commit 3c558088365386eccc69c0b0609d9ec0edd1185f
author Ghanan Gowripalan <ghanan@fuchsia.infra.roller.google.com> Mon Oct 23 21:12:08 2023 +0000
committer Copybara-Service <copybara-worker@google.com> Mon Oct 23 14:13:35 2023 -0700
tree 274973b04cfc3b0ac31d66f75b31eaa2dd028898
parent 1d2e196c0d47c42988485a2c15bf373be15c851d

[roll] Roll fuchsia [starnix] Disable `VdsoProcTest.VdsoMappingCannotBeSplit`

...while we root-cause the issue.

This test skips if the size of the VDSO is less than the size of a page
but it seems that with commit ad96ed467f85e705498862feba8a0dcf907fa2dc,
the size of the VDSO is larger than a page. Now that the test actually
runs, it seems to fail on debug (`core.x64-debug` and `core.x64-cxx20`)
bots.

Example passing run (https://ci.chromium.org/b/8766430415579643729)
without commit ad96ed467f85e705498862feba8a0dcf907fa2dc:
```
[ RUN      ] VdsoProcTest.VdsoMappingCannotBeSplit
Need more than one vdso page to split it
[  SKIPPED ] VdsoProcTest.VdsoMappingCannotBeSplit (3 ms)
```

Example failing run (https://ci.chromium.org/b/8766425363400613185)
with commit ad96ed467f85e705498862feba8a0dcf907fa2dc:
```
[ RUN      ] VdsoProcTest.VdsoMappingCannotBeSplit
Expected: (munmap(vdso_base_, page_size)) != (0), actual: 0 vs 0
vdso: base 0x2923fff1000 size 8192 page size: 4096
Expected equality of these values:
  (*__errno_location ())
    Which is: 10
  22
Value of: helper.WaitForChildren()
  Actual: false (wait_status: WIFEXITED(wstatus) = true, WEXITSTATUS(wstatus) = 1, WTERMSIG(wstatus) = 0)
Expected: true
Expected: (mprotect(vdso_base_, page_size, 0x0)) != (0), actual: 0 vs 0
Expected equality of these values:
  (*__errno_location ())
    Which is: 10
  22
Value of: helper.WaitForChildren()
  Actual: false (wait_status: WIFEXITED(wstatus) = true, WEXITSTATUS(wstatus) = 1, WTERMSIG(wstatus) = 0)
Expected: true
Expected equality of these values:
  mmap(vdso_base_, page_size, 0x0, 0x10 | 0x02 | 0x20, -1, 0)
    Which is: 0x2923fff1000
  ((void *) -1)
    Which is: 0xffffffffffffffff
Expected equality of these values:
  (*__errno_location ())
    Which is: 10
  12
Value of: helper.WaitForChildren()
  Actual: false (wait_status: WIFEXITED(wstatus) = true, WEXITSTATUS(wstatus) = 1, WTERMSIG(wstatus) = 0)
Expected: true
Expected equality of these values:
  mremap(vdso_base_, page_size, page_size, 1 | 2, new_addr)
    Which is: 0x19214f34000
  ((void *) -1)
    Which is: 0xffffffffffffffff
Expected equality of these values:
  (*__errno_location ())
    Which is: 10
  22
Value of: helper.WaitForChildren()
  Actual: false (wait_status: WIFEXITED(wstatus) = true, WEXITSTATUS(wstatus) = 1, WTERMSIG(wstatus) = 0)
Expected: true
Expected equality of these values:
  mremap(new_addr, page_size, page_size, 1 | 2, vdso_base_)
    Which is: 0x2923fff1000
  ((void *) -1)
    Which is: 0xffffffffffffffff
Expected equality of these values:
  (*__errno_location ())
    Which is: 10
  22
Value of: helper.WaitForChildren()
  Actual: false (wait_status: WIFEXITED(wstatus) = true, WEXITSTATUS(wstatus) = 1, WTERMSIG(wstatus) = 0)
Expected: true
[  FAILED  ] VdsoProcTest.VdsoMappingCannotBeSplit (15 ms)
```

Original-Bug: 135641
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/936121
Original-Revision: b6e78418bba1302f49cafa100c130f21080b8cd3
GitOrigin-RevId: be615c8aad33f3dd9e4c3b9b86c57abb8e7873ee
Change-Id: I6e2257b8015add65948cbd37354afd75bf2d63a2