Messages in this thread Patch in this message |  | | Date | Mon, 17 Mar 2003 20:42:31 +0100 (CET) | From | Tim Schmielau <> | Subject | [BUG & WORKAROUND] nanosleep() granularity bumps up in 2.5.64 |
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On Mon, 17 Mar 2003, Tim Schmielau wrote:
> On Mon, 17 Mar 2003, Vitezslav Samel wrote: > > > The nanosleep() bug narrowed down to 2.5.63-bk2. That's version, the "initial > > jiffies" patch went in. And yes, it's on i686 machine. > > You can easily check whether it's connected with this change by setting > INITIAL_JIFFIES to zero. This should exactly recover the previous > situation.
OK. I've done the test myself and I plead guilty. As a temporary workaround you can apply the following patch:
--- linux-2.5.64/include/linux/time.h.orig Wed Mar 5 04:29:24 2003 +++ linux-2.5.64/include/linux/time.h Mon Mar 17 20:31:06 2003 @@ -31,7 +31,7 @@ * Have the 32 bit jiffies value wrap 5 minutes after boot * so jiffies wrap bugs show up earlier. */ -#define INITIAL_JIFFIES ((unsigned int) (-300*HZ)) +#define INITIAL_JIFFIES 0
/* * Change timeval to jiffies, trying to avoid the
Still, after half an hour of glancing at the code I can't see my mistake. I've re-checked that the problem does not occur with the original "initial jiffies" patch for 2.4. So I must have missed a (subtle?) difference between 2.4 and 2.5 when I did the forward-port.
Sorry, Tim
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