Date: Sun, 8 Dec 2002 11:22:31 +1030 From: Greg 'groggy' Lehey <grog@FreeBSD.org> To: Dan Nelson <dnelson@allantgroup.com> Cc: current@freebsd.org Subject: Re: New lock order reversal - "vnode interlock" Message-ID: <20021208005231.GD96646@wantadilla.lemis.com> In-Reply-To: <20021206212728.GC29693@dan.emsphone.com> References: <20021206212728.GC29693@dan.emsphone.com>
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On Friday, 6 December 2002 at 15:27:29 -0600, Dan Nelson wrote: > > I haven't seen this one reported yet. > > FreeBSD dan.emsphone.com 5.0-RC FreeBSD 5.0-RC #228: Thu Dec 5 17:28:33 CST 2002 dan@dan.emsphone.com:/usr/src/sys/i386/compile/DANSMP i386 > > lock order reversal > 1st 0xc2d454b0 vnode interlock (vnode interlock) @ ../../../ufs/ffs/ffs_snapshot.c:1876 > 2nd 0xc04255e0 vm page queue mutex (vm page queue mutex) @ ../../../kern/vfs_bio.c:1480 > acquiring duplicate lock of same type: "vnode interlock" > 1st vnode interlock @ ../../../ufs/ffs/ffs_snapshot.c:1876 > 2nd vnode interlock @ ../../../kern/vfs_subr.c:1610 I'm seeing a similar message from different locations: lock order reversal 1st 0xc19d15dc vnode interlock (vnode interlock) @ /src/FreeBSD/5-CURRENT-MONORCHID/src/sys/nfsclient/nfs_vnops.c:2629 2nd 0xc0538ae0 vm page queue mutex (vm page queue mutex) @ /src/FreeBSD/5-CURRENT-MONORCHID/src/sys/vm/vm_kern.c:424 This was a day or to ago: FreeBSD monorchid.lemis.com 5.0-RC FreeBSD 5.0-RC #1: Fri Dec 6 09:32:13 CST 2002 grog@monorchid.lemis.com:/usr/obj/src/FreeBSD/5-CURRENT-MONORCHID/src/sys/MONORCHID i386 The only differences from GENERIC are: options BREAK_TO_DEBUGGER options MSGBUF_SIZE=81920 options _KPOSIX_PRIORITY_SCHEDULING device snp #Snoop device - to look at pty/vty/etc.. Greg -- See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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