Re: [ANNOUNCE] util-linux v2.42-rc1

On Tue, Mar 03, 2026 at 11:08:00AM +0100, Karel Zak wrote:
> On Mon, Mar 02, 2026 at 04:59:06PM +0100, Sumanth Korikkar wrote:
> > * When --sysroot is used, do not read /sys/firmware/memory
> >   (used on s390). This makes sure lsmem reads only the memory
> >   directories inside the given sysroot, so the directory list
> >   is correct.
> 
> Hi Sumanth,
> 
> Thanks for looking into this. I think your patch is a workaround
> though. It bypasses sysmemconfig and memmap_on_memory when --sysroot
> is used rather than fixing the root cause.
> 
> The real problem is that --sysroot prefix was not applied to all sysfs
> paths. The sysmemconfig handler was never prefixed, and print_summary()
> used raw fopen() to read memmap_on_memory, completely ignoring --sysroot.
> 
> I've pushed different solution fix to
> https://github.com/util-linux/util-linux/pull/4090 
> 
> This way all sysfs reads go through the prefix, and tests produce
> consistent results regardless of the host system.
> 
>   Karel
> 
> -- 
>  Karel Zak  <[email protected]>
>  http://karelzak.blogspot.com
>

Hi Karel,

Thanks for fixing it. I tested the pull request and it looks good to me.

Best Regards,
Sumanth