[zeromq-dev] [PATCH] [Issue 97] Fix assertion in PGM transports on cancel_timer

Martin Sustrik sustrik at moloch.sk
Sat Oct 9 19:39:10 CEST 2010


Steven,

Any idea what's the problem there? Should I delay applying the patch?

Thanks.
Martin

On 10/08/2010 04:34 PM, ntupel at googlemail.com wrote:
> On Fri, Oct 8, 2010 at 4:02 PM, Steven McCoy<steven.mccoy at miru.hk>  wrote:
>    
>> Still not overly ideal for performance, a fired timer will re-add itself in
>> the callback and then destroy itself in poller_base.
>> Fixes early firing timers not re-firing.
>>      
> This seems to trigger an assertion failure in sender on higher rate
> values (e.g. 2048)
>
> ...
> Trace: Failed to push retransmit request for #518
> Trace: Failed to push retransmit request for #519
> Trace: Failed to push retransmit request for #520
> Trace: Failed to push retransmit request for #521
> Trace: Failed to push retransmit request for #522
> Trace: Failed to push retransmit request for #523
> Trace: Recv again on not-full
> Trace: Failed to push retransmit request for #483
> Trace: Recv again on not-full
> Assertion failed: token == tx_timer_id (pgm_sender.cpp:197)
> Aborted
>
> Stack trace:
>
> #0  0x00007ffff6a61565 in raise () from /lib/libc.so.6
> #1  0x00007ffff6a629e6 in abort () from /lib/libc.so.6
> #2  0x00007ffff7b80ed3 in zmq::pgm_sender_t::timer_event (this=<value
> optimized out>, token=<value optimized out>) at pgm_sender.cpp:197
> #3  0x00007ffff7b852b1 in zmq::poller_base_t::execute_timers
> (this=0x602180) at poller_base.cpp:88
> #4  0x00007ffff7b7b588 in zmq::epoll_t::loop (this=0x602180) at epoll.cpp:137
> #5  0x00007ffff7b8cc57 in zmq::thread_t::thread_routine
> (arg_=0x6021e8) at thread.cpp:79
> #6  0x00007ffff7533cb0 in start_thread () from /lib/libpthread.so.0
> #7  0x00007ffff6afd7ad in clone () from /lib/libc.so.6
> #8  0x0000000000000000 in ?? ()
>
> NB: The receiver gave me once on exiting:
>
> pure virtual method called
> terminate called without an active exception
> Aborted
>
> However I could not reproduce this so far.
>
> Thanks,
> nt
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