VirtualBox

Opened 10 years ago

Closed 8 years ago

#12161 closed defect (fixed)

EFI boot very slow with Serial Port enabled => fixed in SVN/next maintenance

Reported by: AxelFontaine Owned by:
Component: EFI Version: VirtualBox 4.2.18
Keywords: Cc:
Guest type: Linux Host type: Windows

Description

When booting a VM using EFI with a serial port mapped to a file, the VM spends more than 10 seconds in EFI before booting the kernel. During this time a lot of output is written to the serial port file.

With the serial port disabled, the same VM boots the kernel after less than 1 second.

Attachments (3)

efi-boot-without-serialport-vbox.log (64.1 KB ) - added by AxelFontaine 10 years ago.
efi-boot-with-serialport-com1.log (22.8 KB ) - added by AxelFontaine 10 years ago.
efi-boot-with-serialport-vbox.log (84.0 KB ) - added by AxelFontaine 10 years ago.

Download all attachments as: .zip

Change History (6)

by AxelFontaine, 10 years ago

by AxelFontaine, 10 years ago

by AxelFontaine, 10 years ago

comment:1 by AxelFontaine, 10 years ago

More testing with 4.3.6 completed.

This problem is Windows-only. It works fine on Mac & Linux.

It also has gotten worse with recent releases. The boot now takes even longer.

Last edited 10 years ago by AxelFontaine (previous) (diff)

comment:2 by aeichner, 8 years ago

Summary: EFI boot very slow with Serial Port enabledEFI boot very slow with Serial Port enabled => fixed in SVN/next maintenance

Sorry for the very late response but I just stumbled over your ticket. The issue is still true with the current VirtualBox release but will be fixed in the next maintenance release. Thanks for the report!

comment:3 by Frank Mehnert, 8 years ago

Resolution: fixed
Status: newclosed

Fix is part of 5.1.4.

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