STABLE kernel panic: privileged instruction fault

[Alexey Tarasov]

Hello Andriy!


On Aug 18, 2010, at 7:30 PM, Andriy Gapon wrote:

> on 13/08/2010 00:45 Alexey Tarasov said the following:
>> Fatal trap 1: privileged instruction fault while in kernel mode
>> cpuid = 1; apic id = 01
>> instruction pointer     = 0x20:0xffffff8040d2cc83
>> stack pointer           = 0x28:0xffffff8040d2ca80
>> frame pointer           = 0x28:0xffffff0060c0b740
> 
> I suspect that either stack is corrupted or non-code is executed (or both).
> Stack pointer seems to be too close to instruction pointer and too far from frame
> pointer.
> 
> Can you try to use kgdb and disassemble code (or examine data) near instruction
> pointer address and also near frame pointer address?
> Also, you might want to rebuild kgdb with a recent change from head, so that it
> better maps symbols and addresses in kernel modules.

We have the similar discussion with Kostik Belousov here:
http://lists.freebsd.org/pipermail/freebsd-stable/2010-August/058287.html

I'm installing new kernel with DDB on the servers now and waiting for the panic.

Thank you for your reply!

--
Alexey Tarasov

(\__/) 
(='.'=) 
E[: | | | | :]З 
(")_(")