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Ticket Resolution Summary Owner Reporter
#2256 duplicate Accessing host documents via vboxsvr share very slow pablo
Description

Hi,

This problem first reared its head after 1.5.6 Yes, I should have logged a bug back then but I had a work-around which wasn't too much pain. I think it's time to fix this issue. :)

Problem

When using the `vboxsvr' share to Open and Save files, especially, Office files, it's very slow compared to using a regular Windows share from the Guest to the Host.

Environment

Guest O/S

Windows X/P; Service Pack 3. Office 2007.

Host O/S

openSUSE 11.0 - 2.6.25.16-0.1-pae

Test Case

o Create a new PowerPoint file and place it on the Host - ensure it is also accessible to the Guest via the Network Neighborhood Browse function
o Create a permanent `vboxsvr' share pointing to where the file is located on the Host o Open the file using the `vboxsvr' share and note the time to perform this function. Add a single word and Save the file; note the time elapsed time to save the file. o Perform a Network Neighborhood Browse in the Guest and navigate to the same location and perform the same functions as above. Note the time difference (I hope you see what I'm seeing! :)

Additional Forensics

I downloaded and installed WinDump (similar to tcpdump) and noted when the vboxsvr' share is used, UDP packets are sent via port 137 (netbios). The first set of packets get through immediately but the subsequent packets timeout (so it seems). One can see in the attached file the problem manifesting after 16:27:37.392216'

I can collect more data if necessary. Just let me know.

#2257 invalid Cannot overwrite files in shared folders anbrs1
Description

Windows XP SP2 guest with Guest Additions 2.0.2r36486, Ubuntu 8.04 host.

If I try to copy a file to a shared folder and it already exists there, and I click "Yes" in the Confirm File Replace dialog, I get an error dialog titled "Error Copying File or Folder" that says "Cannot copy <filename here>: The parameter is incorrect." After that, the file to be overwritten is gone.

However, I am able to open, modify, and save files in the shared folder (usually) without errors.

In what may be a symptom of the same bug, if I use shell redirection to overwrite a file in a shared folder, the old file is not truncated properly. Assuming X: is the shared folder drive, at the command prompt:

x: echo asdf123456789 > trunc.txt more trunc.txt

--> asdf123456789

echo qwer > trunc.txt more trunc.txt

--> qwer

456789

The same thing happens when I overwrite a file using a Python script: if the new version is shorter, the tail of the old one remains.

#2258 fixed Solaris 10u5 guest hangs and consumes 100% CPU Shane Hjorth
Description

Running Virtualbox 2.0.2 on a Sun Ultra 24 running Ubuntu 8.04 (64bit) and I am finding stability to be a real problem when Intel VT-x is enabled which in turn allows me to run Solaris 10u5 x86 in 64-bit mode.

Running with VT-x disabled (same guest no running in 32-bit mode) is however stable.

After a period of time (30minutes+ depends on activity on the guest itself) when VT-x is enabled the Solaris 10u5 (64-bit) VirtualBox process will become non-responsive (hang) and CPU usage will shoot up to 100%.

The spinning thread is looping in the following call:

(gdb) where
#0  0x00007f727cbab3c7 in ioctl () from /lib/libc.so.6
#1  0x00007f727c414adf in ?? () from /usr/lib/virtualbox/VBoxRT.so
#2  0x00007f72744409ee in VMMR3HwAccRunGC ()
   from /usr/lib/virtualbox/VBoxVMM.so
#3  0x00007f727446ee6e in EMR3ExecuteVM () from /usr/lib/virtualbox/VBoxVMM.so
#4  0x00007f72744445d8 in ?? () from /usr/lib/virtualbox/VBoxVMM.so
#5  0x00007f727c3eee2c in ?? () from /usr/lib/virtualbox/VBoxRT.so
#6  0x00007f727c410c62 in ?? () from /usr/lib/virtualbox/VBoxRT.so
#7  0x00007f727d3523f7 in start_thread () from /lib/libpthread.so.0
#8  0x00007f727cbb2b2d in clone () from /lib/libc.so.6
#9  0x0000000000000000 in ?? ()

strace output

ioctl(33, 0x56c1, 0)                    = 0
ioctl(33, 0x56c1, 0)                    = 0
ioctl(33, 0x56c1, 0)                    = 0
ioctl(33, 0x56c1, 0)                    = 0
ioctl(33, 0x56c1, 0)                    = 0
ioctl(33, 0x56c1, 0)                    = 0

lsof output

COMMAND     PID  USER   FD   TYPE             DEVICE       SIZE     NODE NAME
VirtualBo 13331 shane   33u   CHR              10,63               24235 /dev/vboxdrv

I have tried a number of troubleshooting steps to solve this issue:

  • patched the Ultra 24 bios to the latest available.
  • Upgraded virtualbox from 2.0.0 -> 2.0.2
  • Ran the Solaris 10u5 system with and without VBox tools installed on the guest.
  • Installed a fresh copy of Solaris 10u5 (64bit).

Nothing has helped so far.

This issue appears to be triggered by load within the guest itself. For example I had to re-attempt the installation of Sun Communication Suite 5 three times before it would complete without the VM hanging half-way through the process. Installing the same product when the same OS is running in 32bit mode completes without a problem.

I currently have 3 Solaris 10u5 guests running.

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
13413 shane     20   0 1329m 1.1g  16m S    5 18.6  10:07.66 VirtualBox
13331 shane     20   0 1313m 1.1g  15m S   94 18.3  44:35.35 VirtualBox
13362 shane     20   0  775m 540m  15m S    4  9.1   8:24.34 VirtualBox

13331 => problem Solaris 10u5 64-bit instance with a small amount of application load 13413 => no-problem running Solaris 10u5 64-bit with no application load 13362 => no-problem running Solaris 10u5 32-bit with same level of application load as 13331

13331 Session Information (Runtime Attributes):

Screen Resolution 720x400
VT-x/AMD-V        Enabled
Nested Paging     Disabled
Guest Additions   Version 1.4

Guest OS Type     Solaris

Hard Disk Statistics
IDE Primary Master
DMA Transfers      79,145

PIO Transfers      2,873
Data Read          576,124,416 B
Data Written       1,436,581,888 B

CD/DVD-ROM Statistics
DMA Transfers
PIO Transfers      4,094
Data Read          7,942,144 B
Data Written       0 B

Network Adapter Statistics
Adapter 0
Data Transmitted  476,950 B
Data Received     66,507,622 B
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