Re: [PATCH] watchdog: touch_nmi_watchdog should only touch local cpu not every one

2013-12-16 Thread Don Zickus
On Thu, Dec 05, 2013 at 12:42:24PM -0800, Ben Zhang wrote: > I ran into a scenario where while one cpu was stuck and should have panic'd > because of the NMI watchdog, it didn't. The reason was another cpu was > spewing > stack dumps on to the console. Upon investigation, I noticed that when >

[PATCH] watchdog: touch_nmi_watchdog should only touch local cpu not every one

2013-12-05 Thread Ben Zhang
I ran into a scenario where while one cpu was stuck and should have panic'd because of the NMI watchdog, it didn't. The reason was another cpu was spewing stack dumps on to the console. Upon investigation, I noticed that when writing to the console and also when dumping the stack, the watchdog is