On Thu, 27 Oct 2005, Eric W. Biederman wrote:
>
> Alex Lyashkov <[email protected]> writes:
>
> > seems to bad patch. you dereference pointer (1) before check to NULL(2).
>
> Duh. I forgot to delete the earlier references.
> That should have been...
Thank you Eric, the patch you resent has fixed the problem,
which originally happened on vanilla 2.6.13.
But, on such an unusual case, I prefer to mark it unlikely() and
output some warning message.
> + /* Ignore spurious IPIs */
> + if (!call_data)
> + return;
if (unlikely(!call_data)) {
printk(KERN_WARNING "spurious IPI on CPU#%d, ignored\n",
smp_processor_id());
return;
}
Please take this if you like it, Eric. I have also tested this
printk-added code.
Regards,
--
OBATA Noboru ([email protected])
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