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commit 068ea89e7d335d381276a2fff73d5abbb2b0a04d
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Author: Neil Brown <neilb@suse.de>
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Date: Wed Nov 26 08:48:03 2008 -0500
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gssd: unblock DNOTIFY_SIGNAL in case it was blocked.
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I have a situation where rpc.gssd appears to not be working.
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Mount attempts which need to communicate with it block.
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I've narrowed down the problem to that fact that all realtime signals
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have been blocked. This means that DNOTIFY_SIGNAL (which is a
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realtime signal) is never delivered, so gssd never rescans the
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rpc_pipe/nfs directory.
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It seems start_kde (or whatever it is called) and all descendants have
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these
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signals blocked. xfce seems to do the same thing. gnome doesn't.
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So if you start rpc.gssd from a terminal window while logged in via
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KDE, it doesn't behave as expected.
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Signed-off-by: Neil Brown <neilb@suse.de>
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Signed-off-by: Steve Dickson <steved@redhat.com>
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diff --git a/utils/gssd/gssd_main_loop.c b/utils/gssd/gssd_main_loop.c
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index 84f04e9..b9f3a06 100644
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--- a/utils/gssd/gssd_main_loop.c
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+++ b/utils/gssd/gssd_main_loop.c
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@@ -99,6 +99,7 @@ gssd_run()
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int ret;
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struct sigaction dn_act;
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int fd;
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+ sigset_t set;
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/* Taken from linux/Documentation/dnotify.txt: */
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dn_act.sa_sigaction = dir_notify_handler;
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@@ -106,6 +107,11 @@ gssd_run()
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dn_act.sa_flags = SA_SIGINFO;
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sigaction(DNOTIFY_SIGNAL, &dn_act, NULL);
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+ /* just in case the signal is blocked... */
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+ sigemptyset(&set);
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+ sigaddset(&set, DNOTIFY_SIGNAL);
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+ sigprocmask(SIG_UNBLOCK, &set, NULL);
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+
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if ((fd = open(pipefs_nfsdir, O_RDONLY)) == -1) {
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printerr(0, "ERROR: failed to open %s: %s\n",
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pipefs_nfsdir, strerror(errno));
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