10.3-BETA2 panic on boot with GCE NVMe

[Steven Hartland]

Is have an inkling that r293673 may be at fault here, can you try 
reverting that change and see if it fixes the issue?

On 22/02/2016 16:35, Andy Carrel via freebsd-stable wrote:
> I've created a 10.3-BETA2 image for Google Compute Engine using swills'
> script and am getting a panic on boot when the VM is configured with Local
> SSD as NVMe (--local-ssd interface="NVME"). This is a regression from
> 10.2-RELEASE which will boot successfully with an identical configuration.
>
> """
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address = 0x60
> fault code = supervisor read data, page not present
> instruction pointer = 0x20:0xffffffff80e16019
> stack pointer        = 0x28:0xfffffe01bfff59c0
> frame pointer        = 0x28:0xfffffe01bfff59e0
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, long 1, def32 0, gran 1
> processor eflags = interrupt enabled, resume, IOPL = 0
> current process = 12 (irq11: virtio_pci0+)
> [ thread pid 12 tid 100039 ]
> Stopped at      nvme_ctrlr_intx_handler+0x39:   cmpq    $0,0x60(%rdi)
> db> bt
> Tracing pid 12 tid 100039 td 0xfffff8000422e000
> nvme_ctrlr_intx_handler() at nvme_ctrlr_intx_handler+0x39/frame
> 0xfffffe01bfff59e0
> intr_event_execute_handlers() at intr_event_execute_handlers+0xab/frame
> 0xfffffe01bfff5a20
> ithread_loop() at ithread_loop+0x96/frame 0xfffffe01bfff5a70
> fork_exit() at fork_exit+0x9a/frame 0xfffffe01bfff5ab0
> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe01bfff5ab0
> --- trap 0, rip = 0, rsp = 0, rbp = 0 ---
> """
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