bind-9.5.0b1 problem on ppc64 : rbtdb.c:1532: REQUIRE(prev > 0) failed

Danny Mayer mayer at gis.net
Tue Feb 5 04:27:16 UTC 2008


Fajar A. Nugraha wrote:
> Res wrote:
>> On Tue, 5 Feb 2008, Fajar A. Nugraha wrote:
>>
>>   
>>> First I build 32 bit rpm (ppc), which works fine on older ppc machine
>>> (power4, CPU, 1GHz). This machine doesn't have the processing power
>>> required for our needs. To give an idea of the workload, "rndc status"
>>>     
>> What other stuff is it doing? if it is only a DNS server, CPU means very 
>> little, its memory that counts, however having said that, 
> It's a caching DNS server. In this case CPU matters a lot, as the old 
> box tops at 100% CPU usage most of the time, and the new box is between 
> 30% - 60% (when it's working).
> The new box has 8G memory. However, named seeems to use only a little 
> over 2G (this without any cache or datasize limit). Is there a way to 
> make bind use, say 4-6G memory? When I tried setting max-cache-size to 
> 4G, named refuses to start :-P
> 
>> I've used in an 
>> emergency, a 2.0G P4 with a crappy IDE disk, and only 1G ram, it handled 
>> over 8K concurrent requests without issue for hrmm, 
> How do you determine 8k concurrent? rndc status?
> A faster box should have less concurrent users (as shown by rndc status) 
> since each request can be processed quickly. I believe a more accurate 
> method would be to use number of queries per second.
> 
>> I think it took us a 
>> week to fix the old server box back up.... I dare say it would have alsted 
>> forever anyway.
>>
>> (we used Slackware though, none of this bloated RH stuff)
>>   
> If you can show me a reputable vendor that can provide Slackware support 
> for a reasonable price, and works on a ppc box, and can run bind 9.5, 
> then I'm in. Official support (at least on the OS layer) is veeery 
> important for the big guys, it doesn't matter that we hardly ever use it 
> :-D
> 

This is a beta version of the software. The nearest thing to official 
support is ISC and the bind9-bugs at isc.org email address for bug 
reporting. Don't expect to much at this point.

Danny

> Regards,
> 
> Fajar
> 
> 
> 
> 
> 



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