Kernel panic on boot at dm_crypt

[Stefan Unterweger]

I forgot to add the output of ‚trace‘, here it is, beginning from the
most recent panic.

| db> trace
| mpipe_alloc_callback() at mpipe_alloc_callback+0x13d 0xffffffff80606056
| dmtc_crypto_read_start() at dmtc_crypto_read_start+0x54 0xffffffff826bd572
| dmtc_bio_read_done() at dmtc_bio_read_done+0x2c 0xffffffff826bd6ff
| biodone() at biodone+0x110 0xffffffff8066bc77
| vtblk_vq_intr() at vtblk_vq_intr+0x129 0xffffffff808cd087
| virtqueue_intr() at virtqueue_intr+0x26 0xffffffff808d2dc7
| vtpci_legacy_intr() at vtpci_legacy_intr+0x58 0xffffffff808d17b5
| lwkt_serialize_handler_call() at lwkt_serialize_handler_call+0x79 0xffffffff80620542
| ithread_handler() at ithread_handler+0x242 0xffffffff805d898c

In case of typos, I’ve again attached a screenshot.  I have been
observing the traces of the last few crashes.  The traces are
practically identical, down to most of the exact memory locations of
every single line.


* Stefan Unterweger on Wed, Jul 06, 2016 at 01:04:47AM +0200:
> Since I’m currently stuck staring at rebooting screeny anyway, I thought
> I might as well copy the contents of the kernel page as plain text, for
> easier reference.  I hope I haven’t mistyped too many of those horribly
> long memory addresses in the process.
> 
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; lapic->id    = 00000000
> fault virtual address   = 0xffffffe07ff40318
> fault code              = supervisor write data, page not present
> instruction pointer     = 0x8:0xffffffff80606056
> stack pointer           = 0x10:0xffffffe0b6140810
> frame pointer           = 0x10:0xffffffe0b6140850
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                         = DPL 0, pres 1, long 0, def32 0, gran 1
> processor eflags        = interrupt enabled, resume, IOPL = 0
> current process         = Idle
> current thread          = pri 28 (CRIT)
> kernel: type 12 trap, code=0
> 
> CPU0 stopping CPUs: 0x0000000e
>  stopped
> Stopped at     mpipe_alloc_callback+0x13d:    movq    %rcv,(%rax)
> db>

-- 
A pedestrian could be defined as a man who had found a place to park his car.
		-- Robert A. Heinlein
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