Date: Tue, 28 Feb 2006 12:07:37 -0500 From: John Baldwin <jhb@freebsd.org> To: Kris Kennaway <kris@obsecurity.org> Cc: stable@freebsd.org Subject: Re: panic: thread with borrowed priority returning to userland Message-ID: <200602281207.38477.jhb@freebsd.org> In-Reply-To: <20060225141729.GK84519@xor.obsecurity.org> References: <20060225141729.GK84519@xor.obsecurity.org>
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On Saturday 25 February 2006 09:17, Kris Kennaway wrote: > Panic on 6.1-PRERELEASE (package build machine): > > 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+0x21 > userret(c2612600,cdca4d38,63,100,1010000) at userret+0xd8 > ast(cdca4d38) at ast+0x556 > doreti_ast() at doreti_ast+0x17 > > Core available. 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. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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