Messages in this thread | | | Date | Mon, 7 Apr 2003 17:40:27 -0700 | From | Andrew Morton <> | Subject | Re: PATCH: jiffies is UL |
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Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: > > diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.67/include/linux/time.h linux-2.5.67-ac1/include/linux/time.h > --- linux-2.5.67/include/linux/time.h 2003-03-06 17:04:37.000000000 +0000 > +++ linux-2.5.67-ac1/include/linux/time.h 2003-03-07 14:57:13.000000000 +0000 > @@ -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 ((unsigned long) (-300*HZ)) >
No, this is deliberate. It triggers a wrap from 0x00000000ffffffff to 0x0000000100000000 after 5 minutes uptime on 64-bit machines, which has found bugs.
The fix is to add a comment, so this patch stops coming out ;)
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