[erlang-bugs] Re: [erlang-questions] R13B stop_select error

[Sverker Eriksson]

Thijs Terlouw wrote:
> Could you elaborate on the effects of this bug? I also have encountered this
> problem and was wondering if it can cause a problem I have encountered in my
> application (where the app seems to run fine, but seems not to be processing
> TCP requests anymore). Is there a public timetable for the release of
> R13B01?
>   
The bug caused access of freed memory that used to contain general 
information about file descriptor events for the VM. We have seen 
different effects of this. I suggest you read the two cases posted in 
the original thread in erlang-questions:

http://www.erlang.org/cgi-bin/ezmlm-cgi?4:sss:43685:200905:pcjfcbbfinlhdllhjhme#b

In another case of a paying customer, the bug caused the VM to crash.
Your case of "not processing TCP requests anymore", sounds like it very 
well could be caused by this bug. Especially if you get the error log 
from driver_select when that happens. The bug does only exist on R13, 
non-Windows, with SMP-support.

R13B01 is scheduled to be released on June 10.


/Sverker, Erlang/OTP, Ericsson