ichwd and teethless watchdogd

Dag-Erling Smørgrav des at des.no
Sat Aug 25 16:30:08 PDT 2007


Harald Schmalzbauer <h.schmalzbauer at 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
-- 
Dag-Erling Smørgrav - des at des.no


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