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Message-ID: <1301426560.4049.0.camel@m0nster> Date: Tue, 29 Mar 2011 12:22:40 -0700 From: Daniel Walker <dwalker@...o99.com> To: Jeff Ohlstein <johlstei@...eaurora.org> Cc: Bryan Huntsman <bryanh@...eaurora.org>, David Brown <davidb@...eaurora.org>, linux-arm-msm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Russell King <linux@....linux.org.uk>, Stepan Moskovchenko <stepanm@...eaurora.org>, Gregory Bean <gbean@...eaurora.org>, Abhijeet Dharmapurikar <adharmap@...eaurora.org> Subject: Re: [PATCH] msm: watchdog: support watchdog on 8x60 and 8960 On Fri, 2011-03-25 at 19:18 -0700, Jeff Ohlstein wrote: > The msm watchdog driver is present in kernel only. It does not use the > built-in Linux watchdog api. This is because the primary function of > our watchdog is detecting bus lockups and interrupts being turned off > for long periods of time. We wanted this functionality to be present > regardless of the userspace the kernel is running beneath. Userspace > is > free to have its own watchdog implemented in software. Are you saying this is mostly a debugging facility ? The interrupts off thing I can see as just debugging, but I don't understand the bus lockups part. Daniel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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