Messages in this thread | | | Date | Thu, 10 Apr 2014 20:57:24 +0200 | From | Borislav Petkov <> | Subject | Re: df36ac1bc2a16 ("pstore: Don't allow high traffic options on fragile devices") |
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On Thu, Apr 10, 2014 at 06:34:34PM +0000, Luck, Tony wrote: > Speed is also a factor ... waiting for flash to update for each > printk() would mess up timing so much that you might not see the > problem you are chasing.
Gaah, there's that too. I guess nvram access speeds slower than in the msec range (I'm looking at my printk timestamps) are no good for us.
> A better EFI trick for this would be "capsules". They live in regular > RAM and BIOS firmware does stuff with them at warm reset time. Matt > has been looking at them - but BIOS support for them seems sketchy to > none right now.
Hmm, I'm wondering whether we could put a bunch of sanity checks into fwts to run on a box and check needed capsules functionality before logging to one.
Matt, looks like we have ourselves a new project. :-)
-- Regards/Gruss, Boris.
Sent from a fat crate under my desk. Formatting is fine. --
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