[Openswan dev] OpenSwan 2.6.10-1 on OpenWrt 7.09 consistently hangs on large HTTP file transfer

[Paul Wouters]

On Tue, 4 Dec 2007, starlight at binnacle.cx wrote:

> Ok, finally reproduced the problem.  Strangely this time
> OpenSwan did not lock up, but instead the remote could not

So this might be a different issue. Especially because it does
not show any memory problems in your logs.

> Anyway here is the failure log.  The blowout is at the 18:38
> time interval.  Traffic was flowing from the 10.81.82.5.

And no odd signs at that time either.

So you start with:

        total:    used:    free:  shared: buffers:  cached:
Mem:  14647296 14008320   638976        0   999424  5206016
Swap:        0        0        0
MemTotal:        14304 kB
MemFree:           624 kB

and you end with:

        total:    used:    free:  shared: buffers:  cached:
Mem:  14647296 14032896   614400        0   999424  4964352
Swap:        0        0        0
MemTotal:        14304 kB
MemFree:           600 kB

At the beginning your're briefly losing 300kb, but then you stay
stable on 600kb free. So memory isn't reall your problem, though
I guess you are running a bit low, but you have a 4.9MB cache
space to take memory from. No dip around 18:38 either

Comparing the first and last slabinfo, and the one at 18:38, there aren't
any values that have suddenly changed beyond a few percent.

I don't think you are running out of memory. But I also do not know what
your problem is.

At least, not on this bug. Perhaps when it crashes, things are different.

Paul