illumos gate

Latest Illumos git as of 11/11/13, running on an OI 151a8 base.

System with only two pools - an rpool and a single-disk SATA pool solely used as a dump device.

Did a "reboot", system panic'd on the way down.

vmdump available at http://skysrv.pha.jhu.edu/~rercola/zfs_vmdump (2.5G).

Unsure what else prompted this, as I've lit. never seen this panic before, and this system isn't special, really...

> ::panicinfo
             cpu                5
          thread ffffff2356247860
         message BAD TRAP: type=e (#pf Page fault) rp=ffffff00f5c6f4c0 addr=fb1feedfad3 occurred in module "unix" due to an illegal access to a user address
             rdi ffffff23748f2030
             rsi                0
             rdx              600
             rcx                2
              r8      fb1feedfabb
              r9                0
             rax ffffff2356247860
             rbx ffffff23748f2030
             rbp ffffff00f5c6f620
             r10 fffffffffb85e5a8
             r11 ffffff238b0bb320
             r12                1
             r13 ffffff238b0bb320
             r14 ffffff238b0bb320
             r15                4
          fsbase                0
          gsbase ffffff2329308580
              ds               4b
              es               4b
              fs                0
              gs              1c3
          trapno                e
             err                0
             rip fffffffffb86a3e4
              cs               30
          rflags            10282
             rsp ffffff00f5c6f5b8
              ss                0
          gdt_hi                0
          gdt_lo         c00001ef
          idt_hi                0
          idt_lo         e0000fff
             ldt                0
            task               70
             cr0         80050033
             cr2      fb1feedfad3
             cr3       10551be000
             cr4              6f8
> ::stack
mutex_owner_running+0x14()
arc_cksum_compute+0x34(ffffff238b5d5f10, 0)
arc_buf_freeze+0x71(ffffff238b5d5f10)
dbuf_rele_and_unlock+0x10d(ffffff238b5d8678, fffffffff790a827)
dbuf_rele+0x30(ffffff238b5d8678, fffffffff790a827)
dmu_buf_rele_array+0x50(ffffff23d47d1b00, 1, fffffffff790a827)
dmu_read+0x180(ffffff230f69fbc0, 8e5f, 0, 1000, fffffe202c1ec000, 0)
zfs_fillpage+0x13a(ffffff238c0cb800, 0, ffffff2377739a60, feddc000, ffffff00f5c6fb40, 8000)
zfs_getpage+0x27f(ffffff238c0cb800, 0, 1000, ffffff00f5c6fbdc, ffffff00f5c6fb40, 8000)
fop_getpage+0x7e(ffffff238c0cb800, 0, 1000, ffffff00f5c6fbdc, ffffff00f5c6fb40, 8000)
segvn_fault+0x13ff(ffffff23783c9680, ffffff2377739a60, feddc000, 1000, 0, 1)
as_fault+0x342(ffffff23783c9680, ffffff237819e900, feddc000, 1, 0, 1)
pagefault+0x96(feddc000, 0, 1, 0)
trap+0xdc3(ffffff00f5c6ff00, feddc000, 5)
0xfffffffffb8002ba()
> ::zfs_dbgmsg
spa=rpool1 async request task=1
txg 60770 open pool version 5000; software version 5000/5; uts  5.11 mptsas_horrid i86pc
vdev /dev/dsk/c0d0s0, capacity 1953520127, altern lba 1953525167
capacity change: vdev /dev/dsk/c0d0s0, psize 1000196349440, max_psize 1000196349440
vdev /dev/dsk/c0d0s0, capacity 1953520127, altern lba 1953525167
capacity change: vdev /dev/dsk/c0d0s0, psize 1000196349440, max_psize 1000196349440
txg 24502 open pool version 5000; software version 5000/5; uts blackbox5 5.11 mptsas_horrid i86pc
txg 60931 snapshot rpool1/ROOT/mpt_sas-2013-11-11@2013-11-12-18:33:40 (id 264)
txg 60931 set rpool1/ROOT/mpt_sas-2013-11-11@2013-11-12-18:33:40 (id 264) org.opensolaris.libbe:policy=static
ioctl snapshot
txg 60939 destroy rpool1/ROOT/mpt_sas-2013-11-11@2013-11-12-18:33:40 (id 264)
freed 1007 blocks in 10ms from free_bpobj/bptree txg 60939
ioctl destroy_snaps