qBittorrent

qbittorrent crashes on start due to malformated line in IP filter file

Bug #398458 reported by Maxime Teissier on 2009-07-12

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	qBittorrent	Fix Released	Low	Christophe Dumez	qBittorrent 1.4.0

Bug Description

Qbittorrent used to work perfectly on my system (Ubuntu 9.04)
Today it refused to start, probably since one of its components update.
installed:
libtorrent-rasterbar2 version 0.14.2-2ubuntu1
qbittorrent version 1.3.3-1

The splash windows appears for a short moment and disappears.

If started from a console, the following text is put out:
----------------------------------------------------------------------------------------

max@PCMAX:~$ qbittorrent

*************************************************************
Catching SIGSEGV, please report a bug at http://bug.qbittorrent.org
and provide the following backtrace:
stack trace:
  [0xb7f29400]
  /usr/lib/libQtCore.so.4 : QLocalePrivate::numberToCLocale(QString const&, QLocalePrivate::GroupSeparatorMode, QVarLengthArray<char, 256>*) const+0x20 [0xb6e906c0]
  /usr/lib/libQtCore.so.4 : QLocalePrivate::stringToLongLong(QString const&, int, bool*, QLocalePrivate::GroupSeparatorMode) const+0x7b [0xb6e90f0b]
  /usr/lib/libQtCore.so.4 : QString::toLongLong(bool*, int) const+0x55 [0xb6eaa2c5]
  /usr/lib/libQtCore.so.4 : QString::toInt(bool*, int) const+0x33 [0xb6eaa3c3]
  qbittorrent : FilterParserThread::parseDATFilterFile(QString)+0x7fc [0x818933c]
  qbittorrent : FilterParserThread::run()+0x76 [0x818a606]
  /usr/lib/libQtCore.so.4 [0xb6e6496e]
  /lib/tls/i686/cmov/libpthread.so.0 [0xb7ba64ff]
  /lib/tls/i686/cmov/libc.so.6 : clone()+0x5e [0xb6c6b49e]

max@PCMAX:~$
---------------------------------------------------------------------------------------

Revision history for this message

Christophe Dumez (hydr0g3n) wrote on 2009-07-12:

I'll have a look at the faulty function. In the meantime, please stop using IP filter:
* edit file at ~/.config/qBittorrent/qBittorrent.conf
* remove line starting with "IPFilter\File="
* save file, and run qBittorrent.

Are you, by any chance, using 64bits? There was a bug in IPfilter code on 64bits architecture in v1.3.3 (which was fixed since then in v1.3.4).

If you could post you dat file here, I could test it too.

Changed in qbittorrent:
assignee:	nobody → Christophe Dumez (hydr0g3n)
status:	New → Confirmed

Revision history for this message

Christophe Dumez (hydr0g3n) wrote on 2009-07-12:

Il semble que vous soyez français :)

Je viens de jeter un coup d'oeil à la fonction et il cela ressemble beaucoup au bug sur 64bits que j'ai corrigé depuis dans la v1.3.4. Le patch a été appliqué au package de v1.3.3-2 de Ubuntu.

Concernant la version de votre paquet de qBittorrent: 1.3.3-1
Cela correspond au paquet qui ne comprend pas le patch pour 64bits.

cf. rapport de bug suivant:
https://bugs.launchpad.net/qbittorrent/+bug/371283

Le probleme est que je ne sais pas si la v1.3.3-2 a été ajouté a Ubuntu v9.04 ou pas. Je sais que le probleme est corrigé dans la v9.10 en tout cas.

Revision history for this message

Maxime Teissier (maxime-teissier) wrote on 2009-07-14:

ip filter .dat Edit (124.6 KiB, chemical/x-mopac-input)

Desactiver l'IP filter resoud le probleme: QBitTorrent demarre correctement.

je peux par contre utiliser Moblock pour le filtrage d'IP, donc pour moi le probleme est resolu!

je suis sur une machine 64-bit (AMD64 double coeur) mais j'execute une version 32-bit d'Ubuntu. Donc soit le probleme affecte aussi les versions 32-bits, soit c'est un probleme different...

Je resterais sur ubuntu 9.04 jusqu'a la release officielle de la 9.10 en octobre.

ci-joint mon ipfilter.dat - je ne sais plus trop d'ou il vient...

Merci pour la reponse rapide et n'hesitez pas si vous avez d'autres questions...

Revision history for this message

Christophe Dumez (hydr0g3n) wrote on 2009-07-15:

I tried your filter file and I noticed that a malformated IP address caused qBittorrent to crash. I made the parser more robust to avoid this kind of problem.

Changed in qbittorrent:
importance:	Undecided → Low
milestone:	none → 1.4.0
status:	Confirmed → Fix Committed
summary:	- qbittorrent refuse to start + qbittorrent crashes on start due to malformated line in IP filter file