On Thu, Jun 13, 2013 at 03:58:37PM -0400, Vince Weaver wrote:
> On Thu, 13 Jun 2013, Tommi Rantala wrote:
>
> > [221186.493638] traps: trinity-child30[375] trap divide error
> > ip:40dbae sp:7fff3c1d7ae0 error:0 in trinity[400000+28000]
>
> diff --git a/syscalls/perf_event_open.c b/syscalls/perf_event_open.c
> index 32c11cf..11f49e8 100644
> --- a/syscalls/perf_event_open.c
> +++ b/syscalls/perf_event_open.c
> @@ -406,6 +406,14 @@ static long long random_sysfs_config(__u32 *type, __u64 *config1) {
> int i,j;
> long long c=0,c1=0;
>
> + if (num_pmus==0) {
> + /* For some reason we didn't get initialized */
> + /* Fake it so we don't divide by zero */
> + *type=rand32();
> + *config1=rand64();
> + return rand64();
> + }
Probably safer ?
+ *type = rand32() | 1;
+ *config1 = rand64() | 1;
+ return rand64() | 1;
Dave
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