Messages in this thread | | | Subject | Re: [PATCH] Fix CPU bitmask truncation | From | Alan Cox <> | Date | 25 Dec 2002 21:43:08 +0000 |
| |
On Fri, 2002-12-20 at 17:00, Bjorn Helgaas wrote: > This was an issue with gcc 2.96 on a 64-way IA64 box. I don't have > access to one at the moment, but as I remember, without the 2.4 changes: > > - ((p)->cpus_runnable & (p)->cpus_allowed & (1 << cpu)) > + ((p)->cpus_runnable & (p)->cpus_allowed & (1UL << cpu)) > > nothing would get scheduled on CPUs 32-63. I guess those changes > aren't controversial, though.
Is this a C quirk or a compiler bug ?
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |