Custom Query (16363 matches)
Results (1444 - 1446 of 16363)
| Ticket | Resolution | Summary | Owner | Reporter |
|---|---|---|---|---|
| #14047 | duplicate | chromium browser version 41.x -> duplicate of #13984 | ||
| Description |
I'm using virtual box 4.3.26. I have a vm with xubuntu 14.04.2 LTS. I have installed chromium: until version 40.x it works fine. If I update to newer version (exactly 41.0.2272.76 ubuntu 14.04 64bit), chromium stop to work properly. For example, if i try to change order of tabs it doesn't works. If I open developer tools (with ctrl+shift+i) I can't resize area. Before upgrading to version 41.x of chromium everything works properly. I also had the same problems with the version 4.3.12 of virtualbox. |
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| #11154 | duplicate | Bad VM to Host Network Performance with Intel NIC or virtio | ||
| Description |
I'm running VirtualBox 4.2 on a Ubuntu 12.04 LTS 64bit. The machine is a Xeon E1230 Quadcore with 32G ECC RAM. The VM, running Ubuntu 12.04 LTS 64bit, is connected via a Host Adapter. When running a ping from the Host to the VM, everything seems fine and I get an average latency of around 0.2ms. But in the other direction, depending on the configured VM NIC, I get very high ping results. Strangely enough, the problem only exists, when configuring more than one virtual CPU. Here are my measurements: Average Ping:
mdev: VCPUs PCnet-PCI II PCnet-FAST III Intel PRO/1000 MT Desktop Intel PRO/1000 T Server Intel PRO/1000 MT Server Paravirtualized Network 1 0.043 0.046 0.040 0.061 0.039 0.055 2 0.085 0.085 16.036 16.390 14.946 4.638 3 0.045 0.046 14.575 16.903 13.330 5.252 4 0.045 0.044 16.286 16.033 16.148 4.881 We see, as soon as I configure more than one VCPU, latency goes through the roof. vbox guest log and showvminfo output are attached. |
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| #17866 | invalid | Serial Port/UART cannot be used | ||
| Description |
I want to use the UART functionality to communicate with the VM (in this example Linux) from macOS.
As configuration I used The Linux guest says everything is fine: $ dmesg | grep tty [ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0 [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0 [ 0.004000] console [tty1] enabled [ 0.004000] console [ttyS0] enabled [ 1.535605] 00:02: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 1.721594] 00:03: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A
The file $ screen /tmp/serial_port2 115200 [screen is terminating] $ cat serial_port2 $ If I run the command as root, screen starts and shows the message Cannot exec 'serial_port2': No such file or directory
If I instead use I also created another VM with uartmode=client, but they also cannot communicate with each other. Is this function not working, or am I doing something wrong? |
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