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Date: Thu, 10 Jan 2008 21:22:51 -0500 From: Ed Tomlinson <edt@....ca> To: Ingo Molnar <mingo@...e.hu>, Matthew <jackdachef@...il.com>, "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de> Subject: Re: Fwd: Fwd: laptop / computer hardlocks during execution of 32bit applications(binaries) on 64bit system (Gentoo) >> - if yes, does booting with "nmi_watchdog=2 idle=poll" give you a >> working NMI watchdog? (working NMI watchdog means the NMI counts >> increase for all cores in /proc/interrupts). > booting with the above gives me an incrementing NMI counter in /proc/interrupts Ingo, Is there anything else that needs to be set in the kernel config for the nmi watchdog to trigger? I ask because I just had a hang but nothing showed on the _serial_ console - I waited a couple of minutes before rebooting.... Is there any other way to verify the watchdog is working? I seem to need X active with mix of 32 and 64 bit applications active to get hung here. A massivily threaded 64 bit java app along with 32 bit firefox and a wine active will eventually trigger things here. If I had to guess I would say that it the switch from 32 to 64 (or vise versa) that triggers the isuue. TIA & test/debug patches welcome, Ed Tomlinson -- 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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