linux-kernel - Re: [PATCH v2 1/1] hung_task: fix warnings caused by unaligned lock pointers

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Message-ID: <b43ce4a0-c2b5-53f2-e374-ea195227182d@linux-m68k.org>
Date: Wed, 8 Oct 2025 11:40:09 +1100 (AEDT)
From: Finn Thain <fthain@...ux-m68k.org>
To: Andrew Morton <akpm@...ux-foundation.org>, 
    Geert Uytterhoeven <geert@...ux-m68k.org>, 
    Eero Tamminen <oak@...sinkinet.fi>
cc: Kent Overstreet <kent.overstreet@...ux.dev>, 
    Lance Yang <lance.yang@...ux.dev>, amaindex@...look.com, 
    anna.schumaker@...cle.com, boqun.feng@...il.com, ioworker0@...il.com, 
    joel.granados@...nel.org, jstultz@...gle.com, leonylgao@...cent.com, 
    linux-kernel@...r.kernel.org, linux-m68k@...ts.linux-m68k.org, 
    longman@...hat.com, mhiramat@...nel.org, mingo@...hat.com, 
    mingzhe.yang@...com, peterz@...radead.org, rostedt@...dmis.org, 
    senozhatsky@...omium.org, tfiga@...omium.org, will@...nel.org, 
    stable@...r.kernel.org
Subject: Re: [PATCH v2 1/1] hung_task: fix warnings caused by unaligned lock
 pointers


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.

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).