hangs using 100% cpu on start

Bug #298354 reported by LimCore on 2008-11-15
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
kdesudo (Ubuntu)
Undecided
Unassigned

Bug Description

I start desktop (kde) and then kdesudo uses 100% cpu
Ubuntu 8.04 amd64 ; ii kdesudo 2.5.1-0ubuntu3

(gdb) bt
#0 0x000000000040ecf7 in QValueListPrivate<QString>::at ()
#1 0x000000000040f439 in ?? ()
#2 0x00007fe9444da1c4 in __libc_start_main () from /lib/libc.so.6
#3 0x00000000004087c9 in ?? ()
#4 0x00007fff5209a388 in ?? ()
#5 0x0000000000000000 in ?? ()

LimCore (limcore) wrote :

Thanks to debug symbols ( https://wiki.ubuntu.com/DebuggingProgramCrash )
now we can see:

0x000000000040ecfa in QValueListPrivate<QString>::at (this=0x6794c0, i=18446744073709551615) at /usr/share/qt3/include/qvaluelist.h:378
378 for( size_type x = 0; x < i; ++x )

(gdb) bt
#0 0x000000000040ecfa in QValueListPrivate<QString>::at (this=0x6794c0, i=18446744073709551615) at /usr/share/qt3/include/qvaluelist.h:378
#1 0x000000000040f439 in main (argc=3, argv=<value optimized out>) at /usr/share/qt3/include/qvaluelist.h:539

(gdb) print *this
$1 = {<QShared> = {count = 1}, node = 0x6794e0, nodes = 0}

The index in the list seems a bit wrong, lol.

meph (mike-meph) wrote :

This is responsible for a lot of flat laptop batteries.

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