From owner-freebsd-hackers Sat Feb 7 20:13:23 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id UAA22502 for hackers-outgoing; Sat, 7 Feb 1998 20:13:23 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from sendero.simon-shapiro.org (sendero-fxp0.Simon-Shapiro.ORG [206.190.148.34]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id UAA22464 for ; Sat, 7 Feb 1998 20:12:40 -0800 (PST) (envelope-from shimon@sendero-fxp0.simon-shapiro.org) Received: (qmail 27311 invoked by uid 1000); 8 Feb 1998 04:18:57 -0000 Message-ID: X-Mailer: XFMail 1.3-alpha-012698 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Sat, 07 Feb 1998 20:18:57 -0800 (PST) Reply-To: shimon@simon-shapiro.org Organization: The Simon Shapiro Foundation From: Simon Shapiro To: "Bruce M. Walter" Subject: Re: Powering off the system/UPS Cc: John Fieber , Mike Smith , hackers@FreeBSD.ORG, Julian Elischer Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On 07-Feb-98 Bruce M. Walter wrote: >> If you dig into this mechanism, maybe you keep a scenario i see >> sometimes >> but have never managed to document properly: >> >> AFTER the dpt is called from at_shutdown, the system tries to sync >> disks. >> this synchronization obviously fails. I don't think I saw this during >> normal shutdown, but if you shutdown from the debugger, it can happen. > > Could this be data written to the dump device as a result of the > savectx/dumpsys calls from the RB_DUMP flag? Possible. I think the anomaly is always associated with either a debugger session, or a panic, or both. ---------- Sincerely Yours, Simon Shapiro Shimon@Simon-Shapiro.ORG Voice: 503.799.2313 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe hackers" in the body of the message