[sheepdog] [PATCH] call a default signal handler in crash_handler()

[Liu Yuan]

On 04/12/2013 02:53 PM, MORITA Kazutaka wrote:
> If we don't call the default handler by re-raising the signal, the
> process doesn't dump a core file.  Actually, current collie and logger
> cannot generate a core file.
> 
> Sheep can generate a core file on my environment because the default
> handler is called after crash_handler().  However, the behavior of the
> process when we don't exit in the SIGSEGV handler is not defined
> according to POSIX.  If we call exit() in crash_handler(), we cannot
> get the core file.

Okay, the intention is clear. But I don't still understand the comment
in sd_printf(). This is called inside crash_handler. So this means
logger is terminated but sheep who receive the signal will continue run?
The 'process' in the comment is kind of obscure

Thanks,
Yuan