Re: [PATCH] um: Fix get_signal() usage
From: Richard Weinberger
Date: Sat Jan 09 2016 - 04:52:19 EST
Am 09.01.2016 um 04:51 schrieb Al Viro:
> On Wed, Nov 18, 2015 at 09:51:43AM +0100, Richard Weinberger wrote:
>> If get_signal() returns us a signal to post
>> we must not call it again, otherwise the already
>> posted signal will be overridden.
>> Before commit a610d6e672d this was the case as we stopped
>> the while after a successful handle_signal().
> Old behaviour had been wrong. If you have several pending signals,
> more than one sigframe should be built, as if the second, etc. had
> been delivered right on the entry into the handler.
> Stopping after the first one is obviously wrong - consider the case
> when attempt to deliver it has raised SIGSEGV.
You are right. Thanks for pointing this out.