From owner-freebsd-current Thu Jun 21 22: 7:32 2001 Delivered-To: freebsd-current@freebsd.org Received: from white.dogwood.com (white.dogwood.com [63.96.228.130]) by hub.freebsd.org (Postfix) with ESMTP id 551DB37B403; Thu, 21 Jun 2001 22:07:30 -0700 (PDT) (envelope-from dave@dogwood.com) Received: (from dave@localhost) by white.dogwood.com (8.11.3/8.11.3) id f5M57TT94014; Thu, 21 Jun 2001 22:07:29 -0700 (PDT) (envelope-from dave) From: Dave Cornejo Message-Id: <200106220507.f5M57TT94014@white.dogwood.com> Subject: Re: SCSI hangs w/SuperMicro 6010H In-Reply-To: "from John Baldwin at Jun 21, 2001 03:56:36 pm" To: John Baldwin Date: Thu, 21 Jun 2001 22:07:29 -0700 (PDT) Cc: freebsd-current@FreeBSD.org X-Mailer: ELM [version 2.4ME+ PL88 (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG John Baldwin wrote: > Actuually, KTR is your friend here. :) Read the ktr(4) manpage, then compile a > kernel with KTR_MASK and KTR_COMPILE set to KTR_INTR|KTR_PROC. Then when it > hangs, break into DDB and look at the longs via 'show ktr' to see if you can > locate any interrutps coming in from ahc0 or ahc1. Okay - fired up the box, built a kernel off of a 6/18 source snapshot, and it hangs in about the same place - however what I get that as soon as I touch a key to invoke the debugger from the console, it continues merrily booting and I can't break into DDB until way past the problem. In my mind this kind of confirms something is busted in the interrupts. Tried looking back through the show ktr output and I'm not 100% clear on what it all means - I guess I'm interested in the ithread stuff and the only thing I ever see is swi6: tty:sio+ in the trace buffer besides what appears to be normal process rescheduling (?) which is mostly idle task time... Do think there's any use to rolling my source tree back a ways and compiling a kernel? thanks, dave c -- Dave Cornejo @ Dogwood Media, Fremont, California (also dcornejo@ieee.org) "There aren't any monkeys chasing us..." - Xochi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message