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Re: [PATCH for-4.22(?) 0/2] tools: Use the system liblz4 package
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Wed, 3 Jun 2026 10:21:29 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 03 Jun 2026 09:21:45 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 03/06/2026 10:16 am, Jan Beulich wrote:
> On 03.06.2026 10:53, Andrew Cooper wrote:
>> Switch to using the system liblz4.
>>
>> This brings libxenguest's lz4 decompression in line all the others, rather
>> than using the unsafe decompressor from Xen (itself a port of Linux's unsafe
>> decompressor).
> As stated in 84f04d8f0dbf ("libxc: add LZ4 decompression support"), there was
> no shared library available at the time (and on the SLES versions I worked
> with). Later a shared library appeared, but the -devel package still wasn't
> there. On my main dev system (intentionally a relatively old SLES version) I
> therefore wouldn't be able to build/test LZ4 anymore if we went this route.
> (FTAOD this isn't an outright objection, as the goal of the series is
> certainly good. It is mainly a data point to consider.)
That was 13 years ago. Are you saying that there's still an in-support
version of SLES which doesn't have liblz4 ?
~Andrew
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