I've recently found a fairly stupid problem in the way that SBCL on
Alpha handles breakpoints. The user impact is that the
breakpoint-based tracer will cause SBCL to drop into
the-hole-formerly-filled-by-ldb: if you want to TRACE, make sure you
do :ENCAPSULATE T
After spending most of the day staring at src/runtime, I'm reasonably
sure I know how to fix it now. Explanation tomorrow (when I'm lucid)
for anyone who wants one, patch forthcoming in next couple of days.
In the meantime, if anyone wants to make trace's encapsulate argument
default to T, that would not be a bad partial workaround.
Sorry this is after 0.6.13 and not before it :-(
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