Messages in this thread | | | Date | Thu, 23 Oct 2014 12:30:36 +0100 | From | One Thousand Gnomes <> | Subject | Re: [PATCH -next 11/27] tty: Don't release tty locks for wait queue sanity check |
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> (and -- don't laugh -- explore why printk disables interrupts and prevents > cpu migration while calling the console drivers. Seems ok to me...)
It disables interrupts so that the chance of the oops getting out is maximised, it locks down some of the other bits to try and stop interleaved oopses producing garbage when say a 16 way server goes pop and all the cpus oops at once.
Not sure about the migration 8)
Alan
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