[PATCH 4/5] arm: Fix init_atags_procfs() to check tag->hdr.size

* Tony Lindgren [off-list ref] [091219 09:43]:

* Russell King - ARM Linux [off-list ref] [091219 01:02]:

quoted

On Fri, Dec 18, 2009 at 07:46:30PM -0800, Tony Lindgren wrote:

quoted

The tag->hdr.size cannot be larger than XXX.
Otherwise we can getsomething similar during boot:

Unable to handle kernel paging request at virtual address 61a05020
...

NAK.

Why can't people get the simple ATAG setup right?  Fix the boot loader.

In this case why can't the kernel get ATAG setup right?

This only happens when kexec rebooting multiple times in a row.

Sounds like something is not memset/kzalloc'd somewhere?

Heh. I can't reproduce this any longer. I bet it was caused by
the bug in my earlier reboot script that kept appending another
root= to the cmdline every reboot :)

Tony