[Bug 1456292] Re: GParted: Segmentation fault (core dumped)

[Phillip Susi]

You ran an strace of pkexec rather than gparted, and it doesn't show any
output indicating that anything went wrong.  If you want to strace
gparted you need to run it on gpartedbin.  A good thing to start with is
simply running gparted normally though and showing the output.  If it is
segfaulting, the best thing to do is to run it under gdb instead of
strace and obtain a backtrace ( with the bt command ) when it segfaults.


** Changed in: gparted (Ubuntu)
       Status: New => Incomplete

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Title:
  GParted: Segmentation fault (core dumped)

Status in gparted package in Ubuntu:
  Incomplete

Bug description:
  Output of

  ```
  strace -o output.txt gparted-pkexec
  ```

      execve("/usr/bin/gparted-pkexec", ["gparted-pkexec"], [/* 68 vars */]) = 0
      brk(0)                                  = 0x7fb67525f000
      access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
      mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb673800000
      access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
      open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
      fstat(3, {st_mode=S_IFREG|0644, st_size=184487, ...}) = 0
      mmap(NULL, 184487, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb6737d2000
      close(3)                                = 0
      access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
      open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
      read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\v\2\0\0\0\0\0"..., 832) = 832
      fstat(3, {st_mode=S_IFREG|0755, st_size=1869392, ...}) = 0
      mmap(NULL, 3972864, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb673215000
      mprotect(0x7fb6733d5000, 2097152, PROT_NONE) = 0
      mmap(0x7fb6735d5000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1c0000) = 0x7fb6735d5000
      mmap(0x7fb6735db000, 16128, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb6735db000
      close(3)                                = 0
      mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb6737d1000
      mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb6737d0000
      mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb6737cf000
      arch_prctl(ARCH_SET_FS, 0x7fb6737d0700) = 0
      mprotect(0x7fb6735d5000, 16384, PROT_READ) = 0
      mprotect(0x7fb673a20000, 8192, PROT_READ) = 0
      mprotect(0x7fb673802000, 4096, PROT_READ) = 0
      munmap(0x7fb6737d2000, 184487)          = 0
      getpid()                                = 12255
      rt_sigaction(SIGCHLD, {0x7fb673817460, ~[RTMIN RT_1], SA_RESTORER, 0x7fb67324a2f0}, NULL, 8) = 0
      geteuid()                               = 1000
      brk(0)                                  = 0x7fb67525f000
      brk(0x7fb675280000)                     = 0x7fb675280000
      getppid()                               = 12252
      stat("/home/aboettger/tmp", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0
      stat(".", {st_mode=S_IFDIR|0775, st_size=4096, ...}) = 0
      open("/usr/bin/gparted-pkexec", O_RDONLY) = 3
      fcntl(3, F_DUPFD, 10)                   = 10
      close(3)                                = 0
      fcntl(10, F_SETFD, FD_CLOEXEC)          = 0
      rt_sigaction(SIGINT, NULL, {SIG_DFL, [], 0}, 8) = 0
      rt_sigaction(SIGINT, {0x7fb673817460, ~[RTMIN RT_1], SA_RESTORER, 0x7fb67324a2f0}, NULL, 8) = 0
      rt_sigaction(SIGQUIT, NULL, {SIG_DFL, [], 0}, 8) = 0
      rt_sigaction(SIGQUIT, {SIG_DFL, ~[RTMIN RT_1], SA_RESTORER, 0x7fb67324a2f0}, NULL, 8) = 0
      rt_sigaction(SIGTERM, NULL, {SIG_DFL, [], 0}, 8) = 0
      rt_sigaction(SIGTERM, {SIG_DFL, ~[RTMIN RT_1], SA_RESTORER, 0x7fb67324a2f0}, NULL, 8) = 0
      read(10, "#!/bin/sh\npkexec \"/usr/sbin/gpar"..., 8192) = 42
      stat("/usr/local/sbin/pkexec", 0x7ffca29d4400) = -1 ENOENT (No such file or directory)
      stat("/usr/local/bin/pkexec", 0x7ffca29d4400) = -1 ENOENT (No such file or directory)
      stat("/usr/sbin/pkexec", 0x7ffca29d4400) = -1 ENOENT (No such file or directory)
      stat("/usr/bin/pkexec", {st_mode=S_IFREG|S_ISUID|0755, st_size=23304, ...}) = 0
      clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fb6737d09d0) = 12256
      wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 12256
      --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=12256, si_status=0, si_utime=0, si_stime=0} ---
      rt_sigreturn()                          = 12256
      read(10, "", 8192)                      = 0
      exit_group(0)                           = ?
      +++ exited with 0 +++

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: gparted 0.19.0-2
  ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
  Uname: Linux 3.19.0-16-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Mon May 18 19:48:46 2015
  InstallationDate: Installed on 2015-03-16 (62 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Alpha amd64 (20150316)
  SourcePackage: gparted
  UpgradeStatus: No upgrade log present (probably fresh install)

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