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Ticket Resolution Summary Owner Reporter
#2843 fixed No VB 2.1 on macosx MartijnSanderse
Description

Hi,

After installing VB 2.1 on Mac OSX 10.4 I can't start the VB program, it gives an error message that it can't read some xml file, and therefore cannot create a COM object.

thanks, Martijn

#2844 fixed File corruption during guest-side direct downloads into shared folders => Fixed in SVN VBoxBugReporter
Description

Setup:

Host:

  • Ubuntu 8.10 (32-bit) with latest updates up to 20 Dec, 2008
  • VirtualBox 2.1.0 (virtualbox-2.1_2.1.0-41146_Ubuntu_intrepid_i386.deb)
  • Firefox 3.0.5
  • ext3 filesystem

Guest:

  • Ubuntu 8.10 (32-bit) with latest updates up to 20 Dec, 2008
  • VirtualBox 2.1.0 guest additions installed (virtualbox-2.1_2.1.0-41146_Ubuntu_intrepid_i386.deb)
  • Firefox 3.0.5
  • ext3 filesystem

Plus a permanent shared folder between host and guest. The corresponding entry in fstab is:

SharedDir /home/test/Shared vboxsf rw,uid=test,gid=test 0 0

Symptoms:

  1. When downloading a file (e.g. virtualbox-2.1_2.1.0-41146_Ubuntu_intrepid_i386.deb) from the web via Firefox 3.0.5 into the shared folder the file gets corrupted. Random amount of the file is missing. E.g. in the case of the above deb file instead of 34.3 MB the output filesize ends up being randomly in the 20-34 MB range although FF3's download manager clearly indicates that it has downloaded 34.4 MB. It seems that the beginning of the downloaded file is missing.
  1. Downloading the same file into a NON-SHARED directory on the guest via FF3 works. No corruption occurs.
  1. Downloading the same file into the SHARED directory on the host via FF3 works. No corruption occurs.
  1. Downloading the same file on the guest via wget into the SHARED directory works. No corruption occurs.
  1. Manually copying the file into the SHARED directory on the guest works. No corruption occurs.

So the corruption occurs only when FF3 is used and only on the guest's side using the shared directory. FF3 works fine with the shared directory from the host's side.

Since the extent of the corruption (the reduction of the size of the output file) seems to be random, it sounds like a race condition (maybe some file locking issue) on the guest side of the shared folder.

Although it might sound like an FF3 issue at first sight, but FF3 works fine with the shared folder from the host's side. It only happens on the guest's side and only with the shared folder. It works fine when a non-shared folder is used on the guest's side. So it's more likely to be a VirtualBox shared folder issue (sounds like some race condition (e.g. file locking issue)) than a FF3 issue so I'm reporting this issue here and not on the FF3 website.

How to reproduce the problem:

Download a file into a shared folder from within the guest using the above setup and FF3

#2845 fixed The new NAT engine makes vbox freeze while downloading! Beno@…
Description

Every time i try to download a file, VirtualBox freezes after a few secounds... and the guest system doesn't respond anymore and i'm obliged to kill the process of vbox from windows...

i'm running vbox 2.1 under windows XP SP3, it's up to date the problem appeared after the update to vbox 2.1 i have the same issue on many linux guest system (i didn't try another ones), even with a mandriva installation that used to work fine under vbox 2.0.6

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