kmap_high calls BUG()
From: Ritesh Ranjan <hidden>
Date: 2013-11-21 15:47:51
*Sorry for the previous incomplete mail*
In highmem.c, the function kmap_high() does the following :
BUG_ON(pkmap_count[PKMAP_NR(vaddr)] < 2);
Why would this be a " serious bug"?
Don't usable entry have pkmap_count[] value as 0. (in map_new_virtual() )
if (!pkmap_count[last_pkmap_nr])
break;
How does that work! usable entries have pkmap_count zero but any value
less than 2 is a bug!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20131121/da045da5/attachment-0001.html