Can anyone help to shed the light on mysterious bug in SBCL (found it!)

Vasily Postnicov shamaz.mazum at
Thu Apr 17 07:49:17 PDT 2014

2014-04-17 11:42 GMT+04:00 Vasily Postnicov <shamaz.mazum at>:

> Thanks for this fix, Matt. If I find more elegant solution, I'll write.
> 2014-04-16 20:37 GMT+04:00 Matthew Dillon <dillon at>:
>     I'm looking at how to adjust libthread_xu to clean out the red-zone and
>>     thread stack cache(s).  Not sure if that will clean everything up
>> though,
>>     there might be (probably are) other allocations that are intended to
>>     be persistent hidden in there.
>>     In other words, even when we fix the red-zone issue, loading and
>>     unloading shared libraries that weren't designed for it causes all
>>     sorts of memory leaks and just shouldn't be done by any application.
>>     The only shared libraries that should *ever* be unloaded are ones that
>>     are designed for load/unload cycling (e.g. things like PAM modules and
>>     such, not main-stream libraries).
>>                                                 -Matt
Oh. I was so simple. In FreeBSD libthr is compiled with this line in the


It works also for libthread_xu.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the Users mailing list