[Oisf-users] Suricata runs out of memory on startup
Peter Manev
petermanev at gmail.com
Fri Jul 29 08:05:16 UTC 2011
On Thu, Jul 28, 2011 at 8:59 PM, Gene Albin <gene.albin at gmail.com> wrote:
> Gents,
> Thanks all for the suggestions. Specific responses below
>
> Rmkml - I made your recommended change to the suricata.yaml file (-
> profile: low) and there was no change. Watching top the spike appeard to
> peak at 3.7GB then Suricata exited.
>
> Dave - I have to admit that I'm not versed in C so I can't build the
> program you're describing. Do you know where I could find a pre-built one?
> I agree that upgrading to a 64-bit version would be the best choice, however
> I'm up against a very short timeline here and won't have time to upgrade the
> OS the reinstall Suricata and the rest of the tools that I need.
>
> Peter - Here are the results from both ulimit -aH and ulimit -a:
>
> [gene at suri2 ~]$ ulimit -aH
> core file size (blocks, -c) unlimited
> data seg size (kbytes, -d) unlimited
> scheduling priority (-e) 0
> file size (blocks, -f) unlimited
> pending signals (-i) 278528
> max locked memory (kbytes, -l) 32
> max memory size (kbytes, -m) unlimited
> open files (-n) 1024
> pipe size (512 bytes, -p) 8
> POSIX message queues (bytes, -q) 819200
> real-time priority (-r) 0
> stack size (kbytes, -s) unlimited
> cpu time (seconds, -t) unlimited
> max user processes (-u) 278528
> virtual memory (kbytes, -v) unlimited
> file locks (-x) unlimited
>
> [gene at suri2 ~]$ ulimit -a
> core file size (blocks, -c) 0
> data seg size (kbytes, -d) unlimited
> scheduling priority (-e) 0
> file size (blocks, -f) unlimited
> pending signals (-i) 278528
> max locked memory (kbytes, -l) 32
> max memory size (kbytes, -m) unlimited
> open files (-n) 1024
> pipe size (512 bytes, -p) 8
> POSIX message queues (bytes, -q) 819200
> real-time priority (-r) 0
> stack size (kbytes, -s) 10240
> cpu time (seconds, -t) unlimited
> max user processes (-u) 278528
> virtual memory (kbytes, -v) unlimited
> file locks (-x) unlimited
>
> I'm not exactly sure what I'm looking at here, but it looks like my max
> memory size is unlimited. Am I reading this correctly?
> I've also looked over your screen capture from your Ubuntu 32-bit VM and
> can't figure out why I'm crashing. What version of Suricata are you running
> on that 32-bit Ubuntu VM? 1.1b2?
>
> Gene
>
>
> On Thu, Jul 28, 2011 at 7:14 AM, Peter Manev <petermanev at gmail.com> wrote:
>
>> **
>> On 07/28/2011 02:54 PM, Dave Remien wrote:
>>
>> If you're up for it, about 15 lines of C code will give you a tiny program
>> to test how much memory you can get for a single process - basically just
>> malloc in a loop until you can't anymore. Sounds like your environment may
>> actually be limited to 2GB of process size; normal for Linux is 3GB (all in
>> the 32 bit world). Or you could lobby for a 64 bit copy
>> of Centos; that'll eliminate the cap (for this purpose).
>>
>> Cheers,
>>
>> Dave
>>
>> On Thu, Jul 28, 2011 at 1:10 AM, Gene Albin <gene.albin at gmail.com> wrote:
>>
>>> I just created a ticket with the details. To answer the questions here,
>>> I'm running the 1.1b2 build from the tarball. Not using git. The machine
>>> is running the 32 bit version of CentOS5.6, but we just applied the
>>> kernel-PAE packages today to allow it to utilize more than 4GB of ram. Is
>>> this what you are talking about, Dave? Lastly I included the suricata.yaml
>>> file as well as the output from free -m and my collectl memory statistics
>>> during the fatal run.
>>>
>>> Thanks for helping out with this. I thought that bumping the ram up to
>>> 16GB would fix it, but it appears not. Maybe I'll start slicing off some
>>> rules and see where the threshold lies...
>>>
>>> Gene
>>>
>>>
>>> On Wed, Jul 27, 2011 at 7:44 PM, Dave Remien <dave.remien at gmail.com>wrote:
>>>
>>>>
>>>>
>>>> On Wed, Jul 27, 2011 at 5:02 PM, Will Metcalf <
>>>> william.metcalf at gmail.com> wrote:
>>>>
>>>>> Can you create a redmine ticket and attach a scrubbed version of your
>>>>> suricata.yaml? Along with output of free -m prior to starting suri?
>>>>>
>>>>
>>>> Are you running a 32 bit kernel with a 2GB/2GB memory split, by any
>>>> chance??
