Date: Tue, 25 Mar 2008 19:09:55 GMT From: Francois Ranchin <fyr@fyrou.net> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/122087: [zfs][lor] exclusive sleep mutex struct mount mtx Message-ID: <200803251909.m2PJ9t42073767@www.freebsd.org> Resent-Message-ID: <200803251920.m2PJK1LP082250@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 122087 >Category: kern >Synopsis: [zfs][lor] exclusive sleep mutex struct mount mtx >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue Mar 25 19:20:01 UTC 2008 >Closed-Date: >Last-Modified: >Originator: Francois Ranchin >Release: 7.0-STABLE >Organization: >Environment: FreeBSD noway.fyrou.net 7.0-STABLE FreeBSD 7.0-STABLE #0: Mon Mar 24 22:02:50 CET 2008 root@noway.fyrou.net:/usr/obj/usr/src/sys/NOWAY i386 >Description: Mar 24 23:14:31 noway kernel: lock order reversal: Mar 24 23:14:31 noway kernel: 1st 0xc6124804 struct mount mtx (struct mount mtx) @ /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:206 Mar 24 23:14:31 noway kernel: 2nd 0xc59cc010 sleep mtxpool (sleep mtxpool) @ /usr/src/sys/kern/kern_resource.c:1273 Mar 24 23:14:31 noway kernel: uma_zalloc_arg: zone "256" with the following non-sleepable locks held: Mar 24 23:14:31 noway kernel: exclusive sleep mutex struct mount mtx r = 0 (0xc6124804) locked @ /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:206 Mar 24 23:14:31 noway kernel: uma_zalloc_arg: zone "256" with the following non-sleepable locks held: Mar 24 23:14:31 noway kernel: exclusive sleep mutex struct mount mtx r = 0 (0xc6124568) locked @ /usr/src/sys/modules/zfs/../../compat/opensolaris/kern/opensolaris_vfs.c:206 This messages comes after the 14th march 2008. I have played from this date to 24th with a debug kernel for testing the age driver from Pyun. And nerver seen. csup the 24th, compiled and installed with debuging active and seen these messages. >How-To-Repeat: play with zfs, I have an hourly snapshot running. One of them become undestroyable without panicing . >Fix: >Release-Note: >Audit-Trail: >Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200803251909.m2PJ9t42073767>