From: Chris Friesen <chris.friesen@windriver.com>
To: rt-users <linux-rt-users@vger.kernel.org>
Subject: which kernel thread handles NMIs?
Date: Mon, 3 Nov 2014 15:08:19 -0600 [thread overview]
Message-ID: <5457EEC3.5010506@windriver.com> (raw)
We're running with the 3.4 kernel with RT patch, and we're trying to
debug some issues.
One of the issues is that the magic sysrq "l" command to show a stack
backtrace on all CPUs doesn't seem to work, though other magic sysrq
commands do work properly.
Looking at the code, for X86 it seems to call
apic->send_IPI_all(NMI_VECTOR);
Does anyone know what kernel thread would handle NMI_VECTOR? I want to
make sure its priority is sufficiently high.
Thanks,
Chris
next reply other threads:[~2014-11-03 21:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-03 21:08 Chris Friesen [this message]
2014-11-04 1:35 ` which kernel thread handles NMIs? Steven Rostedt
2014-11-04 5:20 ` Chris Friesen
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