From owner-freebsd-current Thu Mar 23 12:20:42 1995 Return-Path: current-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id MAA19871 for current-outgoing; Thu, 23 Mar 1995 12:20:42 -0800 Received: from estienne.cs.berkeley.edu (estienne.CS.Berkeley.EDU [128.32.42.147]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id MAA19865 for ; Thu, 23 Mar 1995 12:20:41 -0800 Received: from localhost (localhost [127.0.0.1]) by estienne.cs.berkeley.edu (8.6.9/8.6.9) with SMTP id MAA04720; Thu, 23 Mar 1995 12:20:24 -0800 Message-Id: <199503232020.MAA04720@estienne.cs.berkeley.edu> X-Authentication-Warning: estienne.cs.berkeley.edu: Host localhost didn't use HELO protocol To: "matthew c. mead" cc: current@FreeBSD.org Subject: Re: Adaptec 2940 In-reply-to: Your message of "Thu, 23 Mar 1995 13:26:46 EST." <199503231826.NAA07649@goof.com> Date: Thu, 23 Mar 1995 12:20:24 -0800 From: "Justin T. Gibbs" Sender: current-owner@FreeBSD.org Precedence: bulk > Are there problems with the adaptec 2940 driver in current? I can't get i >t >to work properly with a P5-90, 32M ram, Mach 64 PCI card and a PCI Adaptec 294 >0 >SCSI controller. > > There may be some problems with a race condition during probe. This is something I'm working on right now. It seems that, although the driver is told to poll for its interrupts, interrupts are not masked, and the driver gets totally confused when it polls and finds an interrupt waiting, but finds the SCB that caused the condition to be gone (handled by the interrupt handler in response to the unmasked interrupt). My quick hack is to not register the card's interrupt handler until after we attach all scsi devices, but I still run into problems when attempting to share interrupts between two controllers. I'll post to the list once I get something more robust working. > >-matt > >-- >Matthew C. Mead -> Virginia Tech Center for Transportation Research - > -> Multiple Platform System and Network Administration >Work Related -> mmead@ctr.vt.edu | mmead@goof.com <- All Other >---- ------- WWW -> http://www.goof.com/~mmead --- ----- -- Justin T. Gibbs ============================================== TCS Instructional Group - Programmer/Analyst 1 Cory | Po | Danube | Volga | Parker | Torus ==============================================