From: Neil Brown Date: Wed, 26 Nov 2008 13:48:03 +0000 (-0500) Subject: gssd: unblock DNOTIFY_SIGNAL in case it was blocked. X-Git-Tag: nfs-utils-1-1-5~55 X-Git-Url: https://git.decadent.org.uk/gitweb/?p=nfs-utils.git;a=commitdiff_plain;h=068ea89e7d335d381276a2fff73d5abbb2b0a04d;hp=f7020bd5d3ffca280690c6beba5fecdeb4d305f7;ds=sidebyside gssd: unblock DNOTIFY_SIGNAL in case it was blocked. I have a situation where rpc.gssd appears to not be working. Mount attempts which need to communicate with it block. I've narrowed down the problem to that fact that all realtime signals have been blocked. This means that DNOTIFY_SIGNAL (which is a realtime signal) is never delivered, so gssd never rescans the rpc_pipe/nfs directory. It seems start_kde (or whatever it is called) and all descendants have these signals blocked. xfce seems to do the same thing. gnome doesn't. So if you start rpc.gssd from a terminal window while logged in via KDE, it doesn't behave as expected. Signed-off-by: Neil Brown Signed-off-by: Steve Dickson --- diff --git a/utils/gssd/gssd_main_loop.c b/utils/gssd/gssd_main_loop.c index 84f04e9..b9f3a06 100644 --- a/utils/gssd/gssd_main_loop.c +++ b/utils/gssd/gssd_main_loop.c @@ -99,6 +99,7 @@ gssd_run() int ret; struct sigaction dn_act; int fd; + sigset_t set; /* Taken from linux/Documentation/dnotify.txt: */ dn_act.sa_sigaction = dir_notify_handler; @@ -106,6 +107,11 @@ gssd_run() dn_act.sa_flags = SA_SIGINFO; sigaction(DNOTIFY_SIGNAL, &dn_act, NULL); + /* just in case the signal is blocked... */ + sigemptyset(&set); + sigaddset(&set, DNOTIFY_SIGNAL); + sigprocmask(SIG_UNBLOCK, &set, NULL); + if ((fd = open(pipefs_nfsdir, O_RDONLY)) == -1) { printerr(0, "ERROR: failed to open %s: %s\n", pipefs_nfsdir, strerror(errno));