Date: Tue, 11 Jun 2002 10:52:53 -0400 (EDT) From: Jacob Ritorto <jritorto@pit.comms.marconi.com> To: freebsd-hardware@freebsd.org Subject: serial trouble on dell cpi 366 Message-ID: <Pine.GSO.4.42.0206111051290.2861-100000@gravel>
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Hi, I'm frequently losing bits on my laptop's serial port using FreeBSD 4.5-RELEASE and 5.0-CURRENT. The kernel frequently reports one more silo overflow (xx total) on the serial port. Both installations are generic kernels, though I did try cutting out superfluous devices in 5.0, but to no effect. 5.0 Seems to drop many more bits than 4.5, and 5.0 seems not to care how fast the transfer happens -- it loses data even at 2400 bps, while the 4.5-RELEASE usually only loses data at rates above 38400. Do people already know about this? Is there a bug filed yet? Any resolution / workaround? I use the machine (and camediaplay or gphoto -- same behaviour with both programs) to grab digital photos from my Olympus. The scheme worked fine on previous FreeBSD versions with my now defunct Intel machine.. Please advise as it seems to me that the kernel is having trouble getting around to servicing the serial port's requests, which I'm assuming denotes the kernel's failure to fully grok the uart or something like that.. thanks. -jake To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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