[Bug 1907298] Re: glibc 2.32-0ubuntu5 ADT test failure with linux 5.10.0-7.8

[Balint Reczey]

Since sigcontextinfo is used internally by glibc only for nice segfault
handling the regression I think it is ok to just XFAIL the test or
adjust sigcontext_get_pc implementation to post-5.10 behaviour, but
upstream may have a different opinion.

** Bug watch added: Sourceware.org Bugzilla #27223
   https://sourceware.org/bugzilla/show_bug.cgi?id=27223

** Also affects: glibc via
   https://sourceware.org/bugzilla/show_bug.cgi?id=27223
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1907298

Title:
  glibc 2.32-0ubuntu5 ADT test failure with linux 5.10.0-7.8

Status in GLibC:
  Unknown
Status in glibc package in Ubuntu:
  Confirmed

Bug description:
  Testing failed on:
      ppc64el: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-hirsute-canonical-kernel-team-bootstrap/hirsute/ppc64el/g/glibc/20201208_192946_04f11@/log.gz

  ----------
  FAIL: misc/tst-sigcontext-get_pc
  original exit status 1
  info: address in signal handler: 0x737faa11db44
  info: call stack entry 0: 0x737faa311f58
  info: call stack entry 1: 0x737faa3404c4
  info: call stack entry 2: 0x0
  info: call stack entry 3: 0x737faa312144
  info: call stack entry 4: 0x737faa312870
  info: call stack entry 5: 0x737faa313264
  info: call stack entry 6: 0x737faa311c40
  info: call stack entry 7: 0x737faa0f9e5c
  info: call stack entry 8: 0x737faa0fa040
  error: ../sysdeps/unix/sysv/linux/tst-sigcontext-get_pc.c:60: not true: found
  error: 1 test failures
  ----------

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