add 18th iteration of classifier

1 files changed, 82 insertions, 0 deletions

diff --git a/results/classifier/118/none/1527322 b/results/classifier/118/none/1527322
new file mode 100644
index 000000000..7140a147d
--- /dev/null
+++ b/results/classifier/118/none/1527322
@@ -0,0 +1,82 @@
+mistranslation: 0.778
+risc-v: 0.732
+device: 0.681
+graphic: 0.679
+virtual: 0.654
+register: 0.646
+peripherals: 0.645
+network: 0.645
+hypervisor: 0.628
+user-level: 0.627
+architecture: 0.623
+performance: 0.610
+ppc: 0.604
+debug: 0.601
+x86: 0.599
+permissions: 0.585
+TCG: 0.575
+arm: 0.571
+socket: 0.570
+KVM: 0.562
+semantic: 0.560
+boot: 0.560
+i386: 0.550
+PID: 0.545
+kernel: 0.541
+VMM: 0.530
+assembly: 0.506
+vnc: 0.500
+files: 0.495
+
+segfault in thread-pool.c:246:5:
+
+Building qemu-2.5.0 with -fsanitize=undefined shows, e.g.:
+
+markus@x4 linux % qemu-system-x86_64 -s -enable-kvm -net nic,vlan=0,model=virtio -net user -fsdev local,security_model=none,id=root,path=/ -device virtio-9p-pci,id=root,fsdev
+=root,mount_tag=/dev/root -m 512 -smp 2 -kernel /usr/src/linux/arch/x86/boot/bzImage -nographic -append "init=/bin/zsh root=/dev/root console=ttyS0 kgdboc=ttyS0 rootflags=rw,
+trans=virtio rootfstype=9p ip=dhcp earlyprintk=ttyS0"
+/var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/exec.c:307:5: runtime error: variable length array bound evaluates to non-positive value 0
+/var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/hw/i386/kvm/apic.c:37:47: runtime error: left shift of 15 by 28 places cannot be represented in type 'int'
+/var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/include/qemu/rcu.h:85:21: runtime error: member access within null pointer of type 'struct rcu_reader_data'
+/var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/include/qemu/rcu.h:101:5: runtime error: member access within null pointer of type 'struct rcu_reader_data'
+/var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/include/qemu/rcu.h:102:8: runtime error: member access within null pointer of type 'struct rcu_reader_data'
+...
+ALSA device list:
+  No soundcards found.
+/var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/thread-pool.c:246:5: runtime error: member access within null pointer of type 'struct ThreadPool'
+[1]    9295 segmentation fault  qemu-system-x86_64 -s -enable-kvm -net nic,vlan=0,model=virtio -net user  
+
+As you can see it segfaults when build with upcoming gcc-6, that is more aggressive when it comes to undefined behavior.
+The compiler just assumes that "this" can never be NULL and optimizes accordingly.
+
+It also segfaults when build with gcc-4.9.4 or gcc-5.3.
+
+Program received signal SIGSEGV, Segmentation fault.
+thread_pool_submit_aio (pool=0x0, func=0x555555820bc0 <coroutine_enter_func>, arg=0x5555579db430, cb=<optimized out>, opaque=<optimized out>)
+    at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/thread-pool.c:246
+246         QLIST_INSERT_HEAD(&pool->head, req, all);
+(gdb) bt
+#0  thread_pool_submit_aio (pool=0x0, func=0x555555820bc0 <coroutine_enter_func>, arg=0x5555579db430, cb=<optimized out>, opaque=<optimized out>)
+    at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/thread-pool.c:246
+#1  0x00005555559451cd in aio_bh_call (bh=<optimized out>) at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/async.c:64
+#2  aio_bh_poll (ctx=ctx@entry=0x5555561c1da0) at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/async.c:92
+#3  0x00005555559524f0 in aio_dispatch (ctx=0x5555561c1da0) at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/aio-posix.c:305
+#4  0x0000555555944f4e in aio_ctx_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>)
+    at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/async.c:231
+#5  0x00007ffff726ce2e in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
+#6  0x0000555555950baa in glib_pollfds_poll () at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/main-loop.c:211
+#7  os_host_main_loop_wait (timeout=<optimized out>) at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/main-loop.c:256
+#8  main_loop_wait (nonblocking=<optimized out>) at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/main-loop.c:504
+#9  0x00005555556ddf46 in main_loop () at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/vl.c:1923
+#10 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at /var/tmp/portage/app-emulation/qemu-2.5.0/work/qemu-2.5.0/vl.c:4684
+(gdb) p pool
+$1 = (ThreadPool *) 0x0
+
+
+This issue was fixed with the following upstream commit:
+
+http://git.qemu.org/?p=qemu.git;a=commit;h=4b3a4f2d458ca5a7c6c16ac36a8d9ac22cc253d6
+
+Shipped in QEMU 2.5.1 and 2.6.
+
+