Okay, I was writing a rather lenghty reply for about 20 minutes, but it got erased, so maybe later.
you say address sensitive? hmm, maybe it was compiled with the old intel-8088 paging? :) On 5/1/07, Jon Elson <[EMAIL PROTECTED]> wrote: > Mario. wrote: > > Heisenbug. Surely ;-) > > Okay, I had similar problem in assembly, but that was probably > > hardware... I included a single NOP instruction which solved a lot of > > problems in a MCU by moving the rest of the program one instruction > > away. But one thing the disabled debug messages surely do is that it > > speeds up the program a bit and potantially makes it much more > > responsive due to cache size - when there is no debug, it cannot > > possibly take the valuable CPU cache. > Well, this shouldn't affect the operation of a correct program. > John Kasunich and I went over the relevant code last night and > we couldn't find any smoking guns in there. This driver reads > all the inputs at the beginning, and then writes all the outputs > at the end, so changes in the timing shouldn't affect anything. > I'm more afraid there is some very dark monster lurking, ie. > that something is address sensitive, and adding the debug > statements moves some piece of data to a different place, where > a haywire pointer can't find it. These can be the devil to > find, even in user-space C code, and an absolute nightmare in > kernel space. > > Jon > > ------------------------------------------------------------------------- > This SF.net email is sponsored by DB2 Express > Download DB2 Express C - the FREE version of DB2 express and take > control of your XML. No limits. Just data. Click to get it now. > http://sourceforge.net/powerbar/db2/ > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
