Re: In many cases softlockup can not be reported after disablingIRQ for long time

From: Cong Wang
Date: Wed Feb 01 2012 - 05:51:44 EST

(Please don't top-reply.)

On 02/01/2012 10:18 AM, TAO HU wrote:
Hi, Don

Thanks for your feedback!

Unfortunately, the hardlockup depends on NMI which is not available on
ARM (Cortex-A9) per my understanding.
Our system uses OMAP4430. Any more suggestions?

When there is no NMI, touch_nmi_watchdog() actually touches softlockup watchdog:

#include <asm/nmi.h>
extern void touch_nmi_watchdog(void);
static inline void touch_nmi_watchdog(void)

so you need to check if other places calling touch_nmi_watchdog() especially on ARM.
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