Hi, I recently noticed that cv_wait_sig() will return -1 rather than EINTR when a SIGINT is delivered. This is in contrast to CONDVAR(9) which states:
<...> cv_wait_sig() and cv_timedwait_sig() return prematurely with a value of EINTR or ERESTART if a signal is caught <...> To demonstrate the problem outside my out-of-tree driver, I took the skeleton driver from http://www.captain.at/programming/freebsd/ and added the following function, invoked at module load: static struct mtx m; static struct cv c; static void cv_test(void) { int rc; mtx_init(&m, "skel_m", MTX_DEF, MTX_DEF); cv_init(&c, "skel_c"); mtx_lock(&m); rc = cv_wait_sig(&c, &m); mtx_unlock(&m); printf("cv_wait_sig returned %d\n", rc); cv_destroy(&c); mtx_destroy(&m); } I load the module, and I ^C kldload after a few seconds to break out of the cv_wait_sig(), which results in this output on console: Skeleton KLD loaded. cv_wait_sig returned -1 Am I doing something wrong, or are condvars broken? I've tried to track this down with dtrace, but failed.. Thanks, Drew _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"