From owner-freebsd-hardware Tue Jun 11 7:53:13 2002 Delivered-To: freebsd-hardware@freebsd.org Received: from mailgate.pit.comms.marconi.com (mailgate.pit.comms.marconi.com [169.144.68.6]) by hub.freebsd.org (Postfix) with ESMTP id F32D837B406 for ; Tue, 11 Jun 2002 07:53:02 -0700 (PDT) Received: from mailman.pit.comms.marconi.com (mailman.pit.comms.marconi.com [169.144.2.12]) by mailgate.pit.comms.marconi.com (8.9.3/8.9.3) with ESMTP id KAA08424 for ; Tue, 11 Jun 2002 10:53:00 -0400 (EDT) Received: from sol.eng.fore.com (sol.pit.comms.marconi.com [169.144.155.73]) by mailman.pit.comms.marconi.com (8.9.3/8.9.3) with ESMTP id KAA09286 for ; Tue, 11 Jun 2002 10:52:55 -0400 (EDT) Received: from gravel.fore.com (gravel [169.144.54.125]) by sol.eng.fore.com (8.8.8/8.8.8) with ESMTP id KAA27109 for ; Tue, 11 Jun 2002 10:52:54 -0400 (EDT) Received: from localhost (jritorto@localhost) by gravel.fore.com (8.10.2+Sun/8.10.2) with ESMTP id g5BEqsH15278 for ; Tue, 11 Jun 2002 10:52:54 -0400 (EDT) X-Authentication-Warning: gravel.fore.com: jritorto owned process doing -bs Date: Tue, 11 Jun 2002 10:52:53 -0400 (EDT) From: Jacob Ritorto X-X-Sender: jritorto@gravel To: freebsd-hardware@freebsd.org Subject: serial trouble on dell cpi 366 Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org 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