On Fri, Jan 24, 2025 at 12:00:41AM +0100, Magnus Lindholm wrote: > > > > In fact, it's the odd number of longs (29) in struct pt_regs that makes > > the stack misaligned by 8 bytes. The patch below works for me - no more > > oopses in rcu-torture test. > > > > Unless I'm missing something, this change shouldn't have any ill effects. > > > > Ivan. > > > Very nice! This seems to do the trick! I've been chasing this bug for > quite some time now and with this patch it seems to work! applied to > my systems and no problems so far. I was looking at a mail-thread > working with 16-bit stack alignment on x86_64 and there the solution > seems a lot more complex than a one-liner. Also installed kernel with the patch on an ES45 system and it has booted without any OOPses and is running nicely! Cheers Michael.
