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From: Ssagarr Patil <hugarsagar@outlook.com>
To: "linux-can@vger.kernel.org" <linux-can@vger.kernel.org>
Subject: C_CAN: can frame drops
Date: Wed, 23 Jul 2014 20:18:44 +0530	[thread overview]
Message-ID: <BAY176-W240BDB3FFF425370BF5B47D3FE0@phx.gbl> (raw)

Hi,

I am using the c_can driver for latest kernel and using the latest canutils to dump to a file.
My can bus is set at a rate of 1Mb (receiving 7000fps bus load of 80%).

When I use the candump tool to dump can frames I get following message,

'DROPCOUNT: dropped 2223 CAN frames on 'any' socket (total drops 1629092)'

SO to solve this problem if I use the -r option of candump and tried 
candump any -d -e -r 999999999 -l

If I do this the can frames are dropped in the driver ie I see 
this c_can_handle_lost_msg_obj() function being called frequently in which can frame
is overwritten.

How to solve this issue any pointers would be helpful.

Thanks,
--Sagar
 		 	   		  

             reply	other threads:[~2014-07-23 14:53 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-23 14:48 Ssagarr Patil [this message]
2014-07-23 16:04 ` C_CAN: can frame drops Oliver Hartkopp
2014-07-23 16:33   ` Ssagarr Patil
2014-07-24  7:40     ` Ssagarr Patil
2014-07-24 18:09       ` Oliver Hartkopp
2014-07-25  8:20         ` Ssagarr Patil
2014-07-25  7:17 ` Marc Kleine-Budde
2014-07-25  8:13   ` Ssagarr Patil
2014-07-25  8:16     ` Marc Kleine-Budde
2014-07-25  8:22       ` Ssagarr Patil
2014-07-25  8:27         ` Marc Kleine-Budde
2014-07-25  8:35           ` Ssagarr Patil
2014-07-25  8:48             ` Marc Kleine-Budde
2014-07-25  9:47               ` Ssagarr Patil
2014-07-25 10:10                 ` Marc Kleine-Budde
2014-07-25 11:22                   ` Ssagarr Patil
2014-07-25 10:43                 ` Oliver Hartkopp
2014-07-25 11:24                   ` Ssagarr Patil
2014-07-30 11:28                   ` Prabhakar Lad
2014-07-30 16:17                     ` Oliver Hartkopp
2014-07-31 12:41                       ` Ssagarr Patil
2014-07-31 12:42                         ` Marc Kleine-Budde
2014-07-31 14:11                           ` Oliver Hartkopp
2014-07-31 14:19                             ` Prabhakar Lad
2014-12-18  9:41                               ` [RFC] sched policies for candump Oliver Hartkopp
2014-12-18 12:33                                 ` Prabhakar Lad
2014-12-18 13:51                                   ` Oliver Hartkopp

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