[Konsole-devel] [Bug 233167] New: Konsole crash after commandline scrollback

[jozzek]

https://bugs.kde.org/show_bug.cgi?id=233167

           Summary: Konsole crash after commandline scrollback
           Product: konsole
           Version: 2.4.1
          Platform: Fedora RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: konsole-devel at kde.org
        ReportedBy: joze.klepec at siol.net


Application: konsole (2.4.1)
KDE Platform Version: 4.4.1 (KDE 4.4.1)
Qt Version: 4.6.2
Operating System: Linux 2.6.32.10-90.fc12.i686.PAE i686
Distribution: "Fedora release 12 (Constantine)"

-- Information about the crash:
Probable cause: Konsole buffer commandline over/underflow.

Line buffer is as I can remember 10000 lines in size, kept from previous KDE
versions (still from fc11 4.3.x), that's probably the most important piece of
information. It was set up to this size in 4.1 as this is quite fine solution
for me (I tend to forget things & tricks).

First, I ran in Konsole (by typing):

su -c " yum update --skip-broken --merge-conf"

This was succesfull, without any problems. Latest updatest I checked for were
yesterday and there were none on the list. After that:

blah# yum list ma* mb* mc* md* me* mf* mg* mh* mi* mj* mk* ml* mm* mn* mo* mp*
mq* mr* ms* mt* mu* mv* mw* mx* mz* m0* m1* m3* m4* m5* m6* m7* m8* m9*

To run this command, it was needed to dig around 20-30, maybe 40 steps back
into commandline buffer. When I was typing the next one, Konsole was on the
last printing line of the screen, but that probably doesn't matter as Konsole
had similar crashes which were internally somehow controlled, but cursor just
lost focus or buffer was partially eradicated (half of line or so). After
quiting/killing and restarting Konsole in such cases everything looked and went
fine. 

I assume that the best solution would be for now stop using Konsole (at least
latest and greatest hit) in drKonqi to install debuginfo. There should be used
at least far more tested barebone version.

Nice hunting.

 -- Backtrace:
Application: Konzola (konsole), signal: Aborted
[KCrash Handler]
#6  0x00871416 in __kernel_vsyscall ()
#7  0x00472a91 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#8  0x0047435a in abort () at abort.c:92
#9  0x00d57a77 in __gnu_cxx::__verbose_terminate_handler () at
../../../../libstdc++-v3/libsupc++/vterminate.cc:93
#10 0x00d558f6 in __cxxabiv1::__terminate (handler=0xd57910
<__gnu_cxx::__verbose_terminate_handler()>) at
../../../../libstdc++-v3/libsupc++/eh_terminate.cc:38
#11 0x00d55933 in std::terminate () at
../../../../libstdc++-v3/libsupc++/eh_terminate.cc:48
#12 0x00d559ec in __cxxabiv1::__cxa_rethrow () at
../../../../libstdc++-v3/libsupc++/eh_throw.cc:116
#13 0x07442787 in QEventLoop::exec (this=0xbfa55b74, flags=...) at
kernel/qeventloop.cpp:214
#14 0x07444ce7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#15 0x04588dd8 in QApplication::exec () at kernel/qapplication.cpp:3579
#16 0x00443c7e in kdemain (argc=1, argv=0xbfa55d54) at
/usr/src/debug/kdebase-4.4.1/apps/konsole/src/main.cpp:77
#17 0x080486dc in main (argc=1, argv=0xbfa55d54) at
/usr/src/debug/kdebase-4.4.1/i686-redhat-linux-gnu/apps/konsole/src/konsole_dummy.cpp:3

Possible duplicates by query: bug 218998, bug 190535.

Reported using DrKonqi

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