diff -Nru atop-2.9.0/debian/changelog atop-2.9.0/debian/changelog
--- atop-2.9.0/debian/changelog	2023-07-01 14:37:19.000000000 +0000
+++ atop-2.9.0/debian/changelog	2023-10-05 02:25:12.000000000 +0000
@@ -1,3 +1,10 @@
+atop (2.9.0-1ubuntu1) mantic; urgency=medium
+
+  * d/p/atopacctd_return_error.patch: apply upstream patch to fix SIGFPE in
+    acctprocnt() (LP: #1725896, LP: #2037910).
+
+ -- Vladimir Petko <vladimir.petko@canonical.com>  Thu, 05 Oct 2023 15:25:12 +1300
+
 atop (2.9.0-1) unstable; urgency=medium
 
   * new upstream version 2.9.0
diff -Nru atop-2.9.0/debian/control atop-2.9.0/debian/control
--- atop-2.9.0/debian/control	2023-07-01 14:37:19.000000000 +0000
+++ atop-2.9.0/debian/control	2023-10-05 02:25:12.000000000 +0000
@@ -1,7 +1,8 @@
 Source: atop
 Section: admin
 Priority: optional
-Maintainer: Marc Haber <atop@packages.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Marc Haber <atop@packages.debian.org>
 Uploaders: Marc Haber <mh+debian-packages@zugschlus.de>
 Build-Depends: debhelper-compat (= 13), zlib1g-dev, libncurses-dev
 Standards-Version: 4.6.2
diff -Nru atop-2.9.0/debian/patches/atopacctd_return_error.patch atop-2.9.0/debian/patches/atopacctd_return_error.patch
--- atop-2.9.0/debian/patches/atopacctd_return_error.patch	1970-01-01 00:00:00.000000000 +0000
+++ atop-2.9.0/debian/patches/atopacctd_return_error.patch	2023-10-05 02:25:12.000000000 +0000
@@ -0,0 +1,31 @@
+Description: Avoid floating point exception when atopacctd fails
+ When the atopacctd service crashes, it may leave a 0-length shadow file.
+ atopacctd() routine tries to read it and fails. It returns 1 (success)
+ and sets maxshadowrec size to the size from the 'current' file. The rest
+ of the code assumes that the shadow file read was successful and tries
+ to use an empty acct structure, causing a division by zero.
+Author: Gerlof Langeveld <gerlof.langeveld@atoptool.nl>
+Bug: https://github.com/Atoptool/atop/issues/277
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/atop/+bug/2037910
+Applied-Upstream: https://github.com/Atoptool/atop/commit/f72f7c06278ec9ad2209975eca67c2e3c0b3a44b
+Last-Update: 2023-10-08
+--- a/acctproc.c
++++ b/acctproc.c
+@@ -430,7 +430,6 @@ atopacctd(int swon)
+ 				{
+ 					if ( swon && !acctvers(acctfd) )
+ 					{
+-
+ 						int maxcnt = 40;
+
+ 						if ( fork() == 0 )
+@@ -453,7 +452,8 @@ atopacctd(int swon)
+ 								&semunlock, 1);
+
+ 							regainrootprivs();
+-							return 1;
++							maxshadowrec = 0;
++							return -1;  // try other
+ 						}
+ 					}
+
diff -Nru atop-2.9.0/debian/patches/series atop-2.9.0/debian/patches/series
--- atop-2.9.0/debian/patches/series	2023-07-01 14:37:19.000000000 +0000
+++ atop-2.9.0/debian/patches/series	2023-10-05 02:25:12.000000000 +0000
@@ -15,3 +15,4 @@
 no-atopgpud
 handle-default-file
 default
+atopacctd_return_error.patch