On Mon, Apr 04, 2016 at 09:02:49PM -0700, John Baldwin wrote: > kib@ fixed /dev/mem to handle addresses beyond the direct map limit to use > temporary mappings instead of failing with EFAULT in 277051 which was only > committed to HEAD last January, so well after 8.2.
The mmap(2) interface to /dev/mem did not have the issue ever. The problem was only with the read(2)/write(2) accesses. >From what I understand, since the goal of the OP was to measure BAR access latencies, read(2) (or write) is unsuitable for him for obvious reasons. _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
