From: Duncan Sands <baldrick@wanadoo.fr>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Fredrik Noring <noring@nocrew.org>,
Linux Kernel Development <linux-kernel@vger.kernel.org>,
Johannes Erdfelt <johannes@erdfelt.com>,
<linux-usb-devel@lists.sourceforge.net>
Subject: Re: 2.6.0-test4: uhci-hcd.c: "host controller process error", slab call trace
Date: Sun, 31 Aug 2003 11:15:24 +0200 [thread overview]
Message-ID: <200308311115.24188.baldrick@wanadoo.fr> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0308302248230.20207-100000@netrider.rowland.org>
> My feeling is that a reasonably large change may end up being the best
> thing to do. In particular, we probably only need to have one QH per
> queue, instead of one for each URB. But it'll be a while before that
> stuff gets done.
But won't that result in starvation of some endpoints in favour of those
with vast numbers of urbs queued on them? At the moment the per-urb
QHs mean that the hc works on only one urb per endpoint before moving
on to the next endpoint.
Ciao,
Duncan.
next prev parent reply other threads:[~2003-08-31 9:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-30 22:16 Fredrik Noring
2003-08-30 23:36 ` Duncan Sands
2003-08-31 2:58 ` Alan Stern
2003-08-31 9:15 ` Duncan Sands [this message]
2003-08-31 9:56 ` Fredrik Noring
2003-08-31 10:40 ` Duncan Sands
2003-09-02 21:19 ` Greg KH
2003-09-02 21:22 ` Johannes Erdfelt
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