https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203941
--- Comment #1 from Ed Maste <[email protected]> --- And for quick reference: /* * DTrace Toxic Ranges * * DTrace supports safe loads from probe context; if the address turns out to * be invalid, a bit will be set by the kernel indicating that DTrace * encountered a memory error, and DTrace will propagate the error to the user * accordingly. However, there may exist some regions of memory in which an * arbitrary load can change system state, and from which it is impossible to * recover from such a load after it has been attempted. Examples of this may * include memory in which programmable I/O registers are mapped (for which a * read may have some implications for the device) or (in the specific case of * UltraSPARC-I and -II) the virtual address hole. The platform is required * to make DTrace aware of these toxic ranges; DTrace will then check that * target addresses are not in a toxic range before attempting to issue a * safe load. */ -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "[email protected]"
