[c-nsp] Recent 3750X oddity

[Bryan Holloway]

In case anyone's interested, this problem mysteriously stopped occurring 
about two days after I first reported it to the list.

Curiously enough, it started happening again on Monday, September 25th, 
and again it has gone silent.

Two separate individuals reached out to me off-list -- first in July, 
and again the other day -- with similar symptoms, so I'm reasonably 
certain that it's not just me.

I can also say with reasonable certainty that downgrading the firmware 
from 15.2 to 15.0 seems to solve the issue.

Anyway, just an FYI for the list.


On 7/26/17 7:19 PM, Bryan Holloway wrote:
> After running fine for months or years, over the last 12-24 hours, we've 
> experienced spontaneous crashes of Cisco 3750Xs in multiple regions, 
> which suggests that perhaps there's some new type of traffic or exploit 
> that is causing this to occur.
> 
> We are running 15.2(4)4, the latest ...
> 
> Before I open up a TAC case, is anyone else noticing this behavior?
> 
> Last reload reason: Unknown reason
> Last reset from address error
> %PLATFORM-1-CRASHED: Debug Exception (Could be NULL pointer dereference) 
> Exception (0x2000)!
> 
> ... or are we just unlucky?
> 
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