Messages in this thread |  | | From | "Ulrich Windl" <> | Date | Tue, 6 Feb 2001 11:20:48 +0100 | Subject | 2.4.x: spinlock problem |
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Hello,
I had reported this before: In 2.4.0 getting exact system time from interrupt handlers seems inaccurate (in 2.2.18 it works fine). I have applied the same modifications to the 2.4 code base as to 2.2.
With 2.4.1 the kernel is incredibly slow, so you can watch the individual lines of kernel boot be printed on the screen.
I checked the spinlocks, but could not find a problem. Before I start removing the new spinlocks for timer, PIC and RTC, I'd like to hear what the gurus might think.
I also tried to find out how I can profile the kernel or trace the spinlocks, but that seems to be hardly documented.
Any hints?
Regards, Ulrich
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