Opened 14 years ago
Closed 8 years ago
#7522 closed defect (obsolete)
CPU Hotplug / Hot-unplug is unstable
| Reported by: | Technologov | Owned by: | |
|---|---|---|---|
| Component: | guest smp | Version: | VirtualBox 3.2.8 |
| Keywords: | Cc: | ||
| Guest type: | Linux | Host type: | other |
Description (last modified by )
Host: Windows XP, Core 2 Q6600, VBox 3.2.8.
Guest: openSUSE 11.3 64-bit (and other Linuxes)
I did:
VBoxManage modifyvm <vmname> --cpuhotplug on VBoxManage modifyvm <vmname> --cpus 2
after VM booted...
Several time re-plugged CPU:
VBoxManage controlvm <vmname> plugcpu 1 VBoxManage controlvm <vmname> unplugcpu 1
From inside guest: (openSUSE 11.3 64-bit)
linux-0gkn:~ # dmesg | tail
[ 870.449212] microcode: CPU0 update to revision 0xb6 failed
[ 870.488455] microcode: CPU1 update to revision 0xb6 failed
[ 870.515200] microcode: CPU0 update to revision 0xb6 failed
[ 870.537351] microcode: CPU1 update to revision 0xb6 failed
[ 870.557087] microcode: CPU0 update to revision 0xb6 failed
[ 870.584368] microcode: CPU1 update to revision 0xb6 failed
[ 873.845725] CPU 1 is now offline
[ 873.845725] SMP alternatives: switching to UP code
[ 884.070333] VBoxService[1412]: segfault at 2800568e70
ip 0000000000409235 sp 00007f644d05cb80 error 4
in VBoxService[400000+69000]
[ 884.071618] ACPI: Device don't exist, dropping EJECT
Similar, but different problems were seen on many other guest OSes: RHEL6 (BETA1), Fedora12, openSUSE 11.0/11.1/11.2 (32+64bit), ...
For now, only under Fedora 13 this feature magically worked. VBox log attached.
--
-"Technologov", 28.9.2010
Attachments (2)
Change History (7)
by , 14 years ago
| Attachment: | openSUSE-11.3 64-bit-2010-09-28-02-24-10.log added |
|---|
comment:1 by , 14 years ago
| Description: | modified (diff) |
|---|
comment:2 by , 14 years ago
Can't reproduce with a OpenSuse 11.3 amd64 guest so far. Inserted/Ejected the CPU several times but everything works.
comment:4 by , 14 years ago
Good news: CPU Hotplug/hot-unplug works fine in RHEL 6.0 x64 Final release. (feature is disabled in RHEL 6 32-bit). VBox 3.2.8.
dmesg of RHEL 6 32-bit guest returns:
ACPI: CPU Hot Add is currently disabled for x86 32-bit.
It is still worth to look at the openSUSE troubles through.
-"Technologov"
comment:5 by , 8 years ago
| Description: | modified (diff) |
|---|---|
| Resolution: | → obsolete |
| Status: | new → closed |
Please reopen if still relevant with a recent VirtualBox release.
VBox Log