Date: Mon, 14 Dec 2009 11:01:37 +0900 (JST) From: Yoshiaki Kasahara <kasahara@nc.kyushu-u.ac.jp> To: pyunyh@gmail.com Cc: freebsd-stable@freebsd.org Subject: Re: vge problem Message-ID: <20091214.110137.585114676083292120.kasahara@nc.kyushu-u.ac.jp> In-Reply-To: <20091211000848.GK10121@michelle.cdnetworks.com> References: <20091208180836.GL1366@michelle.cdnetworks.com> <20091210215249.GG10121@michelle.cdnetworks.com> <20091211000848.GK10121@michelle.cdnetworks.com>
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On Thu, 10 Dec 2009 16:08:49 -0800, Pyun YongHyeon <pyunyh@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@nc.kyushu-u.ac.jp
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