On Mon, 2019-09-23 at 17:59 -0700, Alistair Francis wrote: > On Mon, Sep 23, 2019 at 3:40 PM Khem Raj <raj.k...@gmail.com> wrote: > > Alistair, > > > > OE-core qemu upgrade to 4.1 has ended up with regressing musl/riscv > > port. I could pin point it to > > > > https://git.openembedded.org/openembedded-core/commit/?id=50a7dec95618080962e56fd347f505e691b7ad6f > > > > it works fine with 4.0, I havent looked further > > > > To reproduce > > > > build > > MACHINE=qemuriscv64 TCLIBC=musl bitbake core-image-minimal > > TCLIBC=musl runqemu nographic > > Thanks, I can reproduce this and am bisecting QEMU now.
This QEMU patch causes the failure. It reverts cleanly on master and that fixes the issue: RISC-V: Clear load reservations on context switch and SC This prevents a load reservation from being placed in one context/process, then being used in another, resulting in an SC succeeding incorrectly and breaking atomics. Signed-off-by: Joel Sing <j...@sing.id.au> Reviewed-by: Palmer Dabbelt <pal...@sifive.com> Reviewed-by: Richard Henderson <richard.hender...@linaro.org> Signed-off-by: Palmer Dabbelt <pal...@sifive.com> I'll investigate a full solution tomorrow, in the mean time do you want to just revert the patch? Alistair > > Alistair > > > Thanks > > -Khem > > -- > > _______________________________________________ > > Openembedded-core mailing list > > Openembedded-core@lists.openembedded.org > > http://lists.openembedded.org/mailman/listinfo/openembedded-core -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
