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Bug#499658: marked as done (kmtrace crashes while loading a trace dump)

Your message dated Wed, 31 Mar 2010 23:15:56 +0200
with message-id <201003312315.57241.ewoerner@kde.org>
and subject line Re: kmtrace crashes while loading a trace dump
has caused the Debian Bug report #499658,
regarding kmtrace crashes while loading a trace dump
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
499658: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=499658
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: kmtrace
Version: 4:3.5.9-2
Severity: normal


While analyzing the ktrace dump and binary located at:

   http://data.plan9.de/ktrace.out.crash.lzma
   http://data.plan9.de/deliantra-server.ktrace.crash.lzma

which was created by running:

   MALLOC_TRACE=/tmp/ktrace.out LD_PRELOAD=/usr/lib/kmtrace/libktrace.so server/deliantra-server 

kmtrace crashed like this (kmtrace ktrace.out):

   *** glibc detected *** kmtrace: realloc(): invalid next size: 0x0000000001c84ed0 ***
   ======= Backtrace: =========
   /lib/libc.so.6[0x7fb91a331978]
   /lib/libc.so.6[0x7fb91a335571]
   /lib/libc.so.6(realloc+0x12f)[0x7fb91a335fef]
   /usr/lib/libqt-mt.so.3(QGArray::resize(unsigned int, QGArray::Optimization)+0x3a)[0x7fb919e3baea]
   /usr/lib/libqt-mt.so.3(QGArray::resize(unsigned int)+0xb)[0x7fb919e3bb5b]
   /usr/lib/libqt-mt.so.3(QCString::resize(unsigned int)+0x30)[0x7fb919e2f3c0]
   /usr/lib/libqt-mt.so.3(QCString::sprintf(char const*, ...)+0xce)[0x7fb919e2ff7e]
   kmtrace[0x4049aa]
   kmtrace[0x406579]
   /lib/libc.so.6(__libc_start_main+0xe6)[0x7fb91a2dc1a6]
   kmtrace(QGList::~QGList()+0x99)[0x4038c9]

The output up until then is:

   http://data.plan9.de/ktrace.crash.log.lzma

Running with valgrind results in:

