On 12/06/2013 09:12 PM, Pádraig Brady wrote: > On 12/06/2013 08:58 PM, Bernhard Voelker wrote: >> On 12/06/2013 06:45 PM, Pádraig Brady wrote: > >>> Even at that the test is still brittle, >>> as the guard only checks that `strace -e stat` works. >>> Also it's conceivable that on some edge cases there >>> may be more than one stat call used in this case. >> >> I must confess that I don't understand this, i.e. in which circumstances >> this test would fail as it has been working long enough, and now just >> is ported to another architecture. > > So I'm worried that the system might have a version > of strace that doesn't support say newfstatat for example. > Now my removing of the -e ... above will avoid the immediate: > strace: invalid system call `newfstatat' > But strace may then output something that `grep stat..` doesn't match, > thuse messing up the counts and failing the test. > > I'll sleep on it as I'm rushing off now. I going with the attached which should handle everything, even diagnosis of unhandled "stat" calls. thanks, Pádraig.