From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3AAB1146.C39B35A1@mvista.com> Date: Sat, 10 Mar 2001 21:46:46 -0800 From: Frank Rowand Reply-To: frowand@mvista.com MIME-Version: 1.0 To: David Blythe Cc: linuxppc-embedded@lists.linuxppc.org Subject: Re: MMU_init buglet in 2.4.0-mvista_010216 References: <3AAB06CC.F5E5A5BA@routefree.com> Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: David Blythe wrote: > > memory sizes > 16M but not a multiple of 16M not quite right. for the > 24M config i was playing with it manifests itself as a tlb miss/kernel > stack overflow. > > patch attached. > david > > ------------------------------------------------------------------------------------------------------------------------------------ > Index: arch/ppc/mm/init.c > =================================================================== > diff -u -r1.1.1.4 init.c > --- arch/ppc/mm/init.c 2001/02/21 00:52:57 1.1.1.4 > +++ arch/ppc/mm/init.c 2001/03/11 04:52:27 > @@ -1015,7 +1015,7 @@ > /* ----- pin 4MB chunks of memory ----- */ > > if (size_pinned < size_DRAM) { > - pinned_tlbs = ((size_DRAM - size_pinned) / SIZE_4MB); > + pinned_tlbs += ((size_DRAM - size_pinned) / SIZE_4MB); > > if (pinned_tlbs > PPC4xx_MAX_PINNED_TLB) { > printk(KERN_ERR "MMU_init(): memory configuration requires %d tlb entries.\n", Thank you David, I merged your fix. -Frank -- Frank Rowand MontaVista Software, Inc ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/