Date: Thu, 24 May 2007 12:08:39 -0400 From: Joe Marcus Clarke <marcus@marcuscom.com> To: attilio@FreeBSD.org Cc: Jeff Roberson <jroberson@chesapeake.net>, jeff@FreeBSD.org, Current@FreeBSD.org Subject: Re: Panic on -CURRENT after LDT changes Message-ID: <1180022919.10757.24.camel@shumai.marcuscom.com> In-Reply-To: <4655D5C1.2010905@FreeBSD.org> References: <1179962663.75721.6.camel@shumai.marcuscom.com> <20070523165051.G9443@10.0.0.1> <4655D5C1.2010905@FreeBSD.org>
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--=-MEQOSqIpBgUlC3yJvumB Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Thu, 2007-05-24 at 20:13 +0200, Attilio Rao wrote: > Jeff Roberson wrote: > > Thanks, Attilio and I will look at this right away. > >=20 > > Jeff > >=20 > > On Wed, 23 May 2007, Joe Marcus Clarke wrote: > >=20 > >> On a -CURRENT build today with Jeff's LDT locking changes, I get an > >> instant, reproducible panic by doing: > >> > >> # cd /usr/src > >> # make -DNO_CLEAN buildworld > >> > >> Backing out the LDT changes to /sys/i386/i386/*machdep* corrects the > >> problem. Here is a dmesg and backtrace. In frame 6, it appears mdp i= s > >> NULL (i.e. td->td_proc->p_md =3D 0x0). >=20 > Did you enable WITNESS/INVARIANTS/INVARIANT_SUPPORT? No, this kernel does not have WITNESS or INVARIANTS. I can enable those tomorrow if that would give you more useful information. Joe --=20 PGP Key : http://www.marcuscom.com/pgp.asc --=-MEQOSqIpBgUlC3yJvumB Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQBGVbiGb2iPiv4Uz4cRAgD5AJ4uNUyu/YH4RanCW1txiglYK9UaEwCgkj8f kxfujJI9KdDihBoIXp0HwZg= =3Qov -----END PGP SIGNATURE----- --=-MEQOSqIpBgUlC3yJvumB--
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