Guest aborts after xsane fails to access scanner on USB

[Cale]

Host: Slackware 14.0 64 bit. (have seen error with Slackware 13.37 64 bit host as well) Guest is also running Slackware 14.0 64 bit. If I try to run xsane on the guest, sometimes it will work the first time. However, afterwards if I disconnect the USB and then reconnect the USB under the Devices menu and then try to start up xsane, it will give a message indicating it failed to connect to the scanner. (Failed to open device 'brother2:bus2;dev3':Invalid argument. After a minute or so, the guest will abort.

I do not see this error with a Slackware 13.37 64 bit guest. I also do not see this error if I run xsane on the Slackware 14.0 64 bit physical machine or the host machine either.

In logs included, xsane failed to connect the first time through.

I first saw this error with VirtualBox 4.2.0. I've upgraded to VirtualBox 4.2.4 and still see the same error.

[Cale]

log file

[Cale]

on the host, I'll get this message after the abort: Nov 9 20:44:48 activa kernel: EMT[4456]: segfault at b0 ip 00007f04d55c37b9 sp 00007f04ec2dca90 error 4 in VBoxDD.so[7f04d54c0000+23b000]

[Frank Mehnert]

Thank you for the core dump! It clearly shows the problem although we don't have an idea yet how to fix.

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.