Messages in this thread | | | Date | Fri, 11 Jan 2002 11:31:31 +0000 | From | Russell King <> | Subject | Re: [patch] O(1) scheduler, -H5 |
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On Fri, Jan 11, 2002 at 01:38:51AM +0100, Ingo Molnar wrote: > it adds code to catch places that call schedule() from global-cli() > sections. Right now release_kernel_lock() doesnt automatically release the > IRQ lock if there is no kernel lock held. A fair amount of code does this > still, and i think we should fix them in 2.5.
The serial driver (old or new) open/close functions are one of the worst offenders of the global-cli-and-hold-kernel-lock-and-schedule problem. I'm currently working on fixing this in the new serial driver.
-- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html
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