On Thu, Aug 14, 2025 at 2:35 AM Eduard Zingerman <eddy...@gmail.com> wrote: > > On Wed, 2025-08-13 at 23:29 +0800, KaFai Wan wrote: > > This test verifies socket filter attachment functionality on architectures > > supporting either BPF JIT compilation or the interpreter. > > > > It specifically validates the fallback to interpreter behavior when JIT > > fails, > > particularly targeting ARMv6 devices with the following configuration: > > # CONFIG_BPF_JIT_ALWAYS_ON is not set > > CONFIG_BPF_JIT_DEFAULT_ON=y > > > > Signed-off-by: KaFai Wan <kafai....@linux.dev> > > --- > > This test should not be landed as-is, first let's do an analysis for > why the program fails to jit compile on arm. > > I modified kernel to dump BPF program before jit attempt, but don't > see anything obviously wrong with it. The patch to get disassembly > and disassembly itself with resolved kallsyms are attached. > > Can someone with access to ARM vm/machine take a looks at this? > Puranjay, Xu, would you have some time?
Hi Eduard, Thanks for the email, I will look into it. Let me try to boot a kernel on ARMv6 qemu and reproduce this. Thanks, Puranjay
