add 18th iteration of classifier

1 files changed, 93 insertions, 0 deletions

diff --git a/results/classifier/118/permissions/1892581 b/results/classifier/118/permissions/1892581
new file mode 100644
index 00000000..fece8e34
--- /dev/null
+++ b/results/classifier/118/permissions/1892581
@@ -0,0 +1,93 @@
+permissions: 0.960
+files: 0.950
+virtual: 0.947
+graphic: 0.902
+architecture: 0.894
+KVM: 0.888
+device: 0.886
+user-level: 0.877
+debug: 0.872
+kernel: 0.872
+assembly: 0.857
+semantic: 0.855
+ppc: 0.837
+mistranslation: 0.835
+performance: 0.833
+network: 0.832
+arm: 0.821
+x86: 0.820
+socket: 0.814
+PID: 0.800
+hypervisor: 0.791
+risc-v: 0.783
+peripherals: 0.775
+vnc: 0.766
+register: 0.755
+boot: 0.717
+VMM: 0.670
+i386: 0.669
+TCG: 0.645
+
+QEMU 5.1 no longer says anything about inaccessible devices
+
+Previously, with QEMU 5.0.0 running a VM with the following command:
+
+$ qemu-system-x86_64 -enable-kvm -hda arch-zoom.qcow2 -m 4G -device usb-ehci,id=ehci -device usb-host,bus=ehci.0,vendorid=0x04f2,productid=0xb449 -device intel-hda -device hda-duplex -vga virtio
+
+Would display something like the following:
+
+libusb: error [_get_usbfs_fd] libusb couldn't open USB device /dev/bus/usb/002/004: Permission denied
+libusb: error [_get_usbfs_fd] libusb requires write access to USB device nodes.
+libusb: error [_get_usbfs_fd] libusb couldn't open USB device /dev/bus/usb/002/004: Permission denied
+libusb: error [_get_usbfs_fd] libusb requires write access to USB device nodes.
+
+With insufficient permissions.
+
+QEMU 5.1.0 no longer displays anything.
+
+I did a git bisect and this is the result:
+
+[diego@thinkpad qemu]$ git bisect bad
+9f815e83e983d247a3cd67579d2d9c1765adc644 is the first bad commit
+commit 9f815e83e983d247a3cd67579d2d9c1765adc644
+Author: Gerd Hoffmann <email address hidden>
+Date:   Fri Jun 5 14:59:52 2020 +0200
+
+    usb: add hostdevice property to usb-host
+
+    The new property allows to specify usb host device name.  Uses standard
+    qemu_open(), so both file system path (/dev/bus/usb/$bus/$dev on linux)
+    and file descriptor passing can be used.
+
+    Requires libusb 1.0.23 or newer.  The hostdevice property is only
+    present in case qemu is compiled against a new enough library version,
+    so the presence of the property can be used for feature detection.
+
+    Signed-off-by: Gerd Hoffmann <email address hidden>
+    Message-Id: <email address hidden>
+
+ hw/usb/host-libusb.c | 75 ++++++++++++++++++++++++++++++++++++++++++----------
+ hw/usb/trace-events  |  1 +
+ 2 files changed, 62 insertions(+), 14 deletions(-)
+[diego@thinkpad qemu]$
+
+
+
+The previous commit is fine, it displays the USB errors:
+
+libusb: error [_get_usbfs_fd] libusb couldn't open USB device /dev/bus/usb/002/004: Permission denied
+libusb: error [_get_usbfs_fd] libusb requires write access to USB device nodes.
+libusb: error [_get_usbfs_fd] libusb couldn't open USB device /dev/bus/usb/002/004: Permission denied
+libusb: error [_get_usbfs_fd] libusb requires write access to USB device nodes.
+
+
+My system is Arch Linux.
+
+Not sure this is a bug.
+
+I was changing the /dev file permissions based on the output from above, that's why I decided to submit this bug report.
+
+Either way, the output from lsusb works too.
+
+I no longer need this (it's no longer an issue for me), feel free to reopen if this issue affects you.
+