Date: Mon, 27 Jul 2009 09:25:03 +0200 From: Juergen Unger <lists@jpru.de> To: freebsd-current@freebsd.org, freebsd-fs@freebsd.org Subject: zfs: Fatal trap 12: page fault while in kernel mode Message-ID: <20090727072503.GA52309@jpru.ffm.jpru.de>
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--OXfL5xGRrasGEqWY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, I have one box where I am doing an zfs-receive job every five minutes for each of eleven zvols. Beside this no other service runs on this box. The system is an current checked out Jul 25 09:11 CET compiled with the following options: > include GENERIC > options KVA_PAGES=3D512 > options KDB > options DDB uname -a: > FreeBSD testbox 8.0-BETA2 FreeBSD 8.0-BETA2 #0: Sat Jul 25 21:43:42 CEST = 2009 root@testbox:/usr/obj/usr/src/sys/ZFS-DEBUG i386 loader.conf: > geom_mirror_load=3D"YES" > vm.kmem_size=3D"1536M" > vm.kmem_size_max=3D"1536M" > vfs.zfs.arc_max=3D"100M" > vfs.zfs.prefetch_disable=3D1 This runs quite well for a few hours but after max 20 to 30 hours I get this error: > Fatal trap 12: page fault while in kernel mode > cpuid =3D 0; apic id =3D 00 > fault virtual address =3D 0x4c > fault code =3D supervisor read, page not present > instruction pointer =3D 0x20:0x80883d93 > stack pointer =3D 0x28:0xfcd29b74 > frame pointer =3D 0x28:0xfcd29b94 > code segment =3D base 0x0, limit 0xfffff, type 0x1b > =3D DPL 0, pres 1, def32 1, gran 1 > processor eflags =3D interrupt enabled, resume, IOPL =3D 0 > current process =3D 36 (vnlru) > [thread pid 36 tid 100062 ] > Stopped at _sx_xlock+0x43: movl 0x10(%ebx),%eax > db> bt > Tracing pid 36 tid 100062 td 0x87166480 > _sx_xlock(3c,0,874aa28d,70f,8ae9a9f8,...) at _sx_xlock+0x43 > dmu_buf_update_user(0,8ae9a9f8,0,0,0,...) at dmu_buf_update_user+0x35 > zfs_znode_dmu_fini(8ae9a9f8,874b312d,1114,110b,879ab000,...) at zfs_znode= _dmu_f3 > zfs_freebsd_reclaim(fcd29c3c,1,0,8ec63754,fcd29c60,...) at zfs_freebsd_re= claim+0 > VOP_RECLAIM_APV(874b65a0,fcd29c3c,0,0,8ec637c8,...) at VOP_RECLAIM_APV+0x= a5 > vgonel(8ec637c8,0,80c77037,386,0,...) at vgonel+0x1a4 > vnlru_free(80f2a0f0,0,80c77037,300,3e8,...) at vnlru_free+0x2d5 > vnlru_proc(0,fcd29d38,80c652bc,33e,871932a8,...) at vnlru_proc+0x80 > fork_exit(8090d960,0,fcd29d38) at fork_exit+0xb8 > fork_trampoline() at fork_trampoline+0x8 > --- trap 0, eip =3D 0, esp =3D 0xfcd29d70, ebp =3D 0 --- > db>=20 any suggestions ? Juergen --OXfL5xGRrasGEqWY Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFKbVZOvt1rOHDRROsRAtmOAKDBBFERiQdhVC9sdqQGaVA9Vtq0CwCg95eR 72V/Qrx/IWVCVqkN/aM0W3w= =fmJg -----END PGP SIGNATURE----- --OXfL5xGRrasGEqWY--
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