Re: Traceback with CONFIG_REGMAP_KUNIT=y+CONFIG_DEBUG_ATOMIC_SLEEP=y

[Guenter Roeck]

On 7/20/23 08:07, Mark Brown wrote:
> On Thu, Jul 20, 2023 at 08:03:13AM -0700, Guenter Roeck wrote:
> > On 7/20/23 07:31, Mark Brown wrote:
>
> > > They're both independently fine, but I wouldn't expect anything that's
> > > running in atomic context to be actually using dynamic allocations.
>
> > Which one do you prefer ? As I mentioned in my second patch, there are
> > two drivers which use fast_io together with REGCACHE_RBTREE and thus
> > are likely affected by this problem. Dan's solution would cover that,
> > while my current RFC patch would likely cause those drivers to fail.
> > Plus, of course, they could get stuck if they actually end up trying to
> > sleep while allocating memory.
>
> Like I say I don't think it's an either/or - we can do both
> independently, they both make sense standalone and don't conflict with
> each other.

I guess I am missing something. I have not tried it, but wouldn't my patches
be unnecessary if Dan's patch is applied ?

Thanks,
Guenter