On Mon, 13 Dec 2004 21:46:56 +0900, Horms wrote:
[...] > > Hi, > > I think that I have discovered the cause of the problem. > > It seems to be caused by the 093_tty_lockup.diff patch which was applied > to resolve CAN-2004-081, a security bug relating to race > conditions in the TTY subsystem. The patch was sourced from > Jason Baron from Red Hat. I have attached it for reference. > > In testing I found that the problem lies in the following change > in include/linux/tty.h > > -extern struct tty_ldisc ldiscs[]; > +extern struct tty_ldisc tty_ldiscs[]; > > Backing out this change then runing something along the lines of > make mrproper > cp some_path/some_config .config > make oldconfig > make dep > > yields the same symbols. > > (This test was done using the 686-smp config from > kernel-image-i386-2.4.27 -6 and examining the > proc_mkdir symbol which is found in include/linux/modules/root.ver) > > Of course this does not compile because my change is bogus, > but I think it does establish the cause of the symbol problem. > > > I believe that there are serveral different fixes for this problem, and > in particular the one that was incoporated in 2.6 is somewhat different
