[squid-dev] Memory error

[Alex Rousskov]

On 05/24/2017 12:34 PM, William Lima wrote:

> I started with no cache to try and the errors (assert) still occurs.

It feels like you are changing goalposts from "memory error" to
"assert". If you are getting assertions, search Squid bugzilla for
relevant bug reports. If there are none, file a new bug report.

Alex


> ----- Original Message -----
> From: "Alex Rousskov" <rousskov at measurement-factory.com>
> To: "William Lima" <william.lima at hscbrasil.com.br>
> Cc: squid-dev at lists.squid-cache.org
> Sent: Wednesday, May 24, 2017 2:35:07 PM
> Subject: Re: [squid-dev] Memory error
> 
> On 05/24/2017 11:29 AM, William Lima wrote:
>>
>> Sharing a single cache_dir (diskd) entry for a multiple worker setup is a valid approach, right?
> 
> No, it is not valid. Diskd is not SMP-aware. Using a single diskd
> cache_dir with multiple workers results in undefined behavior which may
> include stuck transactions, wrong content served, assertions, core
> dumps, etc.
> 
> The same applies to all other cache_dirs except for rock.
> 
> Alex.
> 
> 
>> ----- Original Message -----
>> From: "Amos Jeffries" <squid3 at treenet.co.nz>
>> To: "William Lima" <william.lima at hscbrasil.com.br>, squid-dev at lists.squid-cache.org
>> Sent: Wednesday, May 24, 2017 10:13:53 AM
>> Subject: Re: [squid-dev] Memory error
>>
>> On 24/05/17 06:00, William Lima wrote:
>>> Hi,
>>>
>>> I'm saw errors like these below:
>>>
>>> 2017/05/23 14:35:34 kid2| helperHandleRead: unexpected reply on channel 0 from redirector #Hlpr2 '220543.35796293814'
>>> 2017/05/23 14:35:34 kid2| helperHandleRead: unexpected reply on channel 0 from redirector #Hlpr2 '3380'
>>> 2017/05/23 14:35:34 kid2| helperHandleRead: unexpected reply on channel 0 from redirector #Hlpr2 '2'
>>> 2017/05/23 14:35:34 kid2| helperHandleRead: unexpected reply on channel 0 from redirector #Hlpr2 'd'
>>> 2017/05/23 14:35:34 kid2| helperHandleRead: unexpected reply on channel 0 from redirector #Hlpr2 'null"'
>>>
>>> It seems like a memory corruption, since sometimes the srv->rbuf data shows some HTML content not related to a valid reply.
>>> I'm currently using squid 3.5.25.
>>>
>>> Any clue?
>>>
>>
>> Any other data available?
>>   for example what the helper is being passed by Squid and what it 
>> thinks is being sent back to Squid?
>>
>> Amos
>>
>>
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