From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= Date: Tue, 10 May 2011 07:08:20 +0200 Subject: b43 error under heavy load In-Reply-To: <4CEAC095.7020706@lwfinger.net> References: <4CEAB969.20702@lwfinger.net> <1290451982.20888.2.camel@maggie> <4CEAC095.7020706@lwfinger.net> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Larry Finger , Juan Carlos Romero Cc: =?UTF-8?Q?Michael_B=C3=BCsch?= , b43-dev , wireless 2010/11/22 Larry Finger : > On 11/22/2010 12:53 PM, Michael B?sch wrote: >> On Mon, 2010-11-22 at 12:41 -0600, Larry Finger wrote: >>> Under heavy load with multiple streams, I'm getting errors from my BCM4312 >>> (14e4:4315) device as follows: >>> >>> b43-phy0 debug: TX-status contains invalid cookie: 0x0D4D >>> b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 76 >>> b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 78 >>> (and continues). >>> >>> Clearly that cookie is garbage as it has a slot number of 0. Any suggestions on >>> diagnostic information that I could dump to help debug this? >> >> I think that probably is a firmware or hardware bug. The affected >> kernel code was not changed in years, as far as I know. > > Thanks. I'll see if I can figure out a way for the driver to recover more > gracefully. In the meantime, I will be dumping the entire TX status struct to > see if that helps in seeing what is wrong. Larry, did you try debugging this? Juan noticed this issue on his 14e4:4315 as well. [ 854.826369] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 54 [ 854.827348] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 56 [ 854.828080] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 58 [ 854.831431] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 60 [ 854.831453] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 62 [ 854.832440] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 64 [ 854.833836] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 66 [ 854.834567] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 68 [ 854.834588] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 70 [ 854.835378] b43-phy0 debug: Out of order TX status report on DMA ring 1. Expected 74, but got 72 Connection is lost, reloading of the driver is needer. -- Rafa?