Calling free() in signal handler -> hang

Pat Kane pekane52 at
Wed Mar 28 00:48:59 PDT 2007

On 3/27/07, Bernardo Innocenti <bernie at> wrote:
> Well, you can also call a bunch of safe lib functions as specified
> by POSIX (see the NOTES section of the signal(2) Linux manpage).

Hmmm, so the signal handler could open() the device driver(s)  and
some commands.     Or maybe it could write some data down a pipe that
causes some reset "thread" to get control.

Is POSIX conformance a requirement for
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