Re: unaligned memory access with HPPA

Sam James <[email protected]> Tue, 13 Jan 2026 20:44:09 +0000
Newsgroups gmane.linux.debian.ports.hppa
Organization Gentoo
Message-ID <[email protected]>
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Christian Groessler <[email protected]> writes:

> Hi,
>
> I've noticed that the kernel covers up unaligned memory accesses, see
> this dmesg message (and the program doesn't crash):
>
> [26186.220638] unal(9569): unaligned access to 0x000110e9 at ip
> 0x00010543 (iir 0x0f40109c)
>
> Is there a way to disable the handling of unaligned accesses in kernel 6.x?
> I'd like to get a bus error (SIGBUS or other signal) so I can find the
> places in the code where unaligned accesses are done.

You can use prctl (https://sourceforge.net/projects/prctl/).

>
> regards,
> chris

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