On 4/21/2021 12:38 PM, Min Hu (Connor) wrote:
Variable total, which may be zero and result in segmentation fault.
This patch fixed it.
Fixes: 9b1249d9ff69 ("app/testpmd: support dumping socket memory")
Cc: sta...@dpdk.org
Signed-off-by: Min Hu (Connor) <humi...@huawei.com>
---
app/test-pmd/cmdline.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 08da2b1..cde0a00 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -9631,6 +9631,9 @@ dump_socket_mem(FILE *f)
socket_stats.alloc_count,
socket_stats.free_count);
}
+
+ if (total == 0)
+ return;
fprintf(f,
"Total : size(M) total: %.6lf alloc: %.6lf(%.3lf%%) free: %.6lf
\tcount alloc: %-4u free: %u\n",
(double)total / (1024 * 1024), (double)alloc / (1024 * 1024),
Hi Connor,
Not sure if the value can be zero on practice, but if the issue is found via
static analyzer tool, instead of return from function without any output what
about following instead:
- (double)alloc * 100 / (double)total,
+ total ? ((double)alloc * 100 / (double)total) : 0,
