Le 04/11/2016 à 10:43, John Paul Adrian Glaubitz a écrit : > On 11/04/2016 10:23 AM, John Paul Adrian Glaubitz wrote: >> On 11/03/2016 05:21 PM, Laurent Vivier wrote: >>> It should,:the problem was reported by Adrian (cc:) while compiling ghc >>> in qemu-sh4, but I have just tested the functionality with the softmmu >>> version, not the atomicity. >>> >>> Adrian, could you test this patch? >> >> Will absolutely do that. Awesome to see progress here :). > > Ok, I couldn't wait. It doesn't help with the GHC issue, unfortunately: > > root@ikarus:~/ghc-7.8.4/utils/ghc-pwd# ghc Main.hs > [1 of 1] Compiling Main ( Main.hs, Main.o ) > qemu-sh4-static: /home/glaubitz/upstream/qemu/translate-all.c:175: tb_lock: > Assertion `!have_tb_lock' failed. > qemu-sh4-static: /home/glaubitz/upstream/qemu/translate-all.c:175: tb_lock: > Assertion `!have_tb_lock' failed. > Segmentation fault > root@ikarus:~/ghc-7.8.4/utils/ghc-pwd# > > I've also seen it lock up and strace showing it hanging in a futex lock.
I think it's more likely a linux-user bug than a target-sh4 bug. As you report in a mail to me in February, "do_futex()" must be protected against parallel execution for some futex commands. Thanks, Laurent
