Hi This issue here: https://illumos.org/issues/3917
seems to have hit one of our production boxes today. I took a look at the dump and it seems to tally precisely with this issue. Here's a snippet: mdb -k unix.0 vmcore.0 Loading modules: [ unix genunix specfs dtrace mac cpu.generic uppc pcplusmp scsi_vhci ufs ip hook neti sockfs arp usba uhci mm stmf_sbd stmf zfs lofs idm crypto random cpc logindmux ptm kvm sd sppp nsmb smbsrv nfs ipc ] > ::status debugging crash dump vmcore.0 (64-bit) from c7.jhb.cloudafrica.net operating system: 5.11 joyent_20160330T234717Z (i86pc) image uuid: (not set) panic message: turnstile_block(ffffff3d8b4db508): unowned mutex dump content: kernel pages only > ::stack vpanic() turnstile_block+0x78a(0, 0, ffffff3e13c64d00, fffffffffbc07ac0, 0, 0) mutex_vector_enter+0x3a3(ffffff3e13c64d00) If there is any further information you'd like please let me know. Thanks Cheers Zak ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com