On Mon, Mar 05, 2007 at 02:18:24AM +0100, Arnd Bergmann wrote: > On Wednesday 28 February 2007, Chuck Ebbert wrote: > > Can we just put a canary in the threadinfo and check it on every > > task switch? What are the drawbacks? > > It's not completely reliable, in case of functions that allocate > far too much stack space. You might want to take a look at the > gcc support that Andreas Krebbel implemented for s390 to check > for stack overflows:
I hacked this up for x86-64 too at some point (using the gprof support). However it's quite slow. Here's the old 2.4 patch: ftp://ftp.x86-64.org/pub/linux/debug/stackcheck-1 -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
