kernel-packages team mailing list archive

[Dmitry <mikhin@xxxxxxxxxxxxx>]

Public bug reported:

Consider the following code:
# cat test.c 
int main()
{
        return 0;
}

Now compile it with clang-3.5 and -fsanitize=thread option and run:
# clang-3.5 -fsanitize=thread -fPIE -pie test.c
# ./a.out 
FATAL: ThreadSanitizer can not mmap the shadow memory (something is mapped at 0x5650b0bb2000 < 0x7cf000000000)
FATAL: Make sure to compile with -fPIE and to link with -pie.
# uname -a
Linux mikhin2 3.19.0-41-generic #46~14.04.2-Ubuntu SMP Tue Dec 8 17:46:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

This regression appears in 3.19.0-41-generic kernel. The example above
runs fine (without FATAL errors) with previous  3.19.0-39-generic
kernel.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.19.0-41-generic 3.19.0-41.46~14.04.2
ProcVersionSignature: Ubuntu 3.19.0-39.44~14.04.1-generic 3.19.8-ckt9
Uname: Linux 3.19.0-39-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri Dec 18 14:53:45 2015
InstallationDate: Installed on 2015-12-14 (4 days ago)
InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: linux-lts-vivid
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: linux-lts-vivid (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-lts-vivid in Ubuntu.
https://bugs.launchpad.net/bugs/1527599

Title:
  applications compiled with tsan (-fsanitize=thread) option fails to
  start with 3.19.0-41-generic kernel

Status in linux-lts-vivid package in Ubuntu:
  New

Bug description:
  Consider the following code:
  # cat test.c 
  int main()
  {
          return 0;
  }

  Now compile it with clang-3.5 and -fsanitize=thread option and run:
  # clang-3.5 -fsanitize=thread -fPIE -pie test.c
  # ./a.out 
  FATAL: ThreadSanitizer can not mmap the shadow memory (something is mapped at 0x5650b0bb2000 < 0x7cf000000000)
  FATAL: Make sure to compile with -fPIE and to link with -pie.
  # uname -a
  Linux mikhin2 3.19.0-41-generic #46~14.04.2-Ubuntu SMP Tue Dec 8 17:46:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  This regression appears in 3.19.0-41-generic kernel. The example above
  runs fine (without FATAL errors) with previous  3.19.0-39-generic
  kernel.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.19.0-41-generic 3.19.0-41.46~14.04.2
  ProcVersionSignature: Ubuntu 3.19.0-39.44~14.04.1-generic 3.19.8-ckt9
  Uname: Linux 3.19.0-39-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Fri Dec 18 14:53:45 2015
  InstallationDate: Installed on 2015-12-14 (4 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  SourcePackage: linux-lts-vivid
  UpgradeStatus: No upgrade log present (probably fresh install)

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