GCC build causes panic: page already inserted

[Dan Allen]

On 18 Mar 2009, at 10:02 AM, John Baldwin wrote:

> On Monday 16 March 2009 1:59:25 pm Dan Allen wrote:
>> I saw that someone else had this happen last week...  It is not a
>> hardware failure.
>>
>> While building the latest GCC 4.4 from /usr/ports/lang/gcc44 I got a
>> core dump with the message
>>
>> 	vm_page_insert: page already inserted
>>
>> I build this port every week on a Toshiba laptop (1.8GHz Core 2  
>> Duo, 1
>> GB RAM, 160 GB HD, plenty of free space, RELENG_7).  I have never  
>> seen
>> this until today.  Just before building this port I completely built
>> the kernel and world and installed them, so I am as up-to-date as you
>> could be.
>>
>> I suspect recent changes to vm code... perhaps in /usr/src/sys/vm/
>> vm_meter.c or vm_page.c ?
>>
>> The compressed core dump is 41 MB.
>
> When I have seen this panic on machines in the past it was caused by  
> bad RAM
> or another hardware problem.

Well, I have not been able to reproduce it.  I ran builds on two  
different
machines, and everything now works fine.  I will keep my eye open for  
another
occurrence, but for now we are at the end of the line on this.  At  
least I am...

Thanks to everyone for their help and ideas.

Dan