1 files changed, 54 insertions, 0 deletions
diff --git a/results/classifier/118/none/1861605 b/results/classifier/118/none/1861605
new file mode 100644
index 000000000..14904f284
--- /dev/null
+++ b/results/classifier/118/none/1861605
@@ -0,0 +1,54 @@
+architecture: 0.753
+performance: 0.673
+device: 0.657
+TCG: 0.646
+mistranslation: 0.642
+kernel: 0.613
+network: 0.611
+socket: 0.595
+ppc: 0.586
+files: 0.578
+register: 0.517
+debug: 0.486
+vnc: 0.481
+peripherals: 0.469
+PID: 0.464
+semantic: 0.463
+assembly: 0.435
+user-level: 0.411
+graphic: 0.403
+risc-v: 0.391
+arm: 0.381
+VMM: 0.375
+x86: 0.365
+virtual: 0.351
+hypervisor: 0.344
+permissions: 0.338
+boot: 0.289
+i386: 0.283
+KVM: 0.192
+
+LL/SC broken for MIPS after 7dd547e5ab6b31e7a0cfc182d3ad131dd55a948f
+
+In that commit the env->llval value is loaded as an unsigned value (instead of sign-extended as before and therefore the CMPXCHG in gen_st_cond() in translate.c fails.
+
+I have committed a fix for this issue as https://github.com/CTSRD-CHERI/qemu/commit/a18d80c629989d002794f558968e1561edaf3dfd
+
+An alternative solution would be to change the cmpxchg line to perform a non-sign-extended compare, i.e. replace
+    tcg_gen_atomic_cmpxchg_tl(t0, addr, cpu_llval, val,
+                              eva ? MIPS_HFLAG_UM : ctx->mem_idx, tcg_mo); 
+with
+    tcg_gen_atomic_cmpxchg_tl(t0, addr, cpu_llval, val,
+                              eva ? MIPS_HFLAG_UM : ctx->mem_idx, tcg_mo & ~MO_SIGN); 
+
+
+I cannot send this patch to the QEMU mailing list as I am not able to setup git-send-email.
+Feel free to apply this commit or the alternative solution.
+
+The fix I linked is incorrect, the correct URL is https://github.com/CTSRD-CHERI/qemu/commit/a833317eeb0387dcfa7615a78e74f8b48990b8bc
+
+New patch: https://github.com/qemu/qemu/commit/6ff8dec97f1a105d0da96c67ee24c75e437df162
+
+Patch has been merged here:
+https://git.qemu.org/?p=qemu.git;a=commitdiff;h=ec860426dfbebe0c
+