On Mon, 14 Sep 2020 15:01:15 +0100 Will Deacon <will@xxxxxxxxxx> wrote: > Hi Ilias, > > On Mon, Sep 14, 2020 at 04:23:50PM +0300, Ilias Apalodimas wrote: > > On Mon, Sep 14, 2020 at 03:35:04PM +0300, Ilias Apalodimas wrote: > > > On Mon, Sep 14, 2020 at 01:20:43PM +0100, Will Deacon wrote: > > > > On Mon, Sep 14, 2020 at 11:36:21AM +0300, Ilias Apalodimas wrote: > > > > > Running the eBPF test_verifier leads to random errors looking like this: > > [...] > > > > > Any suggestion on any Fixes I should apply? The original code was 'correct' and > > broke only when bounded loops and their self-tests were introduced. > > Ouch, that's pretty bad as it means nobody is regression testing BPF on > arm64 with mainline. Damn. Yes, it unfortunately seems that upstream is lacking BPF regression testing for ARM64 :-( This bug surfaced when Red Hat QA tested our kernel backports, on different archs. -- Best regards, Jesper Dangaard Brouer MSc.CS, Principal Kernel Engineer at Red Hat LinkedIn: http://www.linkedin.com/in/brouer
