remove-static-links is not gc safe

[Stas Boukarev]

(sb-thread:make-thread (lambda ()
                         (loop (gc :full t) (sleep 0.001)))
                       :name "gc stress")

(sb-vm::remove-static-links (sb-int:find-fdefn 'sb-ext:print-symbol-with-prefix))

hangs.

[Douglas Katzman (dougk)]

I don't think urgently needs attention. I plan to remove static linking except for cores created from the editcore steps. Any day now.

[Douglas Katzman (dougk)]

After https://sourceforge.net/p/sbcl/sbcl/ci/e69a2fdd though this problem still technically exists, it is not really relevant because only an ELF core undergoes static linking, and it's my intent that users not redefine functions in the ELF text section at runtime.