From owner-freebsd-current@FreeBSD.ORG Tue Sep 28 15:06:42 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7A9D516A4CF for ; Tue, 28 Sep 2004 15:06:42 +0000 (GMT) Received: from harmony.village.org (rover.village.org [168.103.84.182]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8DB9043D41 for ; Tue, 28 Sep 2004 15:06:41 +0000 (GMT) (envelope-from imp@bsdimp.com) Received: from localhost (harmony.village.org [10.0.0.6]) by harmony.village.org (8.13.1/8.13.1) with ESMTP id i8SF3g4u097752; Tue, 28 Sep 2004 09:03:42 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Tue, 28 Sep 2004 09:04:57 -0600 (MDT) Message-Id: <20040928.090457.115908926.imp@bsdimp.com> To: gavin.atkinson@ury.york.ac.uk From: "M. Warner Losh" In-Reply-To: <1096380248.911.7.camel@buffy.york.ac.uk> References: <1096380248.911.7.camel@buffy.york.ac.uk> X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: David.Boyd@insightbb.com cc: nate@root.org cc: freebsd-current@freebsd.org Subject: Re: FDC/ACPI/GEOM problems X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Sep 2004 15:06:42 -0000 In message: <1096380248.911.7.camel@buffy.york.ac.uk> Gavin Atkinson writes: : On Mon, 2004-09-27 at 22:42, David Boyd wrote: : > Yes, I am tracking RELENG_5. : > : > The kernel build with the files you suggested resulted in the same hang. : > : > I filtered the commits by hour and then by 20 minutes intervals until I : > experienced the hang. : > : > The hang occurs after building the kernel with the follow commits: : > : > Edit src/sys/dev/fdc/fdc.c : > Add delta 1.283.2.1 2004.09.18.04.57.55 imp : > Edit src/sys/dev/fdc/fdc_acpi.c : > Add delta 1.2.2.2 2004.09.18.04.57.55 imp : > Edit src/sys/dev/fdc/fdc_isa.c : > Add delta 1.9.2.2 2004.09.18.04.57.55 imp : > Edit src/sys/dev/fdc/fdc_pccard.c : > Add delta 1.8.2.1 2004.09.18.04.57.55 imp : > Delete src/sys/dev/fdc/fdcreg.h : > Edit src/sys/dev/fdc/fdcvar.h : > Add delta 1.3.2.1 2004.09.18.04.57.55 imp : > Edit src/sys/sys/bio.h : > Add delta 1.139.2.1 2004.09.18.04.56.06 imp : > Edit src/sys/sys/fdcio.h : > Add delta 1.17.8.1 2004.09.18.04.57.55 imp : > : > I have some "free" time to pursue this now! : > I'll try almost anything you suggest. : > : > ------------------------------------------------ : > : > P.S. The system isn't actually dead...touching the power switch results in : > : > "ACPI: suspend request ignored (not ready yet)" : > : > as often as the power switch is depressed briefly. : : I have spent a little time today looking at this problem in more detail. : The hangs on BETA5 that several people have reported are indeed related : to the above file revisions. Apparently systems only hang with ACPI : enabled, and seem to hang in g_waitidle(), presumably waiting for the : floppy drive to become idle. : : db> tr 1 : sched_switch(c1501320,0,1) at sched_switch+0x14f : mi_switch(1,0) at mi_switch+0x264 : sleepq_switch(c08b7980,1,cbc81c90,c060ee72,c08b7980) at : sleepq_switch+0xe0 : sleepq_timedwait(c08b7980,0,0,0,0) at sleepq_timedwait+0x34 : msleep(c08b7980,0,68,c07f4bb1,14) at msleep+0x2ca : g_waitidle(c1500e00,c05e7600,0,cbc81d1c,c05e7652) at g_waitidle+0x48 : vfs_mountroot(0,c1500e00,c1501320,0,0) at vfs_mountroot+0x10 : start_init(0,cbc81d48,0,c05e7600,0) at start_init+0x52 : fork_exit(c05e7600,0,cbc81d48) at fork_exit+0xa4 : fork_trampoline() at fork_trampoline+0x8 : --- trap 0x1, eip = 0, esp = 0xcbc81d7c, ebp = 0 --- : : On my system, I can't prove that the issue is related to ACPI but others : have reported this issue goiung away with ACPI disabled. On my system, : the floppy drive LED comes on at the point of the hang. Having a floppy : disk in the drive makes no difference. Does removing the fd drive change things? The fdc worker thread is still there in that case... Warner