!169 Fix for 'sys' to properly display the PANIC message

From: @lliuzhi 
Reviewed-by: @dillon_chen 
Signed-off-by: @dillon_chen

backport-fix-for-sys-to-properly-display-the-PANIC-m.patch

@@ -0,0 +1,66 @@
+From db0077614aaeda6d0ed557f2b91d3349d5fe430f Mon Sep 17 00:00:00 2001
+From: Austin Kim <austindh.kim@gmail.com>
+Date: Tue, 29 Oct 2024 17:32:07 +0900
+Subject: [PATCH] Fix for 'sys' to properly display the PANIC message
+
+Using 'sys' command, we can view the panic message with general system
+information. If we run RISCV64-based vmcore, PANIC message is not properly
+displayed.
+
+The reason is that the string "Unable to handle kernel" is not
+completely matched with the panic_msg[]. The corresponding kernel commit
+is 21733cb518471.
+
+Without the patch:
+  crash> sys
+        KERNEL: vmlinux  [TAINTED]
+      DUMPFILE: vmcore
+          CPUS: 4
+          DATE: Thu Aug 22 16:13:08 KST 2024
+        UPTIME: 00:33:25
+  LOAD AVERAGE: 0.07, 0.07, 0.02
+         TASKS: 385
+      NODENAME: starfive
+       RELEASE: 6.6.20+
+       VERSION: #13 SMP Mon Aug 19 12:58:52 KST 2024
+       MACHINE: riscv64  (unknown Mhz)
+        MEMORY: 4 GB
+         PANIC: ""
+
+With the patch:
+  crash> sys
+        KERNEL: vmlinux  [TAINTED]
+      DUMPFILE: vmcore
+          CPUS: 4
+          DATE: Thu Aug 22 16:13:08 KST 2024
+        UPTIME: 00:33:25
+  LOAD AVERAGE: 0.07, 0.07, 0.02
+         TASKS: 385
+      NODENAME: starfive
+       RELEASE: 6.6.20+
+       VERSION: #13 SMP Mon Aug 19 12:58:52 KST 2024
+       MACHINE: riscv64  (unknown Mhz)
+        MEMORY: 4 GB
+         PANIC: "Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000000000000"
+
+Signed-off-by: Austin Kim <austindh.kim@gmail.com>
+---
+ task.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/task.c b/task.c
+index c131cc32..33de7da2 100644
+--- a/task.c
++++ b/task.c
+@@ -6392,6 +6392,11 @@ get_panicmsg(char *buf)
+ 			get_symbol_data("sysrq_pressed", sizeof(int), &msg_found);
+ 			break;
+ 		}
++
++		/*
++		 *  Try to search panic string in panic keywords
++		 */
++		search_panic_task_by_keywords(buf, &msg_found);
+ 	}
+ 
+ found:

crash.spec

@@ -1,6 +1,6 @@
 Name: crash
 Version: 8.0.5
-Release: 8
+Release: 9
 Summary: Linux kernel crash utility.
 License: GPLv3
 URL: https://crash-utility.github.io
@@ -14,6 +14,9 @@ Patch3: 0003-crash-8.0.4-add-support-for-loongarch64.patch
 Patch4: 0004-arm64-fix-a-potential-segfault-when-unwind-frame.patch
 Patch5: 0005-arm64-fix-SDEI-stack-frame-unwind-while-UNW_4_14-is-.patch
 Patch9001: huawei-fix-ps-error-when-mm_struct.rss_stat-is-lazy-initial.patch
+%ifarch riscv64
+Patch6: backport-fix-for-sys-to-properly-display-the-PANIC-m.patch
+%endif
 
 BuildRequires: ncurses-devel zlib-devel lzo-devel snappy-devel texinfo libzstd-devel 
 BuildRequires: gcc gcc-c++ bison m4
@@ -59,6 +62,9 @@ created by manufacturer-specific firmware.
 %patch 4 -p1
 %patch 5 -p1
 %patch 9001 -p1
+%ifarch riscv64
+%patch 6 -p1
+%endif
 
 %build
 cp %{SOURCE1} .
@@ -93,6 +99,9 @@ install -D -m 0644 defs.h %{buildroot}%{_includedir}/%{name}/defs.h
 %{_mandir}/man8/crash.8*
 
 %changelog
+* Mon Jul 14 2025 liuzhilin <liuzhilin@kylinos.cn> - 8.0.5-9
+- backport Fix for 'sys' to properly display the PANIC message patch.
+
 * Wed Jun 04 2025 wangxiao <wangxiao184@h-partners.com> - 8.0.5-8
 - use patch command to apply patches for consistency in context