[cisco-voip] Mismatched CCM versions, side effects...

[Tim Smith]

CCM didnt even have the common decency to throw a blue screen for that
memory leak!

Particularly nasty...

Circuits and phones stayed registered to the affected CCM, and still played
happily amongst themselves..
CCM service itself was quite resilient even with no mem available...
It was just the SDL link to the other boxes that caused a problem!

Good news is it was quite a slow leak.. took about 6 months
Bad news if the restarts are only staggered by 1 day ;)

Cheers,

Tim



On 7/17/08, Ryan Ratliff <rratliff at cisco.com> wrote:
>
> No the blue screens would be the nonpaged pool memory leak you want to fix
> :)
>
> Just quirky call behavior for anything crossing nodes as CCM one one node
> may behave differently than CCM on another node due to missing bug fixes,
> etc.
>
>  -Ryan
>
>  On Jul 17, 2008, at 2:29 PM, Jonathan Charles wrote:
>
> When you say 'weird stuff'... do you mean blue screens?
>
>
> I just want to prepare myself for whatever calamity occurs...
>
>
>
>
>
>
> Jonathan
>
>
> On Thu, Jul 17, 2008 at 1:28 PM, Ryan Ratliff <rratliff at cisco.com> wrote:
>
> ES122 is newer than SR5b but as long as you end up on the same version you
> will be ok.  You can apply SR7 to all of them regardless of the current
> version (since all are already at some variant of 4.1.3) and as long as you
> remember wierd stuff can happen before they get there then you'll be ok.
>
>
> -Ryan
>
>
> On Jul 17, 2008, at 12:26 PM, Jonathan Charles wrote:
> I ask, cuz my original plan was to apply sr5b to the Subscriber, then
> sr7 to the pub, then sr7 to the sub.... I figured it would be safest
> to patch the sub to the same ver
>
>
>
>
> Jonathan
> On Thu, Jul 17, 2008 at 11:25 AM, Jonathan Charles <jonvoip at gmail.com>
> wrote:
>
>
> So, es122 is newer than sr5b....
>
>
>
>
> Jonathan
> On Thu, Jul 17, 2008 at 11:15 AM, Ryan Ratliff <rratliff at cisco.com> wrote:
>
>
> SR5b is based on ES106 with various fixes going up to ES115.
> The biggest fix between those two versions is  CSCsj37081 - CDP.sys
> causing
> nonpaged pool memory leak identified by Mdl tag.
> Unfortunately you need to be at SR7 to have the full fix for that.
> The general mismatched version warning I give is:
> Worst case, CCM crashes, repeatedly.
> Most likely case, calls fail between the nodes running mismatched versions.
> Best case, various wierd things happen you can't explain.
> In any case TAC won't touch the system.
> -Ryan
> On Jul 17, 2008, at 11:57 AM, Jonathan Charles wrote:
> So, just curious as to what potential side effects could be in the
> following:
> Publisher CCM 4.1(3)Sr5b
> Subscriber: CCM 4.1(3)es122.1
> I am thinking really bad things, but I want the customer to understand
> how bad...  they are pushing back on patching.... I want rain of fire
> kind of stuff....
>
>
>
>
> Jonathan
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