On 26.11.2012 15:03, Jakub Jermar wrote: > On 26.11.2012 9:19, Jakub Jermar wrote: >> Hi Petr, >> >> On 11/26/2012 03:13 AM, Petr Koupý wrote: >>> Hello, >>> >>> there seems to be some peculiar memory corruption causing tetris to crash >>> on ia32 build. When you launch the tetris and press 's' to start >>> playing, it >>> crashes either immediately or after drawing part of the playing board. >>> Kernel >>> console reveals that tetris tried to access some strange unmapped >>> memory area >>> when accessing statically allocated data structures through pointer in >>> 'place' >>> or 'fits_in' functions. It seems to affect all the recent mainline >>> revisions, >>> at least from 1710 and above. >>> >>> Are you able to reproduce it? Could it perhaps be somehow linked to >>> recent >>> improvements of memory management and guard pages? >> >> I can reproduce this. I am already back at revision 1699 and the problem >> is still reproducible, so the recent memory management improvements are >> most likely not guilty. > > To be more precise, this crash started to be reproducible as of mainline > revision 1666, which merged the cmos rtc-clock.
Fixed in mainline,1724. Btw., the POSIX random() interface is kind of brain-damaged. It is declared to return long int, but may only return non-negative numbers. And is not reentrant. This is a good candidate for replacing with something better. Jakub _______________________________________________ HelenOS-devel mailing list [email protected] http://lists.modry.cz/cgi-bin/listinfo/helenos-devel
