Date: Mon, 20 Sep 2004 09:51:03 -0500 From: Scot Hetzel <swhetzel@gmail.com> To: Justin Smith <jsmith@drexel.edu> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: System hangs on DVD device Message-ID: <790a9fff04092007518d6995e@mail.gmail.com> In-Reply-To: <414D5029.4040407@drexel.edu> References: <414D5029.4040407@drexel.edu>
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On Sun, 19 Sep 2004 05:23:53 -0400, Justin Smith <jsmith@drexel.edu> wrote: > FreeBSD jsmith.org 5.3-BETA4 FreeBSD 5.3-BETA4 #0: Fri Sep 17 03:00:30 > EDT 2004 root@:/usr/obj/usr/src/sys/MYKERNEL i386 > > When I try to boot, I get (after a while) > > acd1: DVDROM <JLMS DVD-ROM LTD-166S/DS08> at ata1-slave UDMA40 > > and then > > ATAPI-RESET time = 50us > ATAPI-RESET time = 180us > > endlessly repeated. I can only boot the system after unplugging the DVD > drive. > > Any suggestions? > My CD-ROM drive will hang the system when booted from a kernel with no debugging options enabled. Try booting a kernel with the following debugging options enabled. makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols # Debugging for use in -current options KDB # Enable kernel debugger support. options DDB # Support DDB. options GDB # Support remote GDB. options INVARIANTS # Enable calls of extra sanity checking options INVARIANT_SUPPORT # Extra sanity checks of internal structures, required by INVARIANTS options WITNESS # Enable checks to detect deadlocks and cycles options WITNESS_SKIPSPIN # Don't run witness on spinlocks for speed
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