[Bug 490011] [NEW] Crash in ~Qstring

[Vadim Peretokin]

Public bug reported:

Happens randomly when Mudlet (qt program) is quitting. This issue
doesn't happen when one uses Qt's libs.

Stacktrace:
 #0  0x00000000004328e3 in QString::~QString() ()
 No symbol table info available.
 #1  0x00007ff847065c12 in __run_exit_handlers (status=0) at exit.c:78
         atfct = <value optimized out>
         onfct = <value optimized out>
         cxafct = 0x2c
         run_list_atexit = <value optimized out>
         listp = <value optimized out>
 #2  *__GI_exit (status=0) at exit.c:100
 No locals.
 #3  0x00007ff84704bac4 in __libc_start_main (main=<value optimized out>, 
     argc=<value optimized out>, ubp_av=<value optimized out>, 
     init=<value optimized out>, fini=<value optimized out>, 
     rtld_fini=<value optimized out>, stack_end=0x7fff2f6b22f8)
     at libc-start.c:252
         result = 44
         unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -3708713291383249416, 
                 4328400, 140733988938496, 0, 0, 3708254969895642616, 
                 3708871387098965496}, mask_was_saved = 0}}, priv = {pad = {
               0x0, 0x0, 0x5635d0, 0x7fff2f6b2308}, data = {prev = 0x0, 
               cleanup = 0x0, canceltype = 5649872}}}
         not_first_call = <value optimized out>
 #4  0x0000000000420bf9 in _start () at ../sysdeps/x86_64/elf/start.S:113
 No locals.
StacktraceTop:
 QString::~QString() ()
 __run_exit_handlers (status=0) at exit.c:78
 *__GI_exit (status=0) at exit.c:100
 __libc_start_main (main=<value optimized out>, 
 _start () at ../sysdeps/x86_64/elf/start.S:113
ThreadStacktrace:
 .
 Thread 1 (Thread 29973):
 #0  0x00000000004328e3 in QString::~QString() ()
 No symbol table info available.
 #1  0x00007ff847065c12 in __run_exit_handlers (status=0) at exit.c:78
         atfct = <value optimized out>
         onfct = <value optimized out>
         cxafct = 0x2c
         run_list_atexit = <value optimized out>
         listp = <value optimized out>
 #2  *__GI_exit (status=0) at exit.c:100
 No locals.
 #3  0x00007ff84704bac4 in __libc_start_main (main=<value optimized out>, 
     argc=<value optimized out>, ubp_av=<value optimized out>, 
     init=<value optimized out>, fini=<value optimized out>, 
     rtld_fini=<value optimized out>, stack_end=0x7fff2f6b22f8)
     at libc-start.c:252
         result = 44
         unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -3708713291383249416, 
                 4328400, 140733988938496, 0, 0, 3708254969895642616, 
                 3708871387098965496}, mask_was_saved = 0}}, priv = {pad = {
               0x0, 0x0, 0x5635d0, 0x7fff2f6b2308}, data = {prev = 0x0, 
               cleanup = 0x0, canceltype = 5649872}}}
         not_first_call = <value optimized out>
 #4  0x0000000000420bf9 in _start () at ../sysdeps/x86_64/elf/start.S:113
 No locals.
Title: mudlet crashed with SIGSEGV in QString::~QString()

** Affects: qt4-x11 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Crash in ~Qstring
https://bugs.launchpad.net/bugs/490011
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