Messages in this thread | | | Subject | Re: [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception | From | Arjan van de Ven <> | Date | Mon, 4 Apr 2016 08:36:35 -0700 |
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On 4/4/2016 8:32 AM, Andy Lutomirski wrote: > > Adding locking would be easy enough, wouldn't it? > > But do any platforms really boot a second CPU before switching to real > printk? Given that I see all the smpboot stuff in dmesg, I guess real > printk happens first. I admit I haven't actually checked.
adding locking also makes things more fragile in terms of getting the last thing out before you go down in flaming death....
until it's a proven problem, this early, get the message out at all is more important than getting it out perfectly, sometimes.
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