Home » Mailing lists » Users » Exim 4 crashes kernel on Debian Etch 64bit
| Exim 4 crashes kernel on Debian Etch 64bit [message #14513] |
Fri, 29 June 2007 22:31  |
jarcher
Messages: 91
Registered: August 2006
Location: Smithfield, Rhode Island
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Member |
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Hi All...
I'm running OpenVZ on a Debian Etch 64bit machine, with this prebuilt
kernel:
actual:~# uname -a
Linux actual.xxxxxxxx.com 2.6.18-openvz-12-1etch1-amd64 #1 SMP Fri May 4
23:37:24 MSD 2007 x86_64 GNU/Linux
One of the VPSs is dedicated as a mail server, which is running Exim4,
Spamd, clamd, freshclam and sshd. Every few weeks, for no apparent reason,
the VPS exceeds its kmemsize and Exim will behave strangely. What's
disturbing, though, is that restarting the VPS does not solve the problem
and, in fact, often causes the entire machine to be unstable. The only way
out of this is a reboot.
I wish I had more information to offer, but I'm not sure what to look for.
Can anyone assist? I'm happy to run some tests if it will help.
Thanks very much.
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| Re: Exim 4 crashes kernel on Debian Etch 64bit [message #14562 is a reply to message #14513] |
Mon, 02 July 2007 13:46  |
Vasily Tarasov
Messages: 1345
Registered: January 2006
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Senior Member |
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This is a known issue and it is fixed already in fresh kernels. However
there are no fresh OpenVZ prebuild kernels in Debian archive at the
moment (Thorsten and Ola are working on it now), but you can use the
package from debian.systs.org.
HTH,
Vasily.
On Fri, 2007-06-29 at 18:31 -0400, Jim Archer wrote:
> Hi All...
>
> I'm running OpenVZ on a Debian Etch 64bit machine, with this prebuilt
> kernel:
>
> actual:~# uname -a
> Linux actual.xxxxxxxx.com 2.6.18-openvz-12-1etch1-amd64 #1 SMP Fri May 4
> 23:37:24 MSD 2007 x86_64 GNU/Linux
>
>
> One of the VPSs is dedicated as a mail server, which is running Exim4,
> Spamd, clamd, freshclam and sshd. Every few weeks, for no apparent reason,
> the VPS exceeds its kmemsize and Exim will behave strangely. What's
> disturbing, though, is that restarting the VPS does not solve the problem
> and, in fact, often causes the entire machine to be unstable. The only way
> out of this is a reboot.
>
> I wish I had more information to offer, but I'm not sure what to look for.
> Can anyone assist? I'm happy to run some tests if it will help.
>
> Thanks very much.
>
>
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| Re: Exim 4 crashes kernel on Debian Etch 64bit [message #14565 is a reply to message #14562] |
Mon, 02 July 2007 14:19 |
jarcher
Messages: 91
Registered: August 2006
Location: Smithfield, Rhode Island
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Member |
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Hi Vasily and thanks very much.
I didn't realize there was a kernel package on systs.org, I have been
manually downloading the packages and installing them with dpkg. Which
package do I want? I see on your site that there is a note dated June 18th
announcing an update of 028stab035, which is 2.6.18. Is that it?
--On Monday, July 02, 2007 5:46 PM +0400 Vasily Tarasov <vtaras@openvz.org>
wrote:
> This is a known issue and it is fixed already in fresh kernels. However
> there are no fresh OpenVZ prebuild kernels in Debian archive at the
> moment (Thorsten and Ola are working on it now), but you can use the
> package from debian.systs.org.
>
> HTH,
> Vasily.
>
> On Fri, 2007-06-29 at 18:31 -0400, Jim Archer wrote:
>> Hi All...
>>
>> I'm running OpenVZ on a Debian Etch 64bit machine, with this prebuilt
>> kernel:
>>
>> actual:~# uname -a
>> Linux actual.xxxxxxxx.com 2.6.18-openvz-12-1etch1-amd64 #1 SMP Fri May 4
>> 23:37:24 MSD 2007 x86_64 GNU/Linux
>>
>>
>> One of the VPSs is dedicated as a mail server, which is running Exim4,
>> Spamd, clamd, freshclam and sshd. Every few weeks, for no apparent
>> reason, the VPS exceeds its kmemsize and Exim will behave strangely.
