Date: Mon, 5 Oct 2009 22:58:55 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Michio Karl Jinbo <michio.jinbo@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: pmap_invalidate_cache_range() panic on Xen Server Message-ID: <20091005195855.GC2259@deviant.kiev.zoral.com.ua> In-Reply-To: <20091005072515.3622.22FF24F1@gmail.com> References: <200910041220.n94CKxTH073639@svn.freebsd.org> <20091005072515.3622.22FF24F1@gmail.com>
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--5wdX5gfZV4kojQYf Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Oct 05, 2009 at 07:25:18AM +0900, Michio Karl Jinbo wrote: > On Sun, 4 Oct 2009 12:20:59 +0000 (UTC) > Konstantin Belousov <kib@FreeBSD.org> wrote: >=20 > > Log: > > MFC r197663: > > As a workaround, for Intel CPUs, do not use CLFLUSH in > > pmap_invalidate_cache_range() when self-snoop is apparently not repor= ted > > in cpu features. > > =20 > > Approved by: re (bz, kensmith) >=20 > I was tested r197663/r197744, but kernel panic again on Citrix Xen Server. >=20 > using 8.0-RC1 install cd, results are > 1. INTEL SU9400+HYPER-V(Windows2008 R2) -> boot OK. > 2. AMD Athlon X2 TK-55+HYPER-V(Windows2008 R2) -> boot NG. > 3. AMD PhenomII 940BK+Citrix Xen Server -> boot NG. >=20 > I think INTEL CPUs are no problem, but AMD CPUs appear the problem. So I = tested > the following patch, kernel boot was successed on recent 9-CURRENT and en= vironment 3. >=20 > sorry, poor English. Does the GENERIC kernel after r197744 boots on your plain hardware, without any hypervisor ? Also, please provide the lines from dmesg with CPU features lists, both from boot on plain hardware and under XEN. --5wdX5gfZV4kojQYf Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (FreeBSD) iEYEARECAAYFAkrKT/8ACgkQC3+MBN1Mb4jOEwCfVs0jXDaMjfTRkvzQZ/PmEIB+ D+QAnRuyD/Hsgbdrvx8uCqjB/FxRRaio =WBCb -----END PGP SIGNATURE----- --5wdX5gfZV4kojQYf--
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