Host panic when installing SmartOS on SmartOS

[YanChii]

Hi,

when trying to install a SmartOS KVM guest under SmartOS, it panicks at the end of prompt-config.

Steps to reproduce:

• Download and install latest SmartOS (joyent_20170831T155808Z).
• Create a SmartOS guest with 2 disks and dd the SmartOS USB image onto the first (boot) disk
• Run guest VM and go thru the prompt-config
• The last messages I can see:

Creating pool zones...				done
Initializing config dataset for zones...	done
Creating config dataset...			done
Creating global cores dataset...		

And then the host crashes. Verified on 3 diferrent servers.

Dump analysis:

> $c
vpanic()
vcmn_err+0x42(3, fffffffff7ebf128, ffffff001f810700)
zfs_panic_recover+0x51(fffffffff7ebf128)
range_tree_add+0x14e(ffffff06ec016b00, 8ca7aa400, 800)
metaslab_free_dva+0x138(ffffff06eb92d000, ffffff06ed645c58, aab, 0)
metaslab_free+0xab(ffffff06eb92d000, ffffff06ed645c58, aab, 0)
zio_dva_free+0x1f(ffffff06ed645be8)
zio_execute+0x7f(ffffff06ed645be8)
zio_nowait+0x2d(ffffff06ed645be8)
spa_free_sync_cb+0x52(ffffff075914a808, ffffff0701b88470, ffffff0700db7b00)
bplist_iterate+0x6f(ffffff06eb92d578, fffffffff7e2f620, ffffff075914a808, ffffff0700db7b00)
spa_sync_frees+0x49(ffffff06eb92d000, ffffff06eb92d578, ffffff0700db7b00)
spa_sync+0x3a4(ffffff06eb92d000, aab)
txg_sync_thread+0x227(ffffff06ea267880)
thread_start+8()

> ::status
debugging crash dump vmcore.0 (64-bit) from smarthost
operating system: 5.11 joyent_20170831T155808Z (i86pc)
image uuid: (not set)
panic message: zfs: allocating allocated segment(offset=37756773376 size=2048)

dump content: kernel pages only

It might be related to openzfs/zfs#6315 but I don't know how to verify it.

Jan

[pfmooney]

Is it the KVM guest or the containing host which is panicking?

[YanChii]

The containing host. The whole physical server goes panick and dumps a core.

[pfmooney]

OK. Thanks for the detail. I'll look into the zfs bug you cited.

[YanChii]

Hi.
Any news on this? I'm running SmartOS KVM instances for debugging and I'm forced to use a year old SmartOS host platform because the new ones crash instantly.
Thanks.
Jan