Date: Sun, 26 Aug 2007 01:30:01 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Harald Schmalzbauer <h.schmalzbauer@omnisec.de> Cc: freebsd-current@freebsd.org Subject: Re: ichwd and teethless watchdogd Message-ID: <86zm0fkxae.fsf@ds4.des.no> In-Reply-To: <200708252233.30392.h.schmalzbauer@omnisec.de> (Harald Schmalzbauer's message of "Sat\, 25 Aug 2007 22\:33\:28 %2B0200") References: <200708231028.07743.h.schmalzbauer@omnisec.de> <86r6lu1rms.fsf@ds4.des.no> <200708252220.27373.h.schmalzbauer@omnisec.de> <200708252233.30392.h.schmalzbauer@omnisec.de>
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Harald Schmalzbauer <h.schmalzbauer@omnisec.de> writes: > I thought I was sure that I checked the bios setting and wd timer was > set to on, but maybe after the laste BIOS update it was reset to off. > Problem solved, the box reboots whe sigkilling watchdogd. Interesting, if your BIOS can disable the WDT without the driver noticing, it must mean that it implements an SMI handler that resets (or perhaps stops) the WDT when it expires. AFAIK there is no (documented) way to either detect or prevent this. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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