linuxppc-dev.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
* IDMA freezes but with periodic printk() things work...
@ 2001-09-06 17:57 John Francis
  0 siblings, 0 replies; only message in thread
From: John Francis @ 2001-09-06 17:57 UTC (permalink / raw)
  To: linuxppc-embedded


Hello,

I am faced with very strange problem.

I have IDMA channel 1 that I am using to send
ethernet packets to external device. What I have seen
is if I try to transmit large amount of data at really
fast rate things IDMA transfer simply stops. However
if I do printk() after say every 10000 byte transfer
IDMA tranfer code works for days.

Has anybody seen this kind of behaviour before? What
are the possible reasons this might happen?

Any hints!!

John


** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2001-09-06 17:57 UTC | newest]

Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2001-09-06 17:57 IDMA freezes but with periodic printk() things work John Francis

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).