Core was generated by `blktrace -d /dev/hdc'.
Program terminated with signal 11, Segmentation fault.
#0 0xb7e4cdec in ?? ()
(gdb) where
#0 0xb7e4cdec in ?? ()
#1 0xb7dbf000 in ?? ()
#2 0x00021000 in ?? ()
#3 0xb7dee6e8 in ?? ()
#4 0x0804ecf0 in ?? ()
#5 0x00000001 in ?? ()
#6 0x6c616367 in ?? ()
#7 0xbfee3f68 in ?? ()
#8 0xb7f51300 in ?? ()
#9 0x00000168 in ?? ()
#10 0x0804ecf0 in ?? ()
#11 0x00000001 in ?? ()
#12 0xbfee3f88 in ?? ()
#13 0xbfee3f68 in ?? ()
#14 0x080499dc in close_thread (tip=0xb7f1eff4) at blktrace.c:637
Backtrace stopped: frame did not save the PC
(gdb)
the below diff fix the same.
diff --git a/blktrace.c b/blktrace.c
index 42613a7..4f4fcde 100644
--- a/blktrace.c
+++ b/blktrace.c
@@ -1220,6 +1220,7 @@ static int start_devices(void)
size = ncpus * sizeof(struct thread_information);
thread_information = malloc(size * ndevs);
+ memset(thread_information, 0, size*ndevs);
if (!thread_information) {
fprintf(stderr, "Out of memory, threads (%d)\n", size * ndevs);
return 1;
-
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