This bug is reported by John McMullen (mcmullen@netscape.com). PR_ImportFile, PR_ImportTCPSocket, and PR_ImportUDPSocket are not initializing NSPR implicitly. So if PR_ImportFile is the first NSPR function your program calls, your program will trigger this assertion failure (in a debug build): Assertion failure: NULL != _pr_fd_cache.stack, at prfdcach.c:77 Abort (core dumped) The fix is to add the following line to the beginning of PR_ImportFile, PR_ImportTCPSocket, and PR_ImportUDPSocket: if (!_pr_initialized) _PR_ImplicitInitialization(); A workaround is to add a dummy PR_GetCurrentThread() call before your PR_ImportFile call. The PR_GetCurrentThread() call forces NSPR to initialize.

Fixed on the tip. /cvsroot/mozilla/nsprpub/pr/src/io/prfile.c, revision 3.9. /cvsroot/mozilla/nsprpub/pr/src/io/prsocket.c, revision 3.11. /cvsroot/mozilla/nsprpub/pr/src/pthreads/ptio.c, revision 3.10. (Also fixed in the internal cvs repository: /m/src/ns/nspr20/pr/src/io/prfile.c, revision 2.12. /m/src/ns/nspr20/pr/src/io/prsocket.c, revision 2.22. /m/src/ns/nspr20/pr/src/pthreads/ptio.c, revision 2.42.)

Closed the bug.

NSPR now has its own Bugzilla product. Moving this bug to the NSPR product.