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bug#25267: crashes here only for invalid scheme
From: |
Linas Vepstas |
Subject: |
bug#25267: crashes here only for invalid scheme |
Date: |
Sat, 24 Dec 2016 13:54:04 -0600 |
FYI: important note: this crashes only because an exception path is
taken. Due to a "bug" in the shell script above, `ctr` is undefined,
so an unbound-variable exception is thrown. When the scheme is valid,
then it does NOT crash here!
--linas
opencog> (NumberNode ctr)
Entering scheme shell; use ^D or a single . on a line by itself to exit.
guile> Backtrace:
In ice-9/boot-9.scm:
157: 12 [catch #t #<catch-closure f83bce0> ...]
In unknown file:
?: 11 [apply-smob/1 #<catch-closure f83bce0>]
In ice-9/boot-9.scm:
157: 10 [catch #t #<catch-closure f83b5c0> ...]
In unknown file:
?: 9 [apply-smob/1 #<catch-closure f83b5c0>]
?: 8 [call-with-input-string "(NumberNode ctr)\n" ...]
In ice-9/boot-9.scm:
2320: 7 [save-module-excursion #<procedure f818930 at
ice-9/eval-string.scm:65:9 ()>]
In ice-9/eval-string.scm:
44: 6 [read-and-eval #<input: string f8049c0> #:lang ...]
37: 5 [lp (NumberNode ctr)]
In ice-9/eval.scm:
387: 4 [eval # ()]
393: 3 [eval #<memoized ctr> ()]
In unknown file:
?: 2 [memoize-variable-access! #<memoized ctr> #<directory
(guile-user) bb3c60>]
In ice-9/boot-9.scm:
102: 1 [#<procedure f181e80 at ice-9/boot-9.scm:97:6 (thrown-k .
args)> unbound-variable ...]
In unknown file:
?: 0 [apply-smob/1 #<catch-closure f83b580> unbound-variable ...]
ERROR: In procedure apply-smob/1:
ERROR: Unbound variable: ctr
ABORT: unbound-variable