From mboxrd@z Thu Jan 1 00:00:00 1970 From: William Bourque Date: Wed, 01 Jun 2011 23:40:44 -0400 Subject: Request for testing b43 & Broadcom 14e4:4315 cards for DMA ERRORs (Linux 3.0) In-Reply-To: References: Message-ID: <4DE7063C.4010002@polymtl.ca> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: b43-dev@lists.infradead.org Hello On 30/05/11 03:22 AM, Rafa? Mi?ecki wrote: > Hello everybody, > > I believe I've grabbed e-mails of all the people reporting DMA errors > on b43/bcm43xx mailing list. > > Short remind of the problem. When using b43 and LP-PHY card on some > specific machines you got: > b43-phy0 ERROR: Fatal DMA error: 0x00000800, 0x00000000, 0x00000000, > 0x00000000, 0x00000000, 0x00000000 > b43-phy0: Controller RESET (DMA error) ... > > The workaround was to use PIO instead of DMA, or "modprobe wl && rmmod wl". > > I believe we've fixed that errors in Linux 3.0-rc1. Can you give it a > chance and report back? > Sorry about the late report, I was short on time this week. This patch seems to fix the problem perfectly, I am transfering at full speed (~2MB/sec... kinda slow, though) since 2 hours and the card handle it perfectly. Nothing in the log, not even warning so I guess this is it! Big thanks to you, Rafa?, good work! - William