Date: Tue, 9 Jul 2013 23:26:52 -0600 From: Warner Losh <imp@bsdimp.com> To: Adrian Chadd <adrian@freebsd.org> Cc: freebsd-mips@freebsd.org Subject: Re: mips74k and duplicate TLB entries Message-ID: <C607DDCE-E78A-4CB2-9FD6-141CBC04CFB7@bsdimp.com> In-Reply-To: <CAJ-Vmon-2ObHZd5QG9jM=6nK4E4wGwBYG5L4qcrnUV_ya_g=oQ@mail.gmail.com>
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So why are there three entries for things in kseg0? • #1 => ffffffff80000000 • Lo0 0 (0) • Lo1 17747 (0x5dd000) • #4 => ffffffff80006000 • Lo0 0 (0) • Lo1 1 (0) • #12 => ffffffff80016000 • Lo0 0 (0) • Lo1 173c7 (0x5cf000) • #14 => ffffffff8001a000 • Lo0 0 (0) • Lo1 7d087 (0x1f42000) • #19 => ffffffff80024000 • Lo0 0 (0) • Lo1 16947 (0x5a5000) • #22 => ffffffff8002a000 • Lo0 0 (0) • Lo1 17007 (0x5c0000) • #31 => ffffffff8003c000 • Lo0 0 (0) • Lo1 16f87 (0x5be000) and why are there two entries for 0xc0108000? • #5 => ffffffffc0108000 • Lo0 1b147 (0x6c5000) • Lo1 177c7 (0x5df000) • #29 => ffffffffc0108000 • Lo0 1b147 (0x6c5000) • Lo1 16b47 (0x5ad000) to two different PFNs no less, at least for the upper page? Warner On Jul 9, 2013, at 10:51 PM, Adrian Chadd wrote: > Hi all, > > I've started bringing up FreeBSD-HEAD on the AR9344 which is a MIPS > 74k core. It panics shortly after boot, in the invalidation code. > We've traced it down thus far to duplicate entries in the TLB. > > An example TLB list: > > http://pastebin.ca/2423778 > > Now, I think it's something in MipsDoTLBMiss or > MipsTLBInvalidException in exception.S. > > I'm out of my depth here. Could I please get some help in figuring out > what's going on? > > Thanks! > > > -adrian > _______________________________________________ > freebsd-mips@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-mips > To unsubscribe, send any mail to "freebsd-mips-unsubscribe@freebsd.org"home | help
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