Re: [firebird-support] Re: server 2.5.8 deadlocked

[Hamish Moffatt ham...@risingsoftware.com [firebird-support]]

On 22/02/18 20:17, hv...@users.sourceforge.net [firebird-support] wrote:


---In firebird-support@yahoogroups.com,  wrote :


On 13/02/18 17:55, Dmitry Yemanov dimitr@... 
[firebird-support] wrote:

> 13.02.2018 05:07, Hamish Moffatt wrote:
>
>> I attached gdb and dumped the state of all threads, which shows
every
>> one of them is waiting on a mutex or futex, ie it's dead
locked. I've
>> attached the trace.
> You need to download the debug symbols (Firebird-debuginfo-*
package)
> and copy them into your FB installation directory. Then take the
> backtrace again.
>

> It locked again. 2.5.8 super server on 32-bit linux.

Super Server, really ? Why ?
Well, it is not bad just strange choce.
But why, why, why 32 bit ???


It also happens on 64-bit linux and with superclassic. I opened 
CORE-5757. The back trace and a test program are attached there.




Regards

Hamish

Re: [firebird-support] Re: server 2.5.8 deadlocked

[hv...@users.sourceforge.net [firebird-support]]

---In firebird-support@yahoogroups.com,  wrote :
 
 On 13/02/18 17:55, Dmitry Yemanov dimitr@... mailto:dimitr@... 
 [firebird-support] wrote:
 > 13.02.2018 05:07, Hamish Moffatt wrote:
 >
 >> I attached gdb and dumped the state of all threads, which shows every
 >> one of them is waiting on a mutex or futex, ie it's dead locked. I've
 >> attached the trace.
 > You need to download the debug symbols (Firebird-debuginfo-* package)
 > and copy them into your FB installation directory. Then take the
 > backtrace again.
 >
 
 > It locked again. 2.5.8 super server on 32-bit linux.
 
   Super Server, really ? Why ? 
Well, it is not bad just strange choce.  
But why, why, why 32 bit ???

  In any case, please, zip backtrace and send it to me (fbvlad at yahoo com)

Regards,
Vlad

Re: [firebird-support] Re: server 2.5.8 deadlocked

[Hamish Moffatt ham...@risingsoftware.com [firebird-support]]

On 22/02/18 10:10, Hamish Moffatt ham...@risingsoftware.com 
[firebird-support] wrote:
> On 13/02/18 17:55, Dmitry Yemanov dim...@users.sourceforge.net
> [firebird-support] wrote:
>> 13.02.2018 05:07, Hamish Moffatt wrote:
>>
>>> I attached gdb and dumped the state of all threads, which shows every
>>> one of them is waiting on a mutex or futex, ie it's dead locked. I've
>>> attached the trace.
>> You need to download the debug symbols (Firebird-debuginfo-* package)
>> and copy them into your FB installation directory. Then take the
>> backtrace again.
>>
> It locked again. 2.5.8 super server on 32-bit linux.
>

Note that we are using the event listener mechanism, and we think our 
deadlock issues may have started when we started using events, about 12 
months ago.

I see this issue in the tracker which looks familiar: 
http://tracker.firebirdsql.org/browse/CORE-4680 . However it's meant to 
be fixed in 2.5.5.



Hamish








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[firebird-support] Re: server 2.5.8 deadlocked

[Dmitry Yemanov dim...@users.sourceforge.net [firebird-support]]

13.02.2018 05:07, Hamish Moffatt wrote:

> I attached gdb and dumped the state of all threads, which shows every
> one of them is waiting on a mutex or futex, ie it's dead locked. I've
> attached the trace.

You need to download the debug symbols (Firebird-debuginfo-* package) 
and copy them into your FB installation directory. Then take the 
backtrace again.


Dmitry







++

Visit http://www.firebirdsql.org and click the Documentation item
on the main (top) menu.  Try FAQ and other links from the left-side menu there.

Also search the knowledgebases at http://www.ibphoenix.com/resources/documents/ 

++


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