Date: Mon, 28 Sep 2009 11:33:55 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Alan Cox <alc@cs.rice.edu> Cc: Attilio Rao <attilio@freebsd.org>, alc@freebsd.org, freebsd-stable@freebsd.org, John Baldwin <jhb@freebsd.org> Subject: Re: 8.0-RC1 panic attaching ppc Message-ID: <200909281134.04010.doconnor@gsoft.com.au> In-Reply-To: <4ABE81C5.2010009@cs.rice.edu> References: <200909232322.51060.doconnor@gsoft.com.au> <200909260824.39985.doconnor@gsoft.com.au> <4ABE81C5.2010009@cs.rice.edu>
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--nextPart4100493.3fxinGoSVp Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Sun, 27 Sep 2009, Alan Cox wrote: > Ok, now I can explain what is happening. The kernel is using 1GB > pages to implement the direct map. Unfortunately, pmap_extract() > doesn't know how to handle a 1GB page mapping. pmap_kextract() only > works by an "accident" of its different implementation. In other > words, it should not be relied upon to work either. > > Please revert whatever patch John gave you and try the attached > patch. It simply disables the use of 1GB page mapping by the direct > map. Your patch fixes (works around?) the problem. Thanks! =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart4100493.3fxinGoSVp Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iD8DBQBKwBmT5ZPcIHs/zowRAuikAJ95euy19sljjEcBrw61Jx7nqlOLxwCdGaw/ /b05TgGFQm3qIN8vXBWZp08= =n7Xh -----END PGP SIGNATURE----- --nextPart4100493.3fxinGoSVp--
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