diff options
Diffstat (limited to 'results/classifier/105/KVM/1243639')
| -rw-r--r-- | results/classifier/105/KVM/1243639 | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/results/classifier/105/KVM/1243639 b/results/classifier/105/KVM/1243639 new file mode 100644 index 00000000..79db5805 --- /dev/null +++ b/results/classifier/105/KVM/1243639 @@ -0,0 +1,127 @@ +KVM: 0.697 +mistranslation: 0.641 +vnc: 0.623 +other: 0.609 +device: 0.582 +instruction: 0.550 +graphic: 0.530 +semantic: 0.507 +boot: 0.483 +assembly: 0.452 +network: 0.442 +socket: 0.427 + +qemu-1.5.3 segment fault with -vga qxl + +execute " qemu-system-x86_64 -enable-kvm -machine accel=kvm:tcg -m 1G -drive file=/dev/sda --full-screen -spice addr=127.0.0.1,port=5900,disable-ticketing -vga qxl " on shell will get segment fault after a few seconds if I don't connect to it with spicec client immediately. + +IF excute "spicec -h 127.0.0.1 -p 5900 " immediately !!!! after the qemu-system-x86_64 execution, then no segment fault happens and it runs well. + +===================== + +GDB output: + +root@kali-john:~# gdb /usr/local/bin/qemu-system-x86_64 +GNU gdb (GDB) 7.4.1-debian +(gdb) run -enable-kvm -machine accel=kvm:tcg -m 1G -drive file=/dev/sda --full-screen -spice addr=127.0.0.1,port=5900,disable-ticketing -vga qxl + +[Thread debugging using libthread_db enabled] +Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". +[New Thread 0x7ffff3737700 (LWP 14797)] +[New Thread 0x7ffff2d54700 (LWP 14798)] +[New Thread 0x7ffff0fff700 (LWP 14799)] + +Program received signal SIGSEGV, Segmentation fault. +0x00007ffff683ad70 in pixman_image_get_data () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 +(gdb) bt +#0 0x00007ffff683ad70 in pixman_image_get_data () from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 +#1 0x000055555581060a in surface_data (s=0x5555566183a0) at /zh-download/QEMU/qemu-1.5.3/include/ui/console.h:235 +#2 0x0000555555818616 in vga_draw_graphic (s=0x55555662c778, full_update=1) at /zh-download/QEMU/qemu-1.5.3/hw/display/vga.c:1788 +#3 0x0000555555818c6a in vga_update_display (opaque=0x55555662c778) at /zh-download/QEMU/qemu-1.5.3/hw/display/vga.c:1917 +#4 0x000055555580eb15 in qxl_hw_update (opaque=0x55555662bd70) at /zh-download/QEMU/qemu-1.5.3/hw/display/qxl.c:1766 +#5 0x00005555557bd6bc in graphic_hw_update (con=0x555556618d00) at ui/console.c:254 +#6 0x00005555557c8426 in qemu_spice_display_refresh (ssd=0x55555662c418) at ui/spice-display.c:417 +#7 0x000055555580eff0 in display_refresh (dcl=0x55555662c420) at /zh-download/QEMU/qemu-1.5.3/hw/display/qxl.c:1886 +#8 0x00005555557c0cb1 in dpy_refresh (s=0x555556618370) at ui/console.c:1436 +#9 0x00005555557bd3af in gui_update (opaque=0x555556618370) at ui/console.c:192 +#10 0x0000555555797f20 in qemu_run_timers (clock=0x5555565b5a30) at qemu-timer.c:394 +#11 0x0000555555798183 in qemu_run_all_timers () at qemu-timer.c:453 +#12 0x0000555555760bb7 in main_loop_wait (nonblocking=0) at main-loop.c:470 +#13 0x00005555557cd19c in main_loop () at vl.c:2029 +#14 0x00005555557d43f2 in main (argc=13, argv=0x7fffffffe2b8, envp=0x7fffffffe328) at vl.c:4419 +(gdb) + + +====================== + +http://www.spice-space.org/download/releases/spice-0.12.4.tar.bz2 +http://www.spice-space.org/download/releases/spice-protocol-0.12.6.tar.bz2 +spice compiling + ./configure --enable-smartcard=no && make + +qemu-1.5.3 +compiling + ./configure \ +--disable-strip --enable-debug \ +--target-list=x86_64-softmmu,x86_64-linux-user \ +--disable-sdl --audio-drv-list=alsa --disable-vnc --disable-xen --disable-libiscsi \ + --disable-seccomp --disable-glusterfs --disable-libssh2 --disable-smartcard-nss \ + --disable-usb-redir --disable-brlapi --disable-curl --disable-bsd-user \ + \ +--enable-kvm --enable-spice --enable-system --enable-guest-agent --enable-vhost-net + + +root@kali-john:~# qemu-system-x86_64 -version +QEMU emulator version 1.5.3, Copyright (c) 2003-2008 Fabrice Bellard + +/usr/local/bin/qemu-system-x86_64 -enable-kvm -machine accel=kvm:tcg -m 1G -drive file=/dev/sda -vga qxl + +will give same error + +a funny thing: + +if I change the "-drive file=/dev/sda" to "-drive file=/dev/sdb" , it will not run into "segment fault". + +The different between sda & sdb is as following: + linux is installed on /dev/sda and /dev/sdb is another physical hard driver. + +================================================================= + +When change /dev/sda to /dev/sdb , it works well as following: + +(gdb) run -enable-kvm -machine accel=kvm:tcg -m 1G -drive file=/dev/sdb --full-screen -spice addr=127.0.0.1,port=5900,disable-ticketing -vga qxl +The program being debugged has been started already. +Start it from the beginning? (y or n) y + +Starting program: /usr/local/bin/qemu-system-x86_64 -enable-kvm -machine accel=kvm:tcg -m 1G -drive file=/dev/sdb --full-screen -spice addr=127.0.0.1,port=5900,disable-ticketing -vga qxl +warning: Could not load shared library symbols for linux-vdso.so.1. +Do you need "set solib-search-path" or "set sysroot"? +[Thread debugging using libthread_db enabled] +Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". +[New Thread 0x7ffff3737700 (LWP 15056)] +[New Thread 0x7ffff2d54700 (LWP 15057)] +[New Thread 0x7ffff0fff700 (LWP 15058)] +[Thread 0x7ffff3737700 (LWP 15056) exited] + +--- No segment fault error any more !! + +It will run into segment fault with /dev/sda but without -vga qxl + + +The qemu & the Host linux OS is iinstalled on /dev/sda + +sorry to mistake + +======== + +The truth is that + +t will NOT run into segment fault with /dev/sda but without -vga qxl + +The qemu & the Host linux OS is iinstalled on /dev/sda + + +Triaging old bug tickets ... QEMU 1.5 is quite old already - can you still reproduce the crash with the latest version of QEMU? + +[Expired for QEMU because there has been no activity for 60 days.] + |