* Signals mechanism question
@ 2009-01-18 22:35 agent59624285
0 siblings, 0 replies; only message in thread
From: agent59624285 @ 2009-01-18 22:35 UTC (permalink / raw)
To: linux-kernel
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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