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Wed, 10 Sep 2025 04:02:33 -0400 (EDT) Date: Wed, 10 Sep 2025 18:02:43 +1000 (AEST) From: Finn Thain To: Andreas Schwab cc: Kent Overstreet , Lance Yang , akpm@linux-foundation.org, amaindex@outlook.com, anna.schumaker@oracle.com, boqun.feng@gmail.com, geert@linux-m68k.org, ioworker0@gmail.com, joel.granados@kernel.org, jstultz@google.com, leonylgao@tencent.com, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, longman@redhat.com, mhiramat@kernel.org, mingo@redhat.com, mingzhe.yang@ly.com, oak@helsinkinet.fi, peterz@infradead.org, rostedt@goodmis.org, senozhatsky@chromium.org, tfiga@chromium.org, will@kernel.org, stable@vger.kernel.org Subject: Re: [PATCH v2 1/1] hung_task: fix warnings caused by unaligned lock pointers In-Reply-To: <875xdqsssz.fsf@igel.home> Message-ID: References: <20250909145243.17119-1-lance.yang@linux.dev> <99410857-0e72-23e4-c60f-dea96427b85a@linux-m68k.org> <875xdqsssz.fsf@igel.home> Precedence: bulk X-Mailing-List: linux-m68k@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii On Wed, 10 Sep 2025, Andreas Schwab wrote: > On Sep 10 2025, Finn Thain wrote: > > > Linux is probably the only non-trivial program that could be feasibly > > rebuilt with -malign-int without ill effect (i.e. without breaking > > userland) > > No, you can't. It would change the layout of basic user-level > structures, breaking the syscall ABI. > So you'd have to patch the uapi headers at the same time. I think that's "feasible", no?