HP Vectra VL420, P4 @ 2.0 GHz, 1.5 GHz RAM, nVidia FX5500<br>PCBSD 8.1-RC1 Kernel Panic on Reboot.<br><br>=========================================================<br>There is a kernel panic on boot up shortly after the PCBSD Welcome Screen and immediately after the ZFS Server Pool version message and the Timecounter frequency and Tick counter reports:<br>
<br>Fatal trap 12: page fault while in kernel mode<br>cpuid = 0; apic id = 00<br>fault virtual address = 0x797469<br>fault code = supervisor read, page not present<br>instruction pointer = 0x20:0xc1ab1a41<br>
stack pointer = 0x28:0xc1c20bec<br>frame pointer = 0x28:0xc1c20bec<br>code segment = base 0x0, limit 0xfffff, type 0x1b<br> = DPL 0, pres 1, def32 1, gran 1<br>processor eflags = interrupt enabled, resume IOPL = 0<br>
current process = 0 (swapper)<br>tran number = 12<br><br>panic: page fault<br>cpuid = 0<br>Uptime: 1s<br><br>Cannot dump. Device not defined or unavailable<br><br>Automatic reboot in 15 seconds . . . etc, etc.<br>
<br><br><br>Comments:<br><br>1. This computer was the subject of a previous report about the upgrade freezing followed by spontaneous reboot. (Kris -- You will remember telling me afterward not to do a fresh install after a kernel panic.)<br>
<br>2. I did a "fresh install" and it has worked fine for several days.<br><br>3. Immediately before the kernel panic, the last thing I did was install the Virtualbox PBI and rebooted. The shutdown portion of the reboot was normal and without incident.<br>
<br>4. The kernel panic is repeatable 100% of the time.<br><br>5. Toggling ACPI off makes no difference.<br><br>6. Nor will it start in the safe mode. <br>