Re: [vserver] Patch for vserver + GR Security

From: Sandino Araico Sánchez <>
Date: Sat 14 May 2011 - 09:01:12 BST
Message-ID: <>

After the refcount fix (thanks Rik for your advice) I have the new
kernel running for more than 23 hours with no visible failure.

The vserver patch against a grsec-patched kernel:

The combined patch against vanilla:

On 12/05/11 06:33, Sandino Araico Sánchez wrote:
> On 12/05/11 05:34, Rik Bobbaers wrote:
>> this is the refcount overflow i was talking about.
> I have found your refcount patch.
> Most of the rejects happened because the hunk was already applied.
> The new patch is
> As Herbert asked, the patch is vserver against a grsec-patched kernel.
> I have to go to sleep. I will try the new patch tomorrow.
>> I'll try to spin a new kernel this evening...
>> (ps. what system calls are you talking about? i haven't done any 2.6.38
>> kernel yet, so it would be nice to know and not have to look ;)
> Merging parameters in function calls like 'var =
> func(vx_xxx(foo,grsec_yyy(bar)));'
> A couple of those; the rest of the rejects are cleaner.
> Not too complicated.
>> KR
>> Rik Bobbaers
>> --
>>> I checked all the rejects and applied them manually. I had to merge a
>>> couple of function calls manually either because both vserver and grsec
>>> patches modified the same line.
>>> The kernel compiles and boots without crashing but I have found some
>>> functionality missing like the old token bucket sched, having to remove
>>> the sched directory from /etc/vservers/myvserver/sched
>>> Running the cherokee webserver inside a vserver with ~40 requests per
>>> second makes the kernel crash but I haven't had the time to try to
>>> reproduce the crash. The same webserver running inside a simple chroot
>>> does not crash the kernel.
> --
> Sandino Araico Sánchez

Sandino Araico Sánchez
Received on Sat May 14 09:00:56 2011
[Next/Previous Months] [Main vserver Project Homepage] [Howto Subscribe/Unsubscribe] [Paul Sladen's vserver stuff]
Generated on Sat 14 May 2011 - 09:00:58 BST by hypermail 2.1.8