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d3x73r
n00b
Joined: 16 Apr 2010
Posts: 55
Location: Bahia/Brazil
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 Posted: Wed Aug 10, 2011 3:17 pm Post subject: Conflict under Hardened kernel and VMWare Server |
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I'm trying to merge my server to Hardened sources.
The problem is that last time I tried to merge, my VMWare Server could not load Virtual Machines ans loops to restart the system indefinitely.
Does anyone know about any issue ralated to this? |
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Yuu
Apprentice
Joined: 23 Dec 2008
Posts: 223
Location: France
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| Posted: Wed Aug 10, 2011 3:21 pm Post subject: |
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Hi,
what version of the sys-kernel/hardened-sources are you using ? Do you use the predefined grsecurity level called "virtualization" ?
_________________
Main laptop : T8300 cpu | 200 GB hard drive | 2 GB of ram | 8600M GT | Gentoo x86_64
Server : Celeron 220 cpu | 250 GB hard drive | 2 GB of ram | SiS 662 VGA | Gentoo x86_64 |
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d3x73r
n00b
Joined: 16 Apr 2010
Posts: 55
Location: Bahia/Brazil
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| Posted: Fri Aug 12, 2011 1:15 am Post subject: |
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I did my tests with linux-2.6.34-hardened-r6 once.
I didn't realize that I should this grsecurity level. This is a kernel configuration?
| Yuu wrote: | Hi,
what version of the sys-kernel/hardened-sources are you using ? Do you use the predefined grsecurity level called "virtualization" ? |
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Yuu
Apprentice
Joined: 23 Dec 2008
Posts: 223
Location: France
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| Posted: Fri Aug 12, 2011 8:16 am Post subject: |
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Hi,
Yes, it's in the kernel configuration. And as far as I remember, it's on the hardened-sources since >= 2.6.37 :
| Code: | Security options --->
Grsecurity --->
[*] Grsecurity
Security Level (Hardened Gentoo [virtualization]) ---> |
It basically turns off KERNEXEC and UDEREF along with a few others; also, maybe you should check your logs (/var/log/messages & others) for errors before your system reboots.
_________________
Main laptop : T8300 cpu | 200 GB hard drive | 2 GB of ram | 8600M GT | Gentoo x86_64
Server : Celeron 220 cpu | 250 GB hard drive | 2 GB of ram | SiS 662 VGA | Gentoo x86_64 |
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anton_kg
Tux's lil' helper
Joined: 10 Feb 2007
Posts: 93
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| Posted: Wed Jan 11, 2012 6:51 am Post subject: |
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This is my biggest problem with hardened kernel so far. There is an open bug report, see the link bellow:
https://bugs.gentoo.org/show_bug.cgi?id=382793
and there is no known solution for that. Have you found any workarounds? |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 23121
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| Posted: Thu Jan 12, 2012 3:51 am Post subject: |
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| You could use a hypervisor that plays well with hardened, such as KVM. Additionally, KVM has some support for nested virtualization, which may enable you to perform the debugging suggested by PaX team. |
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Kernel & Hardware