   Looking up symbols...
   Looking up symbols: 330600 found 4641 of 4641 symbols
   Looking up unknown symbols...
   ==20690== Invalid write of size 1
   ==20690==    at 0x4C22B38: mempcpy (mc_replace_strmem.c:677)
   ==20690==    by 0x5AF210D: _IO_default_xsputn (genops.c:469)
   ==20690==    by 0x5AC7879: vfprintf (vfprintf.c:1560)
   ==20690==    by 0x5AE6DF8: vsprintf (iovsprintf.c:43)
   ==20690==    by 0x6399F5B: QCString::sprintf(char const*, ...) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4049A9: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690==  Address 0xb12eff0 is 0 bytes after a block of size 256 alloc'd
   ==20690==    at 0x4C20FEB: malloc (vg_replace_malloc.c:207)
   ==20690==    by 0x63A5B43: QGArray::resize(unsigned, QGArray::Optimization) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x63A5B5A: QGArray::resize(unsigned) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x6399F9C: QCString::sprintf(char const*, ...) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4049A9: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690== 
   ==20690== Invalid write of size 1
   ==20690==    at 0x5AF20A5: _IO_default_xsputn (genops.c:481)
   ==20690==    by 0x5AC47A1: vfprintf (vfprintf.c:1590)
   ==20690==    by 0x5AE6DF8: vsprintf (iovsprintf.c:43)
   ==20690==    by 0x6399F5B: QCString::sprintf(char const*, ...) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4049A9: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690==  Address 0xb12f0a2 is 10 bytes inside a block of size 24 free'd
   ==20690==    at 0x4C207FC: operator delete(void*) (vg_replace_malloc.c:342)
   ==20690==    by 0x63A610F: QGArray::~QGArray() (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4067EA: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690== 
   ==20690== Invalid write of size 1
   ==20690==    at 0x5AE6E07: vsprintf (iovsprintf.c:44)
   ==20690==    by 0x6399F5B: QCString::sprintf(char const*, ...) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4049A9: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690==  Address 0xb12f0a3 is 11 bytes inside a block of size 24 free'd
   ==20690==    at 0x4C207FC: operator delete(void*) (vg_replace_malloc.c:342)
   ==20690==    by 0x63A610F: QGArray::~QGArray() (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4067EA: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690== 
   ==20690== Invalid read of size 1
   ==20690==    at 0x4C21FA4: strlen (mc_replace_strmem.c:242)
   ==20690==    by 0x6399F72: QCString::sprintf(char const*, ...) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4049A9: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690==  Address 0xb12eff0 is 0 bytes after a block of size 256 alloc'd
   ==20690==    at 0x4C20FEB: malloc (vg_replace_malloc.c:207)
   ==20690==    by 0x63A5B43: QGArray::resize(unsigned, QGArray::Optimization) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x63A5B5A: QGArray::resize(unsigned) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x6399F9C: QCString::sprintf(char const*, ...) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4049A9: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690== 
   ==20690== Conditional jump or move depends on uninitialised value(s)
   ==20690==    at 0x4C21FA8: strlen (mc_replace_strmem.c:242)
   ==20690==    by 0x6398CBA: qstrdup(char const*) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4049C4: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   ==20690== 
   ==20690== Conditional jump or move depends on uninitialised value(s)
   ==20690==    at 0x4C23431: strcpy (mc_replace_strmem.c:268)
   ==20690==    by 0x4049C4: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)
   --20690-- VALGRIND INTERNAL ERROR: Valgrind received a signal 11 (SIGSEGV) - exiting
   --20690-- si_code=80;  Faulting address: 0x0;  sp: 0x402E87DF0

   valgrind: the 'impossible' happened:
      Killed by fatal signal
   ==20690==    at 0x380215AD: mkFreeBlock (m_mallocfree.c:205)
   ==20690==    by 0x38021E56: vgPlain_arena_malloc (m_mallocfree.c:1204)
   ==20690==    by 0x38002909: vgMemCheck_new_block (mc_malloc_wrappers.c:195)
   ==20690==    by 0x38002D43: vgMemCheck_malloc (mc_malloc_wrappers.c:226)
   ==20690==    by 0x38033DC6: vgPlain_scheduler (scheduler.c:1269)
   ==20690==    by 0x380448D3: run_a_thread_NORETURN (syswrap-linux.c:89)

   sched status:
     running_tid=1

   Thread 1: status = VgTs_Runnable
   ==20690==    at 0x4C20FEB: malloc (vg_replace_malloc.c:207)
   ==20690==    by 0x63A5B43: QGArray::resize(unsigned, QGArray::Optimization) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x63A5B5A: QGArray::resize(unsigned) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x6399F9C: QCString::sprintf(char const*, ...) (in /localvol/usr/lib/libqt-mt.so.3.3.8)
   ==20690==    by 0x4049A9: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x406578: (within /localvol/usr/bin/kmtrace)
   ==20690==    by 0x5A9E1A5: (below main) (libc-start.c:222)




-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages kmtrace depends on:
ii  kdelibs4c2a             4:3.5.9.dfsg.1-4 core libraries and binaries for al
ii  less                    394-4            Pager program similar to more
hi  libc6                   2.7-12           GNU C Library: Shared libraries
ii  libgcc1                 1:4.3.1-8        GCC support library
ii  libqt3-mt               3:3.3.8b-5       Qt GUI Library (Threaded runtime v
ii  libstdc++6              4.3.1-8          The GNU Standard C++ Library v3

kmtrace recommends no packages.

-- no debconf information

--- End Message ---
--- Begin Message --- 
Version: 4:4.3.4-1

The bug you reported has (most likely) been fixed in or before KDE SC 4.3.4

--- End Message ---
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