newfs silently fails if random is not ready (?)
cem at freebsd.org
Tue Sep 4 21:05:46 UTC 2018
On Tue, Sep 4, 2018 at 1:55 PM, Lev Serebryakov <lev at freebsd.org> wrote:
> Tuesday, September 4, 2018, 11:37:59 PM, you wrote:
>> Is newfs tripping on a raise()/abort() in arc4random(3) /
> Nope, it is silently does nothing
I think it is tripping on raise/abort() in one of these routines, but
nothing is printing that information. See below.
>> Is your program that runs newfs checking for non-zero
>> exit status?
> It is not "my" program, it is system mdmfs(8), and it checks exit
> statuses, as far as I can see from source code.
Ah, thanks. I missed this. mdmfs(8) has a bug in its run() function.
It treats programs that exit with a signal (KILL, ABRT, ILL, SEGV...)
the same as programs that exit with success. This is a (major)
problem and the reason raise/abort is not visible.
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