c:1728: TINFO: Timeout per run is 0h 00m 30s
   hugemmap34.c:152: TINFO: searching for huge page and child stack placement
   hugemmap34.c:175: TINFO: potential stack at address 0x792a2d400000
   hugemmap34.c:191: TINFO: stack = 0x792a2d400000-0x792a2d600000, hugepage = 0x792a2c200000-0x792a2c400000
   tst_coredump.c:30: TINFO: Avoid dumping corefile for process(pid=74336)
   hugemmap34.c:56: TINFO: Child process starting with top of stack at 0x792a2d5fff80
   tst_test.c:1790: TBROK: Test killed by SIGSEGV!
   
   HINT: You _MAY_ be missing kernel fixes:
   
   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0d59a01bc461
   
   Summary:
   passed   0
   failed   0
   broken   1
   skipped  0
   warnings 0
   tag=hugemmap34 stime=1736219284 dur=0 exit=exited stat=2 core=no cu=0 cs=0

  
  https://github.com/linux-test-project/ltp/commit/21fdea479993ebe730d6cfc341a128de48262840

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