On July 26, 2002 at 11:43 +0200, Dominik Vogt wrote: > > So, please post the responsible config file and describe exactly > what you are doing to provoke it. Since exposing a menu is part > of one of the core dumps, the problem may even be related *where* > you open the menus (they bounce off the right side and may overlap > their grandparents). Running Purify does not make much sense > without this information. The only info I have is that dynamic > menus (MissingSubmenuFunc) and multiple menu styles are involved. > It may be necessary that the autogenerated menus destroy > themselves after use.
I thought you have reproduced the crash already. I am at the university now and I don't have the responsible config here. I will post it together with a description tonight or tommorow. > > 3. mr = 135959280 135978328 135139680 > ... > > 1. mr = 135959280 135960248 209 > > ^^^ > > Look closely: it's not the mr->s->ms pointer that was trashed. > The mr->s pointer changed between the two invocations. This must > not happen unless the menu style was changed. So I do not change menu styles. But the pointer mr->s changes frequently and 135960248 seems to be a proper value. I will have a double check of this. > > The last debug statement was printed out shortly before the seg > > fault occured. But all pointers seem to be normal :-| Actually no > > idea what happend here. > > This case happens most times. > > Could be an attempt to access freed memory. That would be an explanation. According to my experience one can access freed memory without a segfault. An often made programmer mistake is to access memory which was alloced locally by a function and freed after its return. This happens to work in most cases. > Yes. Scatter these debug statements all over the > MenuInteraction() function. We might be able to hunt down the > statement that overwrites the mr->s pointer this way. I'll commit > a debug patch for this shortly. I will do some further checks. Maybe I am lucky ;-) Uwe -- +-------------------------------------------------- | Uwe Pross | mailto:[EMAIL PROTECTED] | http://www.tu-chemnitz.de/~uwp +-------------------------------------------------- -- Visit the official FVWM web page at <URL:http://www.fvwm.org/>. To unsubscribe from the list, send "unsubscribe fvwm-workers" in the body of a message to [EMAIL PROTECTED] To report problems, send mail to [EMAIL PROTECTED]
