On Wed, Feb 01, 2006 at 10:47:52AM -0500, Andrew Gallatin wrote: > Pawel Jakub Dawidek [EMAIL PROTECTED] wrote: > > > > FreeBSD src repository > > > > Modified files: > > sys/kern kern_malloc.c > > share/man/man9 Makefile > > sys/conf NOTES files options > > Added files: > > share/man/man9 redzone.9 > > sys/vm redzone.c redzone.h > > Log: > > Add buffer corruption protection (RedZone) for kernel's malloc(9). > > It detects both: buffer underflows and buffer overflows bugs at runtime > > (on free(9) and realloc(9)) and prints backtraces from where memory was > > allocated and from where it was freed. > > > > If I enable DEBUG_REDZONE on an amd64 machine (UP, 512MB ram), > I get this panic on startup: > > FreeBSD 7.0-CURRENT #0: Tue Jan 31 17:17:41 EST 2006 > [EMAIL PROTECTED]:/usr/src/sys/amd64/compile/VENICEW > WARNING: WITNESS option enabled, expect reduced performance. > Memory modified after free 0xffffff0000006d00(248) val=5 @ 0xffffff0000006dd0 > kernel trap 9 with interrupts disabled
You can trigger this panic without the red zone stuff. See my string of post from yesterday. Something went into sys/ on 2006-01-26 that is causing the problems. I suspect the pts code, but can't prove it, yet. -- Steve _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
