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authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>2019-04-03 10:02:14 +0300
committerLen Brown <len.brown@intel.com>2019-08-31 21:48:34 +0300
commiteeb71c950bc6eee460f2070643ce137e067b234c (patch)
treed1f0bab9936963c4a0c138f9df39342727083288 /tools
parent605736c6929d541c78a85dffae4d33a23b6b2149 (diff)
downloadlinux-eeb71c950bc6eee460f2070643ce137e067b234c.tar.xz
tools/power turbostat: fix buffer overrun
turbostat could be terminated by general protection fault on some latest hardwares which (for example) support 9 levels of C-states and show 18 "tADDED" lines. That bloats the total output and finally causes buffer overrun. So let's extend the buffer to avoid this. Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'tools')
-rw-r--r--tools/power/x86/turbostat/turbostat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 2fb5c155289b..f8f4e1c130a6 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -5131,7 +5131,7 @@ int initialize_counters(int cpu_id)
void allocate_output_buffer()
{
- output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
+ output_buffer = calloc(1, (1 + topo.num_cpus) * 2048);
outp = output_buffer;
if (outp == NULL)
err(-1, "calloc output buffer");