While trying to build the memory resource controller with the latest kernel source, I saw the following in config-generic #NOTE: Before changing the size below, take notice that page struct will grow past a cacheline on 32 bit. I am running F10-alpha 32 bit version, on which I see Linux localhost.localdomain 2.6.27-0.166.rc0.git8.fc10.i686 #1 SMP Mon Jul 21 20:51:26 EDT 2008 i686 i686 i386 GNU/Linux sizeof(vma)=84 bytes sizeof(page)=56 bytes sizeof(inode)=608 bytes sizeof(dentry)=160 bytes sizeof(ext3inode)=860 bytes sizeof(buffer_head)=56 bytes sizeof(skbuff)=184 bytes sizeof(task_struct)=6056 bytes With size at 56 bytes, I don't think adding 4 bytes will affect the growth beyond cacheline size. I suspect that there are a few debugging options turned on, that are causing either spinlock_t to bloat or something that CONFIG_PAGE_OWNER is turned on. Are these debugging options going to go away as we head towards F10 release? Balbir -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
