Re: pkg/51105: python 2.7 crashes while building gstreamer

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR pkg/51105; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: pkg/51105: python 2.7 crashes while building gstreamer
Date: Sat, 30 Apr 2016 18:43:52 +0200

 Obviously this is in dtor handling when unloading libgthread.
 Even when build with symbols, it does not show a lot more:
 
 #0  0x00007f7feca05643 in ?? ()
 #1  0x00007f7fec6005a5 in ?? () from /usr/pkg/lib/libgthread-2.0.so.0
 (gdb) x/16i 0x00007f7fec600500
    0x7f7fec600500:      pushq  0x200562(%rip)        # 0x7f7fec800a68
    0x7f7fec600506:      jmpq   *0x200564(%rip)        # 0x7f7fec800a70
    0x7f7fec60050c:      nopl   0x0(%rax)
    0x7f7fec600510 <g_assertion_message_expr@plt>:       
     jmpq   *0x200562(%rip)        # 0x7f7fec800a78
    0x7f7fec600516 <g_assertion_message_expr@plt+6>:     pushq  $0x0
    0x7f7fec60051b <g_assertion_message_expr@plt+11>:    jmpq   0x7f7fec600500
    0x7f7fec600520 <g_log@plt>:  jmpq   *0x20055a(%rip)        # 0x7f7fec800a80
    0x7f7fec600526 <g_log@plt+6>:        pushq  $0x1
    0x7f7fec60052b <g_log@plt+11>:       jmpq   0x7f7fec600500
    0x7f7fec600530:      jmpq   *0x20050a(%rip)        # 0x7f7fec800a40
    0x7f7fec600536:      xchg   %ax,%ax
    0x7f7fec600538:      jmpq   *0x20050a(%rip)        # 0x7f7fec800a48
    0x7f7fec60053e:      xchg   %ax,%ax
 [..]
    0x7f7fec600562:      cmpq   $0x0,0x2004e6(%rip)        # 0x7f7fec800a50
    0x7f7fec60056a:      je     0x7f7fec600578
    0x7f7fec60056c:      
     mov    0x200515(%rip),%rdi        # 0x7f7fec800a88 <__dso_handle>
    0x7f7fec600573:      callq  0x7f7fec600540
    0x7f7fec600578:      lea    0x2002f1(%rip),%rbx        # 0x7f7fec800870
    0x7f7fec60057f:      mov    (%rbx),%rax
    0x7f7fec600582:      test   %rax,%rax
    0x7f7fec600585:      je     0x7f7fec60058f
    0x7f7fec600587:      callq  *%rax
    0x7f7fec600589:      add    $0x8,%rbx
    0x7f7fec60058d:      jmp    0x7f7fec60057f
    0x7f7fec60058f:      cmpq   $0x0,0x2004a9(%rip)        # 0x7f7fec800a40
    0x7f7fec600597:      je     0x7f7fec6005a5
    0x7f7fec600599:      lea    0x250(%rip),%rdi        # 0x7f7fec6007f0
    0x7f7fec6005a0:      callq  0x7f7fec600530
    0x7f7fec6005a5:      pop    %rbx
    0x7f7fec6005a6:      retq   
 
 (gdb) x/i 0x7f7fec600530
    0x7f7fec600530:      jmpq   *0x20050a(%rip)        # 0x7f7fec800a40
 
 
 Martin