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

Chris Hofstaedtler <[email protected]> Wed, 4 Mar 2026 14:34:28 +0100
Newsgroups org.kernel.vger.util-linux
Message-ID <[email protected]>
* Karel Zak <[email protected]> [260303 11:09]:
>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.
>
>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

Thanks, I've pulled this into our build and can confirm it fixes the 
issue on loong64.

Best,
Chris