On Thu, Nov 24, 2011 at 07:35:23AM +0100, Rafał Miłecki wrote: > Huh, that sound interesting. So updating firmware fixed DMA issues for > you, right? Are you really sure you're using DMA?
Yeah, with the old firmware I had to force pio=1 to get it to work at all. With the new firmware I removed the module options and it works great, and there are no DMA errors in dmesg. The cpu usage also went from 100% to <10% > I didn't think Broadcom could fix something about DMA errors > (timeouts?) of LP-PHY in the recent firmware. Got me :-) Maybe it's not really a DMA error in the first place.. maybe the old firmware just has issues with this hardware that get detected as a DMA error but are really caused by a general failure somewhere else? > Is this still working fine for you? After that ~2 days? Yes! I built 3 of these laptops to run as wireless probes using https://github.com/justinazoff/wireless-probes so I have detailed logs.. 2011-11-24 08:49:33 check=DL avg_speed=1723 2011-11-24 08:55:01 check=DL avg_speed=2269 2011-11-24 09:00:28 check=DL avg_speed=1880 2011-11-24 09:05:57 check=DL avg_speed=2227 2011-11-24 09:11:24 check=DL avg_speed=1850 2011-11-24 09:16:52 check=DL avg_speed=2518 2011-11-24 09:22:18 check=DL avg_speed=1685 2011-11-24 09:27:48 check=DL avg_speed=1723 2011-11-24 09:33:17 check=DL avg_speed=2233 2011-11-24 09:38:44 check=DL avg_speed=2013 2011-11-24 09:44:11 check=DL avg_speed=1929 2011-11-24 09:49:39 check=DL avg_speed=1551 2011-11-24 09:51:30 check=DL avg_speed=1717 2011-11-24 09:56:59 check=DL avg_speed=1953 Before, it looked like this: 2011-11-19 06:19:41 check=DL avg_speed=856 2011-11-19 06:25:34 check=DL avg_speed=847 2011-11-19 06:31:30 check=DL avg_speed=858 2011-11-19 06:37:26 check=DL avg_speed=857 2011-11-19 06:43:20 check=DL avg_speed=853 2011-11-19 06:49:12 check=DL avg_speed=864 2011-11-19 06:55:08 check=DL avg_speed=857 2011-11-19 07:01:01 check=DL avg_speed=851 2011-11-19 07:06:54 check=DL avg_speed=854 2011-11-19 07:12:47 check=DL avg_speed=848 2011-11-19 07:18:41 check=DL avg_speed=856 2011-11-19 07:24:37 check=DL avg_speed=846 2011-11-19 07:30:32 check=DL avg_speed=854 -- -- Justin Azoff -- Network Security & Performance Analyst _______________________________________________ b43-dev mailing list [email protected] http://lists.infradead.org/mailman/listinfo/b43-dev
