BUG: spinlock recursion (sys_chdir, user_path_at, do_path_lookup ...)

On Wed, 12 Jan 2011, Uwe Kleine-K?nig wrote:

quoted

[   75.280000]  r5:be961ee4 r4:00063015

I started to bisect, but already the first test case showed a different
error (my getty dying every few seconds).

I bisected this one now, the first bad commit is

	9c0729d (x86: Eliminate bp argument from the stack tracing routines)

.  It made a x86 specific change to include/linux/stacktrace.h.

As I said on IRC already, that's complete nonsense. The commit changes
a function prototype which is only relevant for x86. So how should
that affect ARM ?

According to tglx the lockup above "is related to nicks scalability
stuff".  I havn't researched yet the offending commit.  Is that
necessary?

Only if you are interested that the problem gets fixed.

Thanks,

	tglx