panic: make_dev_credv: bad si_name (error=17, si_name=pass2)

[Jeremy Chadwick]

On Sun, Nov 20, 2011 at 03:34:36PM +0000, Johannes Totz wrote:
> (Sent twice, first one bounced...)
> Just got a panic on 9-stable, running inside VirtualBox, trying to
> build a release-set. Don't know yet if reproducable, just happened a
> few minutes ago.
> The whole core.txt stuff follows below (beware of line-breaks):
>
> ...
> Unread portion of the kernel message buffer:
> (ada1:ahcich0:0:0:0): lost device
> panic: make_dev_credv: bad si_name (error=17, si_name=pass2)
> cpuid = 0
> KDB: stack backtrace:
> #0 0xc0a4aff7 at kdb_backtrace+0x47
> #1 0xc0a185c7 at panic+0x117
> #2 0xc09d05de at make_dev_credv+0x9e
> #3 0xc09d080a at make_dev+0x4a
> #4 0xc04b79e0 at passregister+0x230
> #5 0xc048ece3 at cam_periph_alloc+0x4e3
> #6 0xc04b7525 at passasync+0x85
> #7 0xc0490442 at xpt_async_bcast+0x32
> #8 0xc0492715 at xpt_async+0x105
> #9 0xc04991f3 at probedone+0xc33
> #10 0xc04958a1 at camisr_runqueue+0x2e1
> #11 0xc04959ff at camisr+0x13f
> #12 0xc09ed69b at intr_event_execute_handlers+0x13b
> #13 0xc09eee5a at ithread_loop+0x7a
> #14 0xc09ea8a7 at fork_exit+0x97
> #15 0xc0d32734 at fork_trampoline+0x8
> ...
> Uptime: 7m57s
> (ada1:ahcich0:0:0:0): Synchronize cache failed

According to the above, your ada1 "virtual disk" fell off the bus
entirely.  Relevant storage bits taken from your dmesg:

> atapci0: <Intel PIIX4 UDMA33 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xd000-0xd00f at device 1.1 on pci0
> ata0: <ATA channel 0> on atapci0
> ata1: <ATA channel 1> on atapci0
> ahci0: <Intel ICH8M AHCI SATA controller> port 0xd040-0xd047,0xd050-0xd057,0xd060-0xd06f mem 0xf0806000-0xf0807fff irq 5 at device 13.0 on pci0
> ahci0: AHCI v1.10 with 1 3Gbps ports, Port Multiplier not supported
> ahcich0: <AHCI channel> at channel 0 on ahci0
> ...
> ada0 at ata0 bus 0 scbus0 target 0 lun 0
> ada0: <VBOX HARDDISK 1.0> ATA-6 device
> ada0: 33.300MB/s transfers (UDMA2, PIO 65536bytes)
> ada0: 20480MB (41943040 512 byte sectors: 16H 63S/T 16383C)
> ada0: Previously was known as ad0
> ada1 at ahcich0 bus 0 scbus2 target 0 lun 0
> ada1: <VBOX HARDDISK 1.0> ATA-6 SATA 2.x device
> ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
> ada1: Command Queueing enabled
> ada1: 20480MB (41943040 512 byte sectors: 16H 63S/T 16383C)
> ada1: Previously was known as ad4

My recommendation is to remove VirtualBox from the picture entirely and
instead do whatever you were doing (running zfstest) on bare metal.

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                   Mountain View, CA, US |
| Making life hard for others since 1977.               PGP 4BD6C0CB |