Messages in this thread Patch in this message | | | From | Pingfan Liu <> | Subject | [PATCH 3/3] Documentation: introduce a param "irqflood_suppress" | Date | Thu, 22 Oct 2020 13:56:03 +0800 |
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The param "irqflood_suppress" is helpful for capture kernel to survive irq flood.
Signed-off-by: Pingfan Liu <kernelfans@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: "Guilherme G. Piccoli" <gpiccoli@canonical.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: afzal mohammed <afzal.mohd.ma@gmail.com> Cc: Lina Iyer <ilina@codeaurora.org> Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com> Cc: Maulik Shah <mkshah@codeaurora.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Oliver Neukum <oneukum@suse.com> To: linux-kernel@vger.kernel.org Cc: linux-doc@vger.kernel.org Cc: kexec@lists.infradead.org --- Documentation/admin-guide/kernel-parameters.txt | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a106874..0a25a05 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2009,6 +2009,9 @@ for it. Also check all handlers each timer interrupt. Intended to get systems with badly broken firmware running. + irqflood_suppress [HW] + When a irq fully occupies a cpu in a long time, suppressing + it to make kernel move on. It is useful in the capture kernel. isapnp= [ISAPNP] Format: <RDP>,<reset>,<pci_scan>,<verbosity> -- 2.7.5
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