From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Pellegrini <mikep86@gmail.com>
Subject: Re: =?utf-8?b?cGNoX2Nhbjo=?= Data transmission stops after dropped packet
Date: Wed, 21 Nov 2012 17:43:35 +0000 (UTC)
Message-ID: <loom.20121121T184014-391@post.gmane.org>
References: <loom.20121114T160521-534@post.gmane.org> <50A4972A.9070707@hartkopp.net> <50A4EA87.9020206@grandegger.com> <loom.20121115T171319-854@post.gmane.org> <50A55C65.2020003@grandegger.com> <loom.20121115T222748-977@post.gmane.org> <50A95FC1.3050907@grandegger.com> <loom.20121119T155735-163@post.gmane.org> <50AA4FB3.7070009@grandegger.com> <loom.20121119T171647-35@post.gmane.org> <50AA5EE6.6060105@grandegger.com> <loom.20121119T183819-427@post.gmane.org> <50AA86DB.7000506@grandegger.com> <loom.20121119T211403-520@post.gmane.org> <50AAA8C8.2080504@grandegger.com> <loom.20121120T151831-134@post.gmane.org> <50ABABDE.8060503@grandegger.com> <loom.20121120T192159-770@post.gmane.org> <50ABF09C.8040303@grandegger.com> <50ACABE2.2020306@grandegger.com> <loom.20121121T160744-278@post.gmane.or
   g> <loom.20121121T162041-774@post.gmane.org> <50ACF9C0.8050206@grandegger.com> <loom.20121121T170446-911@post.gmane.org> <50AD042B.3020305@grandegger.com>
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Wolfgang Grandegger <wg <at> grandegger.com> writes:

> Could you show the sequence? I need to lookup the meaning of the bits.

I tried to capture the transition from functional to non-functional transmission
in dmesg, but the data gets logged too quickly.  Here's the best I can do:

Functional transmission:

[74734.413300] c_can_isr: irqstatus=0x15
[74734.441193] c_can_isr: irqstatus=0x8000
[74734.441265] c_can_isr: irqstatus=0x16
[74734.451140] c_can_isr: irqstatus=0x8000
[74734.451196] c_can_isr: irqstatus=0x17
[74734.461468] c_can_isr: irqstatus=0x8000
[74734.461523] c_can_isr: irqstatus=0x18
[74734.470794] c_can_isr: irqstatus=0x8000
[74734.470846] c_can_isr: irqstatus=0x19
[74734.488507] c_can_isr: irqstatus=0x8000
[74734.488567] c_can_isr: irqstatus=0x1a
[74734.500074] c_can_isr: irqstatus=0x8000
[74734.500127] c_can_isr: irqstatus=0x1b
[74734.515078] c_can_isr: irqstatus=0x8000
[74734.515133] c_can_isr: irqstatus=0x1c
[74734.543469] c_can_isr: irqstatus=0x8000
[74734.543509] c_can_isr: irqstatus=0x1d
[74734.553434] c_can_isr: irqstatus=0x8000
[74734.553484] c_can_isr: irqstatus=0x1e

Non-functional transmission:

[74553.334110] c_can_isr: irqstatus=0x16
[74553.334135] c_can_isr: irqstatus=0x16
[74553.334161] c_can_isr: irqstatus=0x16
[74553.334185] c_can_isr: irqstatus=0x16
[74553.334209] c_can_isr: irqstatus=0x16
[74553.334262] c_can_isr: irqstatus=0x16
[74553.334290] c_can_isr: irqstatus=0x16
[74553.334316] c_can_isr: irqstatus=0x16
[74553.334342] c_can_isr: irqstatus=0x16
[74553.334368] c_can_isr: irqstatus=0x16
[74553.334396] c_can_isr: irqstatus=0x16
[74553.334422] c_can_isr: irqstatus=0x16
[74553.334448] c_can_isr: irqstatus=0x16
[74553.334474] c_can_isr: irqstatus=0x16
[74553.334499] c_can_isr: irqstatus=0x16
[74553.334525] c_can_isr: irqstatus=0x16

- Mike