Date: Tue, 28 Feb 2006 14:17:30 -0500 From: Kris Kennaway <kris@obsecurity.org> To: John Baldwin <jhb@freebsd.org> Cc: stable@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: panic: thread with borrowed priority returning to userland Message-ID: <20060228191729.GC84451@xor.obsecurity.org> In-Reply-To: <200602281207.38477.jhb@freebsd.org> References: <20060225141729.GK84519@xor.obsecurity.org> <200602281207.38477.jhb@freebsd.org>
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--R+My9LyyhiUvIEro Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 28, 2006 at 12:07:37PM -0500, John Baldwin wrote: > On Saturday 25 February 2006 09:17, Kris Kennaway wrote: > > Panic on 6.1-PRERELEASE (package build machine): > >=20 > > db> wh > > Tracing pid 85657 tid 100133 td 0xc2612600 > > kdb_enter(c06cabdd,c07250c0,c06cc327,cdca4cac,100) at kdb_enter+0x30 > > panic(c06cc327,2,c06cc3bf,267,2814d4e8) at panic+0xd5 > > sched_userret(c2612600,c04e290d,c0724dc0,1,2814d4e8) at sched_userret+0= x21 > > userret(c2612600,cdca4d38,63,100,1010000) at userret+0xd8 > > ast(cdca4d38) at ast+0x556 > > doreti_ast() at doreti_ast+0x17 > >=20 > > Core available. >=20 > Does this thread (tid 100133) hold any locks? That panic would > be indicative of that since it drops its inherited priority when it > releaes a contested mutex. See other followups for diagnosis. Kris --R+My9LyyhiUvIEro Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (FreeBSD) iD8DBQFEBKHHWry0BWjoQKURAqnPAKD+R8rqAZ+k4kMIfGqXdDP2N59oygCg+l7F FHbTuxkl51Aks+IxcfXlFwQ= =kCMw -----END PGP SIGNATURE----- --R+My9LyyhiUvIEro--
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