Date: Wed, 26 Apr 1995 17:37:53 -0700 (PDT) From: Poul-Henning Kamp <phk@ref.tfs.com> To: bde@zeta.org.au (Bruce Evans) Cc: dufault@hda.com, current@freefall.cdrom.com Subject: Re: panic: pmap_zero_page: CMAP busy Message-ID: <199504270037.RAA13949@ref.tfs.com> In-Reply-To: <199504260757.RAA10941@godzilla.zeta.org.au> from "Bruce Evans" at Apr 26, 95 05:57:58 pm
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> >The panic is caused by the difference between these two lines in > >the config: > > >>From GENERIC (works): > >> config kernel root on wd0 swap on wd0 and wd1 and wd2 and vn0 dumps on wd0 > > >>From DESMOND (panics): > >> config kernel root on wd0 swap on wd0 dumps on wd0 > > Maybe this has something to do with the bogus test for the end of > swdevt[] in i386/autoconf.c. The array is terminated by device NODEV > but device 0 is tested for (the test for > 0 degenerates to == 0 > because dev_t is unsigned). Apparently there are usually 0's sufficiently > close to the end of swdevt[] for there to be no problems. Be aware that the two termination entries are needed for diskless to work... -- Poul-Henning Kamp <phk@login.dknet.dk> -- TRW Financial Systems, Inc. 'All relevant people are pertinent' && 'All rude people are impertinent' => 'no rude people are relevant'
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