Re: [cffi-devel] Weird segfaults interfacing with libsane

On Mon, May 26, 2008 at 9:23 PM, Rupert Swarbrick rswarbrick@googlemail.com wrote:

However, I tried starting up sbcl with gdb and it was a bit too unpleasant - gdb reported about 5 [1] segfaults per line in the repl, but everything carried on working (well until I loaded my test2.lisp file [2]).

http://sbcl-internals.cliki.net/gdb contains some (possibly outdated) tips. Also, I noticed that libsane seems to have a lot of debug statements along its code. I suggest you build a version of libsane with those enabled. Since your program is segfaulting very quickly, that should help in identifying the problem.