Date: Tue, 30 Aug 2005 17:00:57 +0800 (CST) From: Xin LI <delphij@FreeBSD.org> To: FreeBSD-gnats-submit@FreeBSD.org Cc: kan@FreeBSD.org, jeff@FreeBSD.org Subject: kern/85466: [PANIC] mount_nullfs triggers locking against self Message-ID: <200508300900.j7U90vUZ076269@tarsier.delphij.net> Resent-Message-ID: <200508300910.j7U9AKt1099742@freefall.freebsd.org>
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>Number: 85466 >Category: kern >Synopsis: [PANIC] mount_nullfs triggers locking against self >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Aug 30 09:10:20 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Xin LI >Release: FreeBSD 6.0-BETA3 i386 >Organization: The GeekCN Community >Environment: System: FreeBSD tarsier.delphij.net 6.0-BETA3 FreeBSD 6.0-BETA3 #4: Mon Aug 29 03:51:10 CST 2005 delphij@tarsier.delphij.net:/usr/obj/usr/src/sys/TARSIER i386 FreeBSD 7.0-CURRENT affected as well. >Description: An easily reproducable panic can be triggered with mount_nullfs and mount_nfs. >How-To-Repeat: - Create two directories, say, /usr/ports and /mnt - do mount_nullfs /usr/ports /mnt - do mount_nfs something onto /usr/ports - do mount_nullfs /usr/ports /mnt - cd /mnt && ls, the system will panic immediately >Fix: I don't have a patchset to correct this (yet). >Release-Note: >Audit-Trail: >Unformatted:
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