linux-kernel - Re: xconfig segfault

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Date:	Mon, 20 Nov 2006 15:19:31 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Roman Zippel <zippel@...ux-m68k.org>
CC:	jes@...ined-monkey.org, Adrian Bunk <bunk@...sta.de>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: xconfig segfault

Roman Zippel wrote:
> Hi,
> 
> On Mon, 20 Nov 2006, Randy Dunlap wrote:
> 
>> I found the problem patch, but not the root cause.
>>
>> The xconfig segfault begins in 2.6.19-rc5-git3 (-git2 is OK).
>> A relatively simple Kconfig change causes it (but why?).
>>
>> (Note:  The running kernel doesn't matter, just which kernel tree
>> is being viewed/config-ed.)
>>
>> If I back out the patches below, -git3 (xconfig ^F find/search)
>> works for me.
> 
> I cannot reproduce this. Could you try to run qconf within gdb for a 
> backtrace (adding -g to HOST_EXTRACFLAGS might get more useful output).

Sure, let me know what you want next.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 46953334203536 (LWP 23635)]
0x00000000004289bc in ConfigMainWindow::searchConfig ()
(gdb) bt
#0  0x00000000004289bc in ConfigMainWindow::searchConfig ()
#1  0x0000000000428ae2 in ConfigMainWindow::qt_invoke ()
#2  0x00002ab42ab8b79c in QObject::activate_signal ()
   from /usr/lib64/libqt-mt.so.3
#3  0x00002ab42ab8c4b3 in QObject::activate_signal ()
   from /usr/lib64/libqt-mt.so.3
#4  0x00002ab42ae889b3 in QAction::qt_invoke () from /usr/lib64/libqt-mt.so.3
#5  0x00002ab42ab8b79c in QObject::activate_signal ()
   from /usr/lib64/libqt-mt.so.3
#6  0x00002ab42ae6d628 in QSignal::signal () from /usr/lib64/libqt-mt.so.3
#7  0x00002ab42aba42a5 in QSignal::activate () from /usr/lib64/libqt-mt.so.3
#8  0x00002ab42ab31a45 in QAccelPrivate::activate ()
   from /usr/lib64/libqt-mt.so.3
#9  0x00002ab42ab333e2 in QAccelManager::dispatchAccelEvent ()
   from /usr/lib64/libqt-mt.so.3
#10 0x00002ab42ab338fc in qt_dispatchAccelEvent () from /usr/lib64/libqt-mt.so.3
#11 0x00002ab42ab35d7a in QApplication::notify () from /usr/lib64/libqt-mt.so.3
#12 0x00002ab42ab31fce in QAccelManager::tryAccelEvent ()
   from /usr/lib64/libqt-mt.so.3
#13 0x00002ab42ab323ac in qt_tryAccelEvent () from /usr/lib64/libqt-mt.so.3
#14 0x00002ab42aadb39c in QETWidget::translateKeyEvent ()
   from /usr/lib64/libqt-mt.so.3
#15 0x00002ab42aadc180 in QApplication::x11ProcessEvent ()
   from /usr/lib64/libqt-mt.so.3
#16 0x00002ab42aaeb22f in QEventLoop::processEvents ()
   from /usr/lib64/libqt-mt.so.3
#17 0x00002ab42ab49691 in QEventLoop::enterLoop () from /usr/lib64/libqt-mt.so.3
#18 0x00002ab42ab4953a in QEventLoop::exec () from /usr/lib64/libqt-mt.so.3
#19 0x0000000000425e23 in main ()
(gdb) 

-- 
~Randy
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