Re: [PATCH for-4.19] xen/xmalloc: XMEM_POOL_POISON improvements

["Roger Pau Monné" <roger.pau@citrix.com>]

On Mon, Oct 23, 2023 at 10:04:21AM +0200, Jan Beulich wrote:
> On 20.10.2023 22:26, Andrew Cooper wrote:
> > However, upping to a BUG() can't provide any helpful message out to the user.
> > 
> > I tried modifying BUG() to take an optional message, but xen/bug.h needs
> > untangling substantially before that will work, and I don't have time right now.
> 
> I agree with Julien's suggestion of using panic() in the meantime, as a
> possible alternative.

We might care about the stack trace, so would be helpful to print it,
maybe WARN + panic?

> Question though is whether it's better to halt the
> system right away, as opposed to e.g. permitting orderly shutdown to cover
> the case where the corruption ends up not being "deadly".

Hm, won't this be risky, as we could then possibly corrupt data on disk
for example?

Thanks, Roger.