diff options
| -rw-r--r-- | ChangeLog | 2 | ||||
| -rw-r--r-- | src/or/config.c | 27 |
2 files changed, 26 insertions, 3 deletions
@@ -117,6 +117,8 @@ Changes in version 0.2.0.1-alpha - 2007-??-?? o Minor features (other): - More unit tests. + - Warn when using a version of libevent before 1.3b to run a server on + OSX or BSD: these versions interact badly with userspace threads. o Removed features: - Removed support for the old binary "version 0" controller protocol. diff --git a/src/or/config.c b/src/or/config.c index 18d6395494..36fab8954b 100644 --- a/src/or/config.c +++ b/src/or/config.c @@ -598,7 +598,7 @@ typedef enum { /* Note: we compare these, so it's important that "old" precede everything, * and that "other" come last. */ LE_OLD=0, LE_10C, LE_10D, LE_10E, LE_11, LE_11A, LE_11B, LE_12, LE_12A, - LE_13, LE_13A, + LE_13, LE_13A, LE_13B, LE_OTHER } le_version_t; static le_version_t decode_libevent_version(void); @@ -4034,6 +4034,7 @@ static const struct { { "1.2a", LE_12A }, { "1.3", LE_13 }, { "1.3a", LE_13A }, + { "1.3b", LE_13B }, { NULL, LE_OTHER } }; @@ -4060,10 +4061,11 @@ decode_libevent_version(void) static void check_libevent_version(const char *m, int server) { - int buggy = 0, iffy = 0, slow = 0; + int buggy = 0, iffy = 0, slow = 0, thread_unsafe = 0; le_version_t version; const char *v = event_get_version(); const char *badness = NULL; + const char *sad_os = ""; version = decode_libevent_version(); @@ -4096,7 +4098,26 @@ check_libevent_version(const char *m, int server) buggy = 1; } - if (buggy) { + /* Libevent versions before 1.3b do very badly on operating systems with + * user-space threading implementations. */ +#if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__NetBSD__) + if (server && version < LE_13B) { + thread_unsafe = 1; + sad_os = "BSD variants" + } +#elif defined(__APPLE__) || defined(__darwin__) + if (server && version < LE_13B) { + thread_unsafe = 1; + sad_os = "Mac OS X"; + } +#endif + + if (thread_unsafe) { + log(LOG_WARN, LD_GENERAL, + "Libevent version %s often crashes when running a Tor server with %s. " + "Please use the latest version of libevent (1.3b or later)",v,sad_os); + badness = "BROKEN"; + } else if (buggy) { log(LOG_WARN, LD_GENERAL, "There are known bugs in using %s with libevent %s. " "Please use the latest version of libevent.", m, v); |