vge problem
Yoshiaki Kasahara
kasahara at nc.kyushu-u.ac.jp
Mon Dec 14 02:01:40 UTC 2009
On Thu, 10 Dec 2009 16:08:49 -0800,
Pyun YongHyeon <pyunyh at gmail.com> said:
> While reading the code again I found some suspicious part which
> could be related with your issue. The controller's CMZ field has
> 3bits so it can handle 7 fragments of a TX frame. However,
> controller wants to see number of fragments + 1 in this field which
> means we can't use all 7 fragments in a TX descriptor. I changed
> the patch to reduce number of TX fragments to 6. Does the following
> patch make any difference for you?
> http://people.freebsd.org/~yongari/vge/vge.busdma.diff3
I'm sorry I was away from the console during last weekend....
Today I booted new kernel with diff3 patch, and did a couple of tests
(massive thumbnail loading and csup). All of them worked as expected
and no Send-Q stack observed, so I believe the problem is fixed by
this patch.
I really appreciate your swift update!
Regards,
--
Yoshiaki Kasahara
Research Institute for Information Technology, Kyushu University
kasahara at nc.kyushu-u.ac.jp
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