On 2021-03-11 11:11:08, Michael Dukelsky (2:5020/1042) wrote to Paul Hayton:

 PH>> I've been hatching some files out using Htick

 PH>> It seems to run and toss a file to nodes fileboxes and also the
 PH>> tics... but at the end of the run I see this

 PH>> 7 Mar:11:2021:16:26:15   Forwarding fire-34.zip with tic
 PH>> 1byzrpvz.tic for
 PH>> 21:1/213 via 21:1/213

 MD> I did not find such a diagnostics in the Husky code:

 PH>> double free or corruption (fasttop)
 PH>> Aborted

This is likely due to free() being called twice on the same pointer somewhere in the Linux build of HTick.

In C this is undefined behaviour, though most operating systems won't flag it as a bug.

$ cat free-twice.c
#include 

int main(void)
{
    char *p;
    p = malloc(42);
    free(p);
    free(p);
    return 0;
}

$ make free-twice
cc     free-twice.c   -o free-twice

$ ./free-twice
free(): double free detected in tcache 2
zsh: abort      ./free-twice

The exact error message probably differs depending on what kernel options are set.

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.2 LTS
Release:        20.04
Codename:       focal

--- GoldED+/BSD 1.1.5-b20180707