I've no good ideas on that one. Could be due to permissions or lack of space on gdb's current working directory? Perhaps take a look with pwd and change it with cd? On 8 March 2018 at 14:38, Rob Scheepens <rob.scheepens@xxxxxxxxxxx> wrote: > Btw.: this is the error I got when trying to generate a dump: > > (gdb) generate-core-file > warning: cannot close "core.3784": Invalid operation > Can't create a corefile > (gdb) -- Sitsofe | http://sucs.org/~sits/ -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html