Re: [PATCH v2 1/1] hung_task: fix warnings caused by unaligned lock pointers
From: Finn Thain
Date: Wed Oct 08 2025 - 02:15:17 EST
On Wed, 8 Oct 2025, Lance Yang wrote:
> On 2025/10/8 08:40, Finn Thain wrote:
> >
> > On Tue, 7 Oct 2025, Andrew Morton wrote:
> >
> >> Getting back to the $Subject at hand, are people OK with proceeding
> >> with Lance's original fix?
> >>
> >
> > Lance's patch is probably more appropriate for -stable than the patch I
> > proposed -- assuming a fix is needed for -stable.
>
> Thanks!
>
> Apart from that, I believe this fix is still needed for the hung task
> detector itself, to prevent unnecessary warnings in a few unexpected
> cases.
>
Can you be more specific about those cases? A fix for a theoretical bug
doesn't qualify for -stable branches. But if it's a fix for a real bug, I
have misunderstood Andrew's question...
> >
> > Besides those two alternatives, there is also a workaround:
> > $ ./scripts/config -d DETECT_HUNG_TASK_BLOCKER
> > which may be acceptable to the interested parties (i.e. m68k users).
> >
> > I don't have a preference. I'll leave it up to the bug reporters (Eero
> > and Geert).
>