Date: Sun, 26 Feb 1995 12:05:31 -0800 From: David Greenman <davidg@Root.COM> To: brian@mediacity.com (Brian Litzinger) Cc: freebsd-questions@FreeBSD.org Subject: Re: maxwait in if_ed.c not long enough Message-ID: <199502262005.MAA00692@corbin.Root.COM> In-Reply-To: Your message of "Sun, 26 Feb 95 09:24:09 PST." <m0rimhV-000rbtC@easynet.com>
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>I was not sure which group I should post this too, being somwhat new >to FreeBSD, so I thought I'd start here and hopefully get some direction >if this is not the correct place. > >I recent upgraded my LAPTOP from a DX2/66 to a DX4/100 and begin >getting > > ed1: remote transmit DMA failed to complete > >After a number of these messages, the system would freeze up. > >The problem seems to be related to 'maxwait' in the if_ed.c file. > >I changed the two lines which read: > > int maxwait = 100; /* about 120us */ > >to > > int maxwait = 100*100/66; /* about 120us */ > >and this seemed to remedy the problem. Thanks. 100*100/66 is 151. I instead doubled the count to 200 (240us) - this will hopefully handle extreme cases. -DG
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