Guzman Lugo, Fernando wrote:
+ patemp = pa;
+ while (temp++ < num4KEntries) {
+ /* FIXME: This is a hack to avoid getting pages for
+ * video overlay */
+ if (pfn_valid(__phys_to_pfn(patemp))) {
+ pg = phys_to_page(patemp);
+ get_page(pg);
+ if (page_count(pg) <= 1) {
+ printk(KERN_EMERG "DSPBRIDGE:MAP "
+ "function: COUNT 0 FOR PA "
+ "0x%x\n", patemp);
+ printk(KERN_EMERG "Bad page state"
+ "in process '%s'\n"
+ "page:%p flags:0x%0*lx "
+ "mapping:%p mapcount:%d "
+ "count:%d\n"
+ "Trying to fix it up, but "
+ "a reboot is needed\n"
+ "Backtrace:\n",
+ current->comm, pg,
+ (int)(2*sizeof(unsigned long)),
+ (unsigned long)pg->flags,
+ pg->mapping, page_mapcount(pg),
+ page_count(pg));
+ dump_stack();
+ BUG_ON(1);
+ }
+ }
Sorry for repeating myself, I just thought I have a good
suggestion. You could try the Obfuscated C code contest
and win some money with this code:
http://www.ioccc.org
:-)
--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
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