add 18th iteration of classifier

1 files changed, 90 insertions, 0 deletions

diff --git a/results/classifier/118/none/2773 b/results/classifier/118/none/2773
new file mode 100644
index 00000000..e5125e17
--- /dev/null
+++ b/results/classifier/118/none/2773
@@ -0,0 +1,90 @@
+virtual: 0.781
+graphic: 0.779
+mistranslation: 0.744
+user-level: 0.736
+register: 0.716
+performance: 0.713
+peripherals: 0.703
+permissions: 0.696
+device: 0.695
+hypervisor: 0.689
+KVM: 0.681
+debug: 0.677
+vnc: 0.672
+ppc: 0.643
+TCG: 0.640
+i386: 0.636
+x86: 0.627
+arm: 0.603
+risc-v: 0.597
+semantic: 0.589
+VMM: 0.589
+socket: 0.585
+architecture: 0.570
+assembly: 0.568
+boot: 0.554
+PID: 0.541
+files: 0.528
+kernel: 0.513
+network: 0.506
+
+qemu-system-sparc64 sometimes generates endless loops
+Description of problem:
+Sometimes emulation "stops" in a busy loop hogging 1 cpu completely.
+gdb says:
+
+```
+0x00007d5805460ac5 in code_gen_buffer ()
+(gdb) info thread
+  Id   Target Id                     Frame 
+* 1    LWP 9166 of process 12669 ""  0x00007d5805460ac5 in code_gen_buffer ()
+  2    LWP 19293 of process 12669 "" 0x00007d584680803a in ____sigtimedwait50
+    () from /usr/lib/libc.so.12
+  3    LWP 20202 of process 12669 "" 0x00007d58468249ba in ___lwp_park60 ()
+   from /usr/lib/libc.so.12
+  4    LWP 12669 of process 12669 "" 0x00007d58467b72ca in _sys___pollts50 ()
+   from /usr/lib/libc.so.12
+(gdb) up
+#1  0x00000000007b3a0f in cpu_tb_exec (cpu=cpu@entry=0x7d58041ac680, 
+    itb=<optimized out>, tb_exit=tb_exit@entry=0x7d58037ffde8)
+    at ../accel/tcg/cpu-exec.c:458
+458	    ret = tcg_qemu_tb_exec(cpu_env(cpu), tb_ptr);
+
+(gdb) down
+#0  0x00007d5805460ac5 in code_gen_buffer ()
+(gdb) x/16i $pc
+=> 0x7d5805460ac5 <code_gen_buffer+19401368>:	mov    %r15,0x68(%rbp)
+   0x7d5805460ac9 <code_gen_buffer+19401372>:	xor    %r12,%r14
+   0x7d5805460acc <code_gen_buffer+19401375>:	mov    %r14,0x80(%rbp)
+   0x7d5805460ad3 <code_gen_buffer+19401382>:	mov    %r12,%rbx
+   0x7d5805460ad6 <code_gen_buffer+19401385>:	mov    %rbx,0x70(%rbp)
+   0x7d5805460ada <code_gen_buffer+19401389>:	mov    %r12,0x78(%rbp)
+   0x7d5805460ade <code_gen_buffer+19401393>:	mov    %r14,%r12
+   0x7d5805460ae1 <code_gen_buffer+19401396>:	shr    $0x20,%r12
+   0x7d5805460ae5 <code_gen_buffer+19401400>:	and    $0x1,%r12d
+   0x7d5805460ae9 <code_gen_buffer+19401404>:	dec    %r12
+   0x7d5805460aec <code_gen_buffer+19401407>:	and    %rbx,%r12
+   0x7d5805460aef <code_gen_buffer+19401410>:	mov    %r12d,%ebx
+   0x7d5805460af2 <code_gen_buffer+19401413>:	movb   $0x1,-0x4(%rbp)
+   0x7d5805460af6 <code_gen_buffer+19401417>:	cmp    %r13,%rbx
+   0x7d5805460af9 <code_gen_buffer+19401420>:	
+    je     0x7d5805460b20 <code_gen_buffer+19401459>
+   0x7d5805460aff <code_gen_buffer+19401426>:	
+    jmp    0x7d5805460b04 <code_gen_buffer+19401431>
+(gdb) list
+453	    if (qemu_loglevel_mask(CPU_LOG_TB_CPU | CPU_LOG_EXEC)) {
+454	        log_cpu_exec(log_pc(cpu, itb), cpu, itb);
+455	    }
+456	
+457	    qemu_thread_jit_execute();
+458	    ret = tcg_qemu_tb_exec(cpu_env(cpu), tb_ptr);
+459	    cpu->neg.can_do_io = true;
+460	    qemu_plugin_disable_mem_helpers(cpu);
+461	    /*
+462	     * TODO: Delay swapping back to the read-write region of the TB
+```
+Steps to reproduce:
+Unfortunately I have not been able to find a way to reliably reproduce this.
+Happens "often" to me, but not always.
+
+If you have any idea (like: what traces to enable) how to debug this I'll try to gather more information