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Ticket Resolution Summary Owner Reporter
#13739 duplicate Illegal memory exceptions when saving state (Fedora21/Centos7 Guests, Windoes 7 Host)) tsujamin
Description

I have a pair of Centos7 x86_64 VM's and a Fedora21 x86_64 VM which always virtualbox when I save their state. All VM's have the latest guest additions installed. My pair of Centos6.6 VM's do not suffer this problem.

Virtualbox Version: 4.3.20 Host: Windows 7 x86_64 Fedora kernel: 3.17.4.301

Find attached the most recent log from the fedora instance. This one crashed with "Instruction at 0x0 referenced memory at 0x0 that couldn't be written" however the actual memory/instruction addresses do change

#1928 fixed file size errors on ext3 shared folder tsr
Description

My virtualbox_1.6.4-33808_Ubuntu_gutsy_i386.deb sometimes sets the size of files in a shared folder incorrectly. When it happens they appear much bigger (on the host as well as the guest) than they actually are. When i "look" at these files they seem to have the null character appended countless times, but they dont seem to actually occupy the additional diskspace.

The problem occurs with torrent downloads, so the data is written directly into the shared folder chunk by chunk as its being downloaded. It does not happen to all files. Host&Guest are Ubuntu 7.10. The shared folder is mounted like this in the fstab:

fls /media/files vboxsf rw,uid=user 0 0

I have just noticed that the logfile becomes quite big (~450mb for 2 days uptime). Maybe i should also mention that the hosts cpu is often maxed out.

These are the tailing lines of a log:

---

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7e036f8

remR3NotifyTrap: uTrap=ff error=0 next_eip=00000002 eip=00000000 cr2=b7eb4580

remR3NotifyTrap: uTrap=d error=7fa next_eip=00000000 eip=00000000 cr2=b7eb4580

remR3NotifyTrap: uTrap=ff error=0 next_eip=00000002 eip=00000000 cr2=b7eb4580

remR3NotifyTrap: uTrap=d error=7fa next_eip=00000000 eip=00000000 cr2=b7eb4580

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7e036f8

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7e036f8

remR3NotifyTrap: uTrap=ef error=0 next_eip=00000000 eip=c02f60c9 cr2=b7e036f8

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7e036f8

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7e036f8

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7de46f8

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7de46f8

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7de46f8

remR3NotifyTrap: uTrap=7 error=0 next_eip=08048e00 eip=08048e00 cr2=b7f7f451

remR3NotifyTrap: uTrap=e error=3 next_eip=c01feac2 eip=c01feac2 cr2=b7de46f8

---

I'm posting this bug report after having posted this on the forum earlier: http://forums.virtualbox.org/viewtopic.php?t=8534

#6818 obsolete Muting sound on virtualized pc disables soundcard in host pc tspoon765@gmail.com
Description

Host: Ubuntu 10.04 Guest: Win XP

In XP I clicked in the system tray to mute the sound.

Next time I started up the host system, no sound card is even detected.

Starting virtual box and un-muting in the guest system cured the problem.

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