canonical-ubuntu-qa team mailing list archive

[Roxana Nicolescu <2009442@xxxxxxxxxxxxxxxxxx>]

** Description changed:

- bionic linux-kvm failure
- https://autopkgtest.ubuntu.com/results/autopkgtest-
- bionic/bionic/amd64/g/glibc/20230213_154436_b51c9@/log.gz
+ SRU Justification:
  
- TODO this is for later investigation. Will come back
+ [Impact]
+ bionic linux-kvm failure https://autopkgtest.ubuntu.com/results/autopkgtest-bionic/bionic/amd64/g/glibc/20230213_154436_b51c9@/log.gz
+ 
+ From logs
+ FAIL: misc/tst-bz21269
+ original exit status 1
+ error: ../sysdeps/unix/sysv/linux/i386/tst-bz21269.c:55: not true: syscall (SYS_modify_ldt, 1, ptr, bytecount) == 0
+ error: 1 test failures
+ 
+ Syscall modify_ldt is not enabled because CONFIG_MODIFY_LDT_SYSCALL=n
+ for bionic-kvm, even though generic and newer versions (even kvm
+ derivativatives) have it enabled.
+ 
+ [Fix]
+ Custom patch to bionic-kvm to enable CONFIG_MODIFY_LDT_SYSCALL
+ 
+ [Test Plan]
+ Before the fix, autopkgtest for glibc will fail with 
+ +---------------------------------------------------------------------+
+ |     Encountered regressions that don't match expected failures.     |
+ +---------------------------------------------------------------------+
+ FAIL: misc/tst-bz21269
+ 
+ After the fix, it should pass
+ 
+ [Where problems could occur]
+ Regression probability is pretty low, we are adding functionality not previously present but looking at focal,jammy this test was fine.
+ 
+ Note: Not sure why this was not enabled for bionic-kvm, even though
+ newer versions of linux kvm has it enabled.

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https://bugs.launchpad.net/bugs/2009442

Title:
  glibc fails for bionic-kvm 4.15.0-1136.141

Status in autopkgtest package in Ubuntu:
  Incomplete
Status in linux-kvm package in Ubuntu:
  New
Status in autopkgtest source package in Bionic:
  New
Status in linux-kvm source package in Bionic:
  New

Bug description:
  SRU Justification:

  [Impact]
  bionic linux-kvm failure https://autopkgtest.ubuntu.com/results/autopkgtest-bionic/bionic/amd64/g/glibc/20230213_154436_b51c9@/log.gz

  From logs
  FAIL: misc/tst-bz21269
  original exit status 1
  error: ../sysdeps/unix/sysv/linux/i386/tst-bz21269.c:55: not true: syscall (SYS_modify_ldt, 1, ptr, bytecount) == 0
  error: 1 test failures

  Syscall modify_ldt is not enabled because CONFIG_MODIFY_LDT_SYSCALL=n
  for bionic-kvm, even though generic and newer versions (even kvm
  derivativatives) have it enabled.

  [Fix]
  Custom patch to bionic-kvm to enable CONFIG_MODIFY_LDT_SYSCALL

  [Test Plan]
  Before the fix, autopkgtest for glibc will fail with 
  +---------------------------------------------------------------------+
  |     Encountered regressions that don't match expected failures.     |
  +---------------------------------------------------------------------+
  FAIL: misc/tst-bz21269

  After the fix, it should pass

  [Where problems could occur]
  Regression probability is pretty low, we are adding functionality not previously present but looking at focal,jammy this test was fine.

  Note: Not sure why this was not enabled for bionic-kvm, even though
  newer versions of linux kvm has it enabled.

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