Blaisorblade wrote:
> Using > /dev/null 2>&1 is not suitable?

Well yes, that might also help.
However, when you supply a daemon mode, I think it is also a good idea to
add a silent feature, so that it is more easily and cleanly scriptable.

> Also happens to me, with a single daemon not connected to anything ;-).
> It was a bug of -daemon compared to < /dev/null. Just fixed in attached 
> patch. 
> Please test it.

Works as a charm.

> In fact, docs do not talk about '-daemon' - I was the first to document it 
> when happening to see it in sources. The web page says:

Well, Matt Zimmerman of the Debian team also found it and even wrote a
whole nice man page for uml_switch (and other tools) that comes with
"apt-get install uml-utilities" :)

>> Yes, but it's also spamming with messages that it cannot write to fd 4.
> 
> The attached patch should remove them too, but I didn't try to reproduce this 
> bug. Could you please post the exact error you are currrently getting so that 
> I now if I'm fixing the right thing? I think there's a (currently harmless) 
> bug there, since EAGAIN is not ignored and sockets are set as O_NONBLOCK. 
> Luckily it just prints a message, it does not close the socket for a write 
> failure.

send_sock sending to fd 4 Resource temporarily unavailable

However, this message disappears when using your patch.

> Can you also look during that at what fd 4 is via ls /proc/$switch_pid/fd?

/proc/11671/fd/4 -> socket:[65423]

I'm sorry, but I don't really know how to get more information besides
that...

Jeroen.

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