Messages in this thread | | | Date | Mon, 20 Feb 2006 13:18:47 -0800 (PST) | Subject | softlockup interaction with slow consoles | From | "David S. Miller" <> |
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When register_console() runs, it dumps the entire log buffer to the console device with interrupts off.
If you're going over a slow console, this can easily take more than 10 seconds especially on SMP with many cpus brought up.
This makes the softlock fire, which is terribly annoying :-)
I think the bug is in the console registry code, I think it should capture chunks of the existing console buffer into some local memory and push things piece by piece with interrupts enabled to the console driver(s).
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