>> What's disturbing, though, is that restarting the VPS does not solve
>> the problem and, in fact, often causes the entire machine to be
>> unstable. The only way out of this is a reboot.
>>
>> I wish I had more information to offer, but I'm not sure what to look
>> for. Can anyone assist? I'm happy to run some tests if it will help.
>>
>> Thanks very much.
>>
>>
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| Re: Exim 4 crashes kernel on Debian Etch 64bit [message #14566 is a reply to message #14565] |
Mon, 02 July 2007 14:23 |
Vasily Tarasov
Messages: 1345
Registered: January 2006
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Senior Member |
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Yes, Jim, 028stab035 kernel is the most recent available (prebuild)
OpenVZ kernel.
Vasily
On Mon, 2007-07-02 at 10:19 -0400, Jim Archer wrote:
> Hi Vasily and thanks very much.
>
> I didn't realize there was a kernel package on systs.org, I have been
> manually downloading the packages and installing them with dpkg. Which
> package do I want? I see on your site that there is a note dated June 18th
> announcing an update of 028stab035, which is 2.6.18. Is that it?
>
>
> --On Monday, July 02, 2007 5:46 PM +0400 Vasily Tarasov <vtaras@openvz.org>
> wrote:
>
> > This is a known issue and it is fixed already in fresh kernels. However
> > there are no fresh OpenVZ prebuild kernels in Debian archive at the
> > moment (Thorsten and Ola are working on it now), but you can use the
> > package from debian.systs.org.
> >
> > HTH,
> > Vasily.
> >
> > On Fri, 2007-06-29 at 18:31 -0400, Jim Archer wrote:
> >> Hi All...
> >>
> >> I'm running OpenVZ on a Debian Etch 64bit machine, with this prebuilt
> >> kernel:
> >>
> >> actual:~# uname -a
> >> Linux actual.xxxxxxxx.com 2.6.18-openvz-12-1etch1-amd64 #1 SMP Fri May 4
> >> 23:37:24 MSD 2007 x86_64 GNU/Linux
> >>
> >>
> >> One of the VPSs is dedicated as a mail server, which is running Exim4,
> >> Spamd, clamd, freshclam and sshd. Every few weeks, for no apparent
> >> reason, the VPS exceeds its kmemsize and Exim will behave strangely.
> >> What's disturbing, though, is that restarting the VPS does not solve
> >> the problem and, in fact, often causes the entire machine to be
> >> unstable. The only way out of this is a reboot.
> >>
> >> I wish I had more information to offer, but I'm not sure what to look
> >> for. Can anyone assist? I'm happy to run some tests if it will help.
> >>
> >> Thanks very much.
> >>
> >>
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| Re: iSCSI kernel mod in precombiled kernel images (was: Re: Exim 4 crashes kernel on Debian Etch 64 [message #14720 is a reply to message #14616] |
Sun, 08 July 2007 05:53 |
jarcher
Messages: 91
Registered: August 2006
Location: Smithfield, Rhode Island
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Member |
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--On Tuesday, July 03, 2007 3:08 PM +0200 Thorsten Schifferdecker
<tsd@debian.systs.org> wrote:
> Can you please post with kernel modules are needed for your iSCSI
> (deamon) ?
Hello Thorsten
I think the information you need is here:
<http://www.open-iscsi.org/docs/README>
In a nutshell:
The kernel portion of Open-iSCSI is a from-scratch code
licensed under GPL. The kernel part implements iSCSI data path
(that is, iSCSI Read and iSCSI Write), and consists of three
loadable modules: scsi_transport_iscsi.ko, libiscsi.ko and iscsi_tcp.ko.
Also:
As of today, the Open-iSCSI Initiator requires a host running the
Linux operating system with kernel version 2.6.16, or later. See
http://www.open-iscsi.org/cgi-bin/wiki.pl/Supported_Kernels
for a more information about which kernels Open-iSCSI supports.
You need to enable "Cryptographic API" under "Cryptographic options" in the
kernel config. And you must enable "CRC32c CRC algorithm" even if
you do not use header or data digests. They are the kernel options,
CONFIG_CRYPTO and CONFIG_CRYPTO_CRC32C, respectively.
Does this help? tsd@debian.systs.org
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