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From: Fabiano Ramos <fabramos@bol.com.br>
To: linux-kernel@vger.kernel.org
Subject: task switching at Page Faults
Date: Mon, 19 Apr 2004 15:32:59 -0300	[thread overview]
Message-ID: <1082399579.1146.15.camel@slack.domain.invalid> (raw)

Hi all.

	I am in doubt about the linux kernel behaviour is this situation:
supose a have the process A, with the highest realtime
priority and SCHED_FIFO policy. The process then issues a syscall,
say read():

	1) Can I be sure that there will be no process switch during the
syscall processing, even if the system call causes a page fault?

	2) What if the process was a non-realtime processes (ordinary
one, SCHED_OTHER)?


Thanks a lot.
Fabiano


             reply	other threads:[~2004-04-19 18:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-19 18:32 Fabiano Ramos [this message]
2004-04-19 19:49 ` task switching at Page Faults Mikulas Patocka
2004-04-19 20:12   ` Fabiano Ramos
2004-04-19 23:07     ` Mikulas Patocka
2004-04-20  1:32 ` Richard B. Johnson
2004-04-20  8:16 ` Helge Hafting
     [not found] <1MN62-7wz-5@gated-at.bofh.it>
     [not found] ` <1MNpu-7QI-35@gated-at.bofh.it>
2004-04-19 21:52   ` Andi Kleen

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