>>>>
>>>> Cheers,
>>>>
>>>> Dave
>>>>
>>>>
>>>>>
>>>>> https://redmine.openinfosecfoundation.org/projects/suricata
>>>>>
>>>>> Regards,
>>>>>
>>>>> Will
>>>>> On Wed, Jul 27, 2011 at 4:35 PM, Gene Albin <gene.albin at gmail.com>
>>>>> wrote:
>>>>> > Ok, I'm probably doing something wrong here, but every time I try to
>>>>> load a
>>>>> > combined rule file with all of the VRT and ET rules enabled (~30K
>>>>> rules) it
>>>>> > fails following stage 3:
>>>>> >
>>>>> > [7069] 27/7/2011 -- 14:14:09 - (detect.c:631) <Info>
>>>>> (SigLoadSignatures) --
>>>>> > 102 rule files processed. 30183 rules succesfully loaded, 164 rules
>>>>> failed
>>>>> > [7069] 27/7/2011 -- 14:14:47 - (detect.c:2161) <Info>
>>>>> > (SigAddressPrepareStage1) -- 30701 signatures processed. 1800 are
>>>>> IP-only
>>>>> > rules, 20152 are inspecting packet payload, 11088 inspect application
>>>>> layer,
>>>>> > 0 are decoder event only
>>>>> > [7069] 27/7/2011 -- 14:14:47 - (detect.c:2164) <Info>
>>>>> > (SigAddressPrepareStage1) -- building signature grouping structure,
>>>>> stage 1:
>>>>> > adding signatures to signature source addresses... complete
>>>>> > [7069] 27/7/2011 -- 14:14:48 - (detect.c:2806) <Info>
>>>>> > (SigAddressPrepareStage2) -- building signature grouping structure,
>>>>> stage 2:
>>>>> > building source address list... complete
>>>>> > [7069] 27/7/2011 -- 14:16:40 - (detect.c:3363) <Info>
>>>>> > (SigAddressPrepareStage3) -- MPM memory 1801173581 (dynamic
>>>>> 1801173581, ctxs
>>>>> > 0, avg per ctx 0)
>>>>> > [7069] 27/7/2011 -- 14:16:40 - (detect.c:3365) <Info>
>>>>> > (SigAddressPrepareStage3) -- max sig id 30701, array size 3838
>>>>> > [7069] 27/7/2011 -- 14:16:40 - (detect.c:3376) <Info>
>>>>> > (SigAddressPrepareStage3) -- building signature grouping structure,
>>>>> stage 3:
>>>>> > building destination address lists... complete
>>>>> > [7069] 27/7/2011 -- 14:16:43 - (detect-engine-siggroup.c:1583)
>>>>> <Error>
>>>>> > (SigGroupHeadBuildHeadArray) -- [ERRCODE: SC_ERR_MEM_ALLOC(1)] -
>>>>> SCMalloc
>>>>> > failed: Cannot allocate memory, while trying to allocate 558852 bytes
>>>>> >
>>>>> > [7069] 27/7/2011 -- 14:16:43 - (detect-engine-siggroup.c:1583)
>>>>> <Error>
>>>>> > (SigGroupHeadBuildHeadArray) -- [ERRCODE: SC_ERR_FATAL(169)] - Out of
>>>>> > memory. The engine cannot be initialized. Exiting...
>>>>> >
>>>>> > I have done this while watching the memory useage in top (set to
>>>>> refresh
>>>>> > every .2 seconds). Initially when this happened I only had 4GB
>>>>> allocated to
>>>>> > the VM. Useage never gets beyond 2GB so that left almost 2GB
>>>>> available. I
>>>>> > decided to bump the VM up to 8GB but the problem didn't go away. It
>>>>> still
>>>>> > exits when the memory useage gets to around 2GB.
>>>>> >
>>>>> > Everything works fine when I load a reduced ruleset, i.e. just VRT or
>>>>> just
>>>>> > ET, but for my tests I want to load both. Before I go back to the VM
>>>>> > administrator and ask for 16 GB (and wait several days for the
>>>>> allocation) I
>>>>> > was wondering if there might be a config setting that is limiting the
>>>>> size
>>>>> > of memory allocated to the rules.
>>>>> >
>>>>> > Running 1.1b2 on CentOS 5.6 - 4core VMWare ESXi.
>>>>> >
>>>>> > Any suggestions are welcome.
>>>>> >
>>>>> > Gene
>>>>> >
>>>>> > --
>>>>> > Gene Albin
>>>>> > gene.albin at gmail.com
>>>>> >
>>>>> >
>>>>> > _______________________________________________
>>>>> > Oisf-users mailing list
>>>>> > Oisf-users at openinfosecfoundation.org
>>>>> > http://lists.openinfosecfoundation.org/mailman/listinfo/oisf-users
>>>>> >
>>>>> >
>>>>> _______________________________________________
>>>>> Oisf-users mailing list
>>>>> Oisf-users at openinfosecfoundation.org
>>>>> http://lists.openinfosecfoundation.org/mailman/listinfo/oisf-users
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> "Of course, someone who knows more about this will correct me if I'm
>>>> wrong, and someone who knows less will correct me if I'm right."
>>>> David Palmer (palmer at tybalt.caltech.edu)
>>>>
>>>>
>>>
>>>
>>> --
>>> Gene Albin
>>> gene.albin at gmail.com
>>>
>>>
>>
>>
>> --
>> "Of course, someone who knows more about this will correct me if I'm
>> wrong, and someone who knows less will correct me if I'm right."
>> David Palmer (palmer at tybalt.caltech.edu)
>>
>>
>> _______________________________________________
>> Oisf-users mailing listOisf-users at openinfosecfoundation.orghttp://lists.openinfosecfoundation.org/mailman/listinfo/oisf-users
>>
>> In that respect.... What is your output of
>> ulimit -aH
>> and
>> ulimit -a
>> for the user that you run Suricata with?
>>
>> --
>> Regards,
>> Peter Manev
>>
>>
>
>
> --
> Gene Albin
> gene.albin at gmail.com
>
>
Hi Gene,
I am using Suricata version 1.1beta2 (rev df3ca32).
What happens if you try to run Suricata as root?
Thanks
--
Peter Manev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openinfosecfoundation.org/pipermail/oisf-users/attachments/20110729/16921680/attachment-0002.html>
More information about the Oisf-users
mailing list