Date: Fri, 18 Jan 2008 03:11:45 -0600 From: "Scot Hetzel" <swhetzel@gmail.com> To: "Kip Macy" <kip.macy@gmail.com> Cc: freebsd-current@freebsd.org, Pawel Jakub Dawidek <pjd@freebsd.org> Subject: Re: panic: System call lstat returning with 1 locks held Message-ID: <790a9fff0801180111w2397d1edpc6cff2925e114ce7@mail.gmail.com> In-Reply-To: <b1fa29170801172348k3f4135d6y11ff3ef21af1ae09@mail.gmail.com> References: <790a9fff0801150552l542a4238ofc12efe5fdb45fc2@mail.gmail.com> <20080115143924.GB57756@deviant.kiev.zoral.com.ua> <790a9fff0801152301l5d50461aw3a253608506368e2@mail.gmail.com> <790a9fff0801161624g459857b8y6217e579337f2f0e@mail.gmail.com> <790a9fff0801161810j5a9953c4j5d2f3f10b3a1baf@mail.gmail.com> <20080117114023.GF8820@garage.freebsd.pl> <790a9fff0801172312o18d46a65x3be9c8f752f7845d@mail.gmail.com> <790a9fff0801172340p664b48c0m9a3b961ab2e7918f@mail.gmail.com> <b1fa29170801172348k3f4135d6y11ff3ef21af1ae09@mail.gmail.com>
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> On Jan 17, 2008 11:40 PM, Scot Hetzel <swhetzel@gmail.com> wrote: > > The panic didn't occur after lock order reversal 4, instead it occured > > after the system had displayed lock order reversal 2. > > > > hp010# /usr/local/etc/cvsup/update.sh & > > hp010# tail -f /var/log/cvsup.log > > : > > <lock order reversal 1> > > : > > <lock order reversal 3> > > : > > <lock order reversal 1> > > <lock order reversal 2> > > : > > <lock order reversal 4> > > : > > <lock order reversal 1> > > <lock order reversal 2> > > Edit CVSROOT-ports/modules,v > > : > > : > > Edit ports/audio/sonata/pkg-plist,v > > panic: System call lstat returning with 1 locks held > > cpuid = 0 > > KDB: enter: panic > > [ thread pid 996 tid 10011 ] > > stopped at kdb_enter+0x3d: movq $0,0x4ad188(%rip) > > db> show lockedvnods > > Locked vnodes > > db> > > On 1/18/08, Kip Macy <kip.macy@gmail.com> wrote: > What does: > Try > > ddb> show locks > It doesn't show any locks, I also tried show alllocks and nothing was displayed. When the panic occured this time, lock order reversal 4 didn't occur. Scot
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