On 7 July 2014 11:28, John Hay <[email protected]> wrote: > On Mon, Jul 07, 2014 at 11:22:46AM -0700, Adrian Chadd wrote: >> On 7 July 2014 10:12, Ian Lepore <[email protected]> wrote: >> > On Mon, 2014-07-07 at 09:25 -0700, Adrian Chadd wrote: >> >> hi, >> >> >> >> That call is returning ENOMEM. I'm not sure why. It allocated an mbuf >> >> fine, but it couldn't allocate the DMA map. >> >> >> >> What's the output of "vmstat -z" ? I wonder if it's failing an allocation. >> >> >> >> >> >> >> >> -a >> > >> > Lack of bounce buffers is a posibility that won't show up in vmstat >> > output. >> >> right, but there's a bunch of already failing vmstat entries. >> >> >> John - there's a vmscale parameter somewhere. Hiren had to drop it >> down for his APs to work in 64MB of RAM. I think it's >> vm.kmem_size_scale . What's it say for you? >> > > :~ # sysctl vm.kmem_size_scale > vm.kmem_size_scale: 3
Ok. Search the archives for an email from Hiren titled "mbuf autotuning effect". TL;DR - set it to 1 and recompile. There's a kernel option somewhere to do exactly that. -a _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "[email protected]"
