I upgraded my 280R system to yesterday''s nightly build, and when I rebooted, this happened: Boot device: /pci at 8,600000/SUNW,qlc at 4/fp at 0,0/disk at w2100002037e9abe4,0:a File and args: SunOS Release 5.11 Version snv_108 64-bit Copyright 1983-2009 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. / panic[cpu0]/thread=300045b6780: BAD TRAP: type=31 rp=2a100734df0 addr=28 mmu_fsr=0 occurred in module "zfs" due to a NULL pointer dereference zfs: trap type = 0x31 addr=0x28 pid=55, pc=0x12f7e68, sp=0x2a100734691, tstate=0x4480001600, context=0x57 g1-g7: 2c19c6, 0, 0, 0, 0, 57, 300045b6780 000002a100734b00 unix:die+74 (10bd400, 2a100734df0, 28, 0, 8, 2a100734bc0) %l0-3: 00000000012f7e68 0000000000100000 0000000000100000 0000000001000000 %l4-7: 0000000000002000 00000000010bd770 00000000010bd400 000000000000000b 000002a100734be0 unix:trap+9e8 (2a100734df0, 0, 31, 0, 0, 1c00) %l0-3: 0000000000000000 000002a100734ce0 0000000000000005 000003000428ac28 %l4-7: 0000000000000000 0000000000000001 0000000000000001 0000000000000028 000002a100734d40 unix:ktl0+48 (0, 18ebfb8, 3514, 180c000, 30000255d18, 2a100734f38) %l0-3: 0000000000000001 0000000000001400 0000004480001600 000000000101b128 %l4-7: 0000030000317840 00000000018ec000 0000000000000000 000002a100734df0 000002a100734e90 zfs:vdev_readable+4 (0, 1, fffffffffffffffd, 0, 0, 3) %l0-3: 00000000013324a0 0000000000000006 0000000000000003 000000000050bd73 %l4-7: 0000000000000007 00000300030be080 0000000000000001 fffffffffffffff8 000002a100734f40 zfs:vdev_mirror_child_select+74 (300070ef120, 0, 300070ef110, 300070ef110, 6, 97) %l0-3: 00000300070ef120 000000000050bd73 0000000000000000 0000000000000001 %l4-7: 00000000002c19c6 0000000000000003 7fffffffffffffff 0000000000000006 000002a100734ff0 zfs:vdev_mirror_io_start+d8 (300027756e0, 1, 12fb53c, 300070ef110, 8, 1) %l0-3: 000000000000fc00 0000000000000001 0000000000000001 0000000000004000 %l4-7: 00000300045b6780 00000300002f0008 00000300002f0058 0000000000000001 000002a1007350d0 zfs:zio_execute+8c (300027756e0, 130c45c, 58, b, 18e2c00, 400) %l0-3: 00000000018e2f60 0000000000000001 000000000000fc04 0000000000000001 %l4-7: 0000000000000800 0000000000000800 0000000000000001 0000000000000000 000002a100735180 zfs:zio_wait+c (300027756e0, 1, 1, 30002775998, 0, 12c7ebc) %l0-3: 0000000000074458 00000000018e65a8 0000000000000753 0000030002632000 %l4-7: 00000000018e4000 0000000000000001 000000000000fc04 000000000000fc00 000002a100735230 zfs:arc_read_nolock+83c (0, 300002f0000, 2, 12c7c00, 0, 400) %l0-3: 0000000000000001 0000000000000001 000002a100735408 00000000018e4000 %l4-7: 0000030006ce1bc0 000002a10073542c 00000000018e8450 0000030007677998 000002a100735340 zfs:dmu_objset_open_impl+b0 (300002f0000, 0, 30006bcd970, 2a1007354f8, 18e2c00, 3000664a540) %l0-3: 000002a100735408 0000000000000001 00000000012c7c00 000003000664a550 %l4-7: 00000300027756e0 00000300030be080 0000030006bcd940 000003000664a570 000002a100735430 zfs:dsl_pool_open+30 (300002f0000, 50bd74, 300002f01a8, ffffffffffffffff, 0, 30006bcdbc8) %l0-3: 0000000000000001 000000000132d400 0000030006bcd940 00000300054acd40 %l4-7: 00000300027756e0 00000300030be080 0000000000000001 0000000000000001 000002a100735500 zfs:spa_load+960 (300002f0000, 300002f0320, 1, 300002f03c0, bab10c, 1815600) %l0-3: 00000000013324a0 0000000000000006 0000000000000003 000000000050bd73 %l4-7: 0000000000000007 00000300030be080 0000000000000001 fffffffffffffff8 000002a1007355f0 zfs:spa_open_common+80 (3000617e000, 2a100735758, 132d4b5, 2a100735818, 0, 18f9000) %l0-3: 0000000000000005 00000000018f90f0 00000300002f0000 0000000000000003 %l4-7: 00000000018f9000 000000000180c0e8 000000000180c0e8 0000000000000000 000002a1007356a0 zfs:spa_get_stats+18 (3000617e000, 2a100735818, 3000617e400, 800, 7a, 132d400) %l0-3: 0000000001839ea0 000000000183fe30 000000000180c000 0000000000000000 %l4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000001 000002a100735760 zfs:zfs_ioc_pool_stats+10 (3000617e000, 0, 0, 7a, 3000617e000, 3000428ac28) %l0-3: 0000000000000000 000003000617e002 000003000617e000 0000000000000019 %l4-7: 000000000000005a 000000000000007a 0000000001336400 0000000001336400 000002a100735820 zfs:zfsdev_ioctl+124 (18e39f0, 100000005, ffbfecd8, 1000, 300002eb178, 3000617e000) %l0-3: 00000000018e3a00 0000000000000078 000000000000000f 0000000000000005 %l4-7: 0000000000000014 00000000018e3800 0000000000000001 00000000013185d8 000002a1007358d0 genunix:fop_ioctl+58 (300049fcc80, 5a05, ffbfecd8, 100003, 0, 2a100735adc) %l0-3: 0000030004a63800 00000000012b6d18 0000030001a60c00 00000000018c5930 %l4-7: 0000000001877c00 00000300030bfbf8 0000000000000001 00000000018c6800 000002a100735990 genunix:ioctl+164 (3, 5a05, ffbfecd8, 7a7000, 30003215928, 800) %l0-3: 0000000000000000 0000000000100003 0000000000000000 0000000000000003 %l4-7: 0000000000000003 0000000000000004 000002a100735b90 000003000428ac28 syncing file systems... done skipping system dump - no dump device configured rebooting... After that, I got into a hard boot/panic loop. Is this a known issue, or should I file a bug? -- blu "Murderous organizations have increased in size and scope; they are more daring, they are served by the most terrible weapons offered by modern science, and the world is nowadays threatened by new forces which, if recklessly unchained, may some day wreak universal destruction." - Arthur Griffith, 1898 ---------------------------------------------------------------------- Brian Utterback - Solaris RPE, Sun Microsystems, Inc. Ph:877-259-7345, Em:brian.utterback-at-ess-you-enn-dot-kom