From: agent59624285 <agent59624285@spamcorptastic.com>
To: linux-kernel@vger.kernel.org
Subject: Signals mechanism question
Date: Sun, 18 Jan 2009 14:35:17 -0800 (PST) [thread overview]
Message-ID: <21534062.post@talk.nabble.com> (raw)
Hello,
I read lately about the signals mechanism, and I have a couple of question
that I couldn't find the answer to them. it would be great if someone would
answer.
1. when handling a signal before changing to user Mode, the kernel copies
data to the user stack. what is the data that he saves in setup_frame()?
2. what signals are blocked while in the signal handler? could this mask be
changed?
3. when does a system call could be reentrant and when it cannot, when
disturbed by a signal?
thanks.
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reply other threads:[~2009-01-18 22:35 UTC|newest]
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