Boost C++ Libraries: Ticket #7239: Stack overflow when calling create_directories(":D")

anonymous — Mon, 27 Aug 2012 18:19:27 GMT

We are seeing this problem in boost 1.49. Crash dumps are showing endless recursion in create_directories(). I will attach one. Thanks. henri@…

anonymous — Mon, 27 Aug 2012 18:26:26 GMT

The crash dump file exceeds the maximum allowed file size. Trying a screenshot of it for now. Contact me if you need more info.

attachment set

henri@… — Mon, 27 Aug 2012 18:27:09 GMT

attachment → create_directories.png

Screenshot of create_directories() crash dump

status changed

Beman Dawes — Mon, 27 Aug 2012 19:38:18 GMT

status new → assigned

status changed; resolution set

Beman Dawes — Tue, 28 Aug 2012 12:57:05 GMT

status assigned → closed
resolution → fixed

(In [80279]) Fix #7239, Stack overflow when calling create_directories(":D"). The reported problem was a symptom of an internal bug that caused path::filename() and path::parent_path() to fail on Windows for path(":"), and that in turn caused other functions that depend on filename() or parent_path() to fail, such as create_directories().

henri@… — Tue, 28 Aug 2012 23:43:59 GMT

Thanks for the fix.

In the meantime, I realized why we were running into this. On Windows, libraries have virtual names of the form "::[GUID]/[name].library-ms" and thus would trigger the issue. (Aside: code should not attempt to create a directory with such a name, but legacy code not used to dealing with Windows library nodes probably have cases that fall into the creation action... at least, that was our situation.)