From owner-freebsd-scsi@FreeBSD.ORG Mon Aug 22 21:11:03 2011 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 820EE10656DA; Mon, 22 Aug 2011 21:11:03 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68]) by mx1.freebsd.org (Postfix) with ESMTP id 034048FC1B; Mon, 22 Aug 2011 21:11:02 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by woozle.rinet.ru (8.14.4/8.14.4) with ESMTP id p7MKv56H036189; Tue, 23 Aug 2011 00:57:05 +0400 (MSD) (envelope-from marck@rinet.ru) Date: Tue, 23 Aug 2011 00:57:05 +0400 (MSD) From: Dmitry Morozovsky To: Kostik Belousov In-Reply-To: Message-ID: References: <20110822194031.GR17489@deviant.kiev.zoral.com.ua> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) X-NCC-RegID: ru.rinet X-OpenPGP-Key-ID: 6B691B03 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (woozle.rinet.ru [0.0.0.0]); Tue, 23 Aug 2011 00:57:05 +0400 (MSD) Cc: freebsd-scsi@freebsd.org, mav@freebsd.org, re@freebsd.org Subject: Re: Documentating patch for defaults/loader.conf X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Aug 2011 21:11:03 -0000 On Tue, 23 Aug 2011, Dmitry Morozovsky wrote: > On Mon, 22 Aug 2011, Kostik Belousov wrote: > > > > any objections for this simple patch? > > > > > > (we stumped into this yesterday, and no easy founded answers even on Google > > > except the single FreeBSD Forums thread was found) > > > > I do not think that the wording in right, but I am not CAM expert by any > > measure. From my reading of the code, it is a hook to delay the root mount, > > not to delay CAM bus registration. It would be better if you get the scsi@ > > or mav@ (author of the tunable) review. > > I based the comment on existing comment to the tunable in cam_xpt.c: > > cam_xpt.c:TUNABLE_INT("kern.cam.boot_delay", &xsoftc.boot_delay); > cam_xpt.c:SYSCTL_INT(_kern_cam, OID_AUTO, boot_delay, CTLFLAG_RDTUN, > cam_xpt.c: &xsoftc.boot_delay, 0, "Bus registration wait time"); > > > Alexander, colleagues, your thought on the following patch? [reply by mav@ viewed on web archives, but lost somewhere] Well, what about the following wording then? marck@woozle:~/FreeBSD/svn/head/sys> svn diff Index: boot/forth/loader.conf =================================================================== --- boot/forth/loader.conf (revision 224542) +++ boot/forth/loader.conf (working copy) @@ -109,6 +109,8 @@ #kern.ncallout="" # Set the maximum # of timer events #kern.ngroups="1023" # Set the maximum # of supplemental groups #kern.sgrowsiz="" # Set the amount to grow stack +#kern.cam.boot_delay="10000" # Delay (in ms) for CAM bus registration, + # useful for USB sticks as root #kern.cam.scsi_delay="2000" # Delay (in ms) before probing SCSI #kern.ipc.maxsockets="" # Set the maximum number of sockets avaliable #kern.ipc.nmbclusters="" # Set the number of mbuf clusters -- Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck@FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------