linux-kernel - Re: [PATCH v8 0/11] KGDB/KDB FIQ (NMI) debugger

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Date:	Thu, 20 Sep 2012 08:40:23 -0500
From:	Jason Wessel <jason.wessel@...driver.com>
To:	Anton Vorontsov <anton.vorontsov@...aro.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Russell King <linux@....linux.org.uk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alan Cox <alan@...ux.intel.com>,
	Arve Hjønnevåg <arve@...roid.com>,
	Colin Cross <ccross@...roid.com>,
	Brian Swetland <swetland@...gle.com>,
	John Stultz <john.stultz@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linaro-kernel@...ts.linaro.org>, <patches@...aro.org>,
	<kernel-team@...roid.com>, <kgdb-bugreport@...ts.sourceforge.net>,
	<linux-serial@...r.kernel.org>
Subject: Re: [PATCH v8 0/11] KGDB/KDB FIQ (NMI) debugger

On 09/19/2012 06:40 PM, Anton Vorontsov wrote:
> Hi all,
>
> In v8, addressed Jason's comments:
>
> - Changed kgdb_enable_nmi() weak function to kgdb_arch callbck;
> - We no longer register disable_nmi command if arch does not register
>   KGDB NMI handling (i.e. not filling kgdb_arch.enable_nmi callback);
> - The same is for ttyNMI: if architecure does not provide us with
>   enable_nmi call, we don't need the tty device. Of course, there is no
>   way to tell wether a specific serial device can be used for NMI
>   debugging, as it is not serial-device specific, but specific to
>   whether IRQ can be rerouted to an NMI (for most our cases, pretty
>   much every IRQ can be rerouted, e.g. a hot-pluggable serial device on
>   a PCI bus).
> - Rebased on the latest and greatest tty-next, just in case.


I have the kgdb regression builder running right now (it will be done in about 1 hour), and so far it picked up one new warning.

drivers/tty/serial/kgdb_nmi.c: In function 'kgdb_nmi_poll_one_knock':
drivers/tty/serial/kgdb_nmi.c:161: warning: field width should have type 'int', but argument 4 has type 'size_t'

Jason.
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