[Sbcl-devel] Strange SBCL error at startup

[Alain P. <Dr....@gm...>]

G'day!

I'm starting a new personal project, having used Lispworks for many
years, and SBCL seems to be "the open source lisp of choice", right now.
Great work guys!


Now to the bad news... :-)

I have a (multi-threaded) application, which I start like this:

% sbcl --core myapp.core --eval "(mypackage:start)"

Once in a blue moon, I experienced something rather odd; the
threads meant to be launched by START haven't even been run yet,
and the console is left, frozen, in a debugger, with a stack like
this one:

   (READ-CHAR #<SB-SYS:FD-STREAM for "the terminal" {D283941}> NIL #:EOF-OBJECT #<unused argument>)
   5[6] u
   (SB-IMPL::INPUT-CHAR/UTF-8 #<SB-SYS:FD-STREAM for "the terminal" {D283941}> NIL #:EOF-OBJECT)
   4[6] u
   (SB-IMPL::REFILL-INPUT-BUFFER #<SB-SYS:FD-STREAM for "the terminal" {D283941}>)
   3[6] u
   (SB-SYS:WAIT-UNTIL-FD-USABLE 15 :INPUT NIL)
   2[6] u
   (SB-SYS:DECODE-TIMEOUT NIL)
   1[6] u
   (GET-INTERNAL-REAL-TIME)
   0[6] u

   Top of stack.
   0[6] 

Seems rather odd.  

The whole thing is started from `screen' when the machine boots.
This was on sbcl 1.0.29.  Haven't seen it since, but then again,
I don't boot this machine terribly often ;-)

Any clues will be welcome.  Thanks!

          --Alain Picard

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