xdp-dump/xdpdump.h: Increase MAX_CPUS to 512

Previously, MAX_CPUS was set to 256. This causes the tool to exit with a failure on systems with more than 256 CPUs. For example, an AMD EPYC server with two AMD EPYC 9684X 96-Core Processors reports 384 CPUs to the kernel due to hyperthreading. This fix allows such systems to run the xdpdump utility. Signed-off-by: Lucas Crijns <[email protected]>
xdp-project · Mar 4, 2025 · bf4e962 · bf4e962
1 parent 9cd2ed6
commit bf4e962
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/xdp-dump/xdpdump.h b/xdp-dump/xdpdump.h
@@ -11,7 +11,7 @@
  ******************************************************************************/
 #define PERF_MAX_WAKEUP_EVENTS   64
 #define PERF_MMAP_PAGE_COUNT	256
-#define MAX_CPUS		256
+#define MAX_CPUS		512
 
 /******************************************************************************
  * General used macros