diff -Nru jackd2-1.9.8~dfsg.1/debian/changelog jackd2-1.9.8~dfsg.1/debian/changelog
--- jackd2-1.9.8~dfsg.1/debian/changelog	2012-02-10 15:49:24.000000000 +0100
+++ jackd2-1.9.8~dfsg.1/debian/changelog	2012-04-19 11:28:45.000000000 +0200
@@ -1,3 +1,10 @@
+jackd2 (1.9.8~dfsg.1-1ubuntu2) precise; urgency=low
+
+  * Add patch to fix jackdbus segfaulting while handling 
+    signals (LP: #983835)
+
+ -- David Henningsson <david.henningsson@canonical.com>  Thu, 19 Apr 2012 11:27:10 +0200
+
 jackd2 (1.9.8~dfsg.1-1ubuntu1) precise; urgency=low
 
   * Merge from debian unstable (LP: #911342), remaining changes:
diff -Nru jackd2-1.9.8~dfsg.1/debian/patches/0001-jackdbus-Fix-sigsegv-handling-segfaulting-by-itself.patch jackd2-1.9.8~dfsg.1/debian/patches/0001-jackdbus-Fix-sigsegv-handling-segfaulting-by-itself.patch
--- jackd2-1.9.8~dfsg.1/debian/patches/0001-jackdbus-Fix-sigsegv-handling-segfaulting-by-itself.patch	1970-01-01 01:00:00.000000000 +0100
+++ jackd2-1.9.8~dfsg.1/debian/patches/0001-jackdbus-Fix-sigsegv-handling-segfaulting-by-itself.patch	2012-04-19 11:26:58.000000000 +0200
@@ -0,0 +1,45 @@
+From f82ec71566b2c18f159004e00a70c2cf3e46d755 Mon Sep 17 00:00:00 2001
+From: David Henningsson <david.henningsson@canonical.com>
+Date: Tue, 17 Apr 2012 12:33:21 +0200
+Subject: [PATCH 1/2] jackdbus: Fix sigsegv handling segfaulting by itself
+
+In my case, the siginfo code was -6, causing the sigsegv handling
+to crash on its own. This patch adds a range check for siginfo code.
+
+BugLink: https://bugs.launchpad.net/bugs/983835
+Signed-off-by: David Henningsson <david.henningsson@canonical.com>
+---
+ dbus/sigsegv.c |    8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/dbus/sigsegv.c b/dbus/sigsegv.c
+index 03b1183..8a87dc8 100644
+--- a/dbus/sigsegv.c
++++ b/dbus/sigsegv.c
+@@ -60,6 +60,7 @@ static void signal_segv(int signum, siginfo_t* info, void*ptr) {
+     static const char *si_codes[3] = {"", "SEGV_MAPERR", "SEGV_ACCERR"};
+ 
+     size_t i;
++    const char *si_code_str;
+     ucontext_t *ucontext = (ucontext_t*)ptr;
+ 
+ #if defined(SIGSEGV_STACK_X86) || defined(SIGSEGV_STACK_IA64)
+@@ -94,9 +95,14 @@ static void signal_segv(int signum, siginfo_t* info, void*ptr) {
+         jack_error("Unknown bad signal catched!");
+     }
+ 
++    if (info->si_code >= 0 && info->si_code < 3) 
++        si_code_str = si_codes[info->si_code];
++    else
++        si_code_str = "unknown";
++
+     jack_error("info.si_signo = %d", signum);
+     jack_error("info.si_errno = %d", info->si_errno);
+-    jack_error("info.si_code  = %d (%s)", info->si_code, si_codes[info->si_code]);
++    jack_error("info.si_code  = %d (%s)", info->si_code, si_code_str);
+     jack_error("info.si_addr  = %p", info->si_addr);
+ #if !defined(__alpha__) && !defined(__ia64__) && !defined(__FreeBSD_kernel__) && !defined(__arm__) && !defined(__hppa__) && !defined(__sh__)
+     for(i = 0; i < NGREG; i++)
+-- 
+1.7.9.5
+
diff -Nru jackd2-1.9.8~dfsg.1/debian/patches/series jackd2-1.9.8~dfsg.1/debian/patches/series
--- jackd2-1.9.8~dfsg.1/debian/patches/series	2012-01-18 12:54:28.000000000 +0100
+++ jackd2-1.9.8~dfsg.1/debian/patches/series	2012-04-19 11:26:58.000000000 +0200
@@ -2,3 +2,4 @@
 hurd.patch
 no-selfconnect.patch
 netjack-kfreebsd.patch
+0001-jackdbus-Fix-sigsegv-handling-segfaulting-by-itself.patch