Messages in this thread |  | | From | Keith Owens <> | Subject | Re: Driver callback routine when panic() is called | Date | Sat, 17 Nov 2001 22:38:00 +1100 |
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On Fri, 16 Nov 2001 20:30:23 -0500, "Pinyowattayakorn, Naris" <np151003@exchange.SanDiegoCA.NCR.COM> wrote: >Is there any call that can be used for a driver to register system crash >callback routines. Thus, If panic( ) is called, such a callback can save >device-state information to be written into the system crash dump file.
notifier_chain_register(&panic_notifier_list, ...)
See the kdb patch[1] for example code. Remember that all but one cpus are dead by the time you are called, I hope all your IRQs go to the single live cpu.
[1] ftp://oss.sgi.com/projects/kdb/download/ix86
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