Date: Fri, 6 Nov 2009 18:40:03 GMT From: Patrick Lamaiziere <patfbsd@davenulle.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/140338: FreeBSD 8.0 RC2 with vm.pmap.pg_ps_enabled=1 kernel panic with makeworld Message-ID: <200911061840.nA6Ie3bW031902@freefall.freebsd.org>
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The following reply was made to PR kern/140338; it has been noted by GNATS. From: Patrick Lamaiziere <patfbsd@davenulle.org> To: bug-followup@FreeBSD.org <bug-followup@FreeBSD.org> Cc: Kai Gallasch <gallasch@free.de> Subject: Re: kern/140338: FreeBSD 8.0 RC2 with vm.pmap.pg_ps_enabled=1 kernel panic with makeworld Date: Fri, 6 Nov 2009 19:36:54 +0100 Le Fri, 6 Nov 2009 17:28:40 GMT, Kai Gallasch <gallasch@free.de> : Hello, > ZFS filesystem version 13 > ZFS storage pool version 13 It seems you are using ZFS on this box? Well, I saw a similar this issue with 8.0 BETA 4/i386 but only with ZFS. Here it's 100% reproductible when I want to copy my /usr on a ZFS tank : tar cf - -C /usr . |=A0tar xpvf - -C /pool I was not able to dump the panic but the trace was : panic vm_fault : fault on no fault entry free() zfs_acl_node_free() zfs_acl_release_nodes() zfs_acl_free() zfs_zaccesss() zfs_freebsd_create() VOP_CREATE_APV() vn_open_read() vn_open() kern_openat() kern_open() open() syscall (open()) I saw this panic in the write() syscall too, always when freeing something. On the same box, I've used super-pages for a longtime on FreeBSD 7.2 and with 8.0/BETA without any problem (but without ZFS too). Since I've turned off super-pages, ZFS is stable. Regards. (I'm sorry to no be able to provide more useful informations)
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