Re: [PATCH bpf 0/2] bpf: fork state when comparing sign crossing ranges with zero

[Shung-Hsi Yu <shung-hsi.yu@suse.com>]

On Fri, May 29, 2026 at 07:53:08PM -0400, Emil Tsalapatis wrote:
> On Fri May 29, 2026 at 7:02 PM EDT, Ihor Solodrai wrote:
> > On 5/29/26 3:44 PM, Eduard Zingerman wrote:
> >> On Fri, 2026-05-29 at 01:13 -0700, Eduard Zingerman wrote:
[...]
> > Hi everyone,
> >
> > Apparently libarena_asan tests are currently skipped on BPF CI,
> > because they require clang 22 [1], which is not yet enabled there.
> >
> > I'll work on adding clang 22 to CI, but in the meanwhile please make
> > sure to test libarena locally with clang 22 if your changes are relevant.
> >
> > [1] https://lore.kernel.org/bpf/20260426190338.4615-6-emil@etsalapatis.com/
> 
> We actually need Clang HEAD since that's the release with address
> space-specific support, is it possible to add it to the CI instead of
> 22? Alternatively we would have to wait for the Clang 23 RC in July.

Theorecially possible, the LLVM infrastructre at apt.llvm.org does
provide LLVM 23 snapshots (e.g. [1]), the problem awhile back was that
the infrasture had issues[2,3] so can't be used to install anything
newer than 21.

Just check again, and [2] seem to have been resolved[4]. While the
problem with installation script[3] thats left could probably be worked
around by adding the apt repositories directly.

1: https://apt.llvm.org/unstable/pool/main/l/llvm-toolchain-snapshot/
2: https://github.com/libbpf/ci/commit/af3742c19566425bf8fa3bd8425ea65917c55401
3: https://github.com/llvm/llvm-project/issues/180163
4: https://github.com/llvm/llvm-project/issues/179148#issuecomment-3963668474