Bugs while using encrypted HAMMER root fs

[Matthias Schmidt]

* Matthew Dillon wrote:
> 
>     How much memory does this system have?  The problem is almost
>     certainly buffer cache / memory-exhaustion.  The crypto layer
>     uses memory heavily.  We need a kernel panic / kernel core
>     when it gets stuck to verify that is the issue.  Swap cannot
>     be encrypted if you want the kernel core to have a chance of
>     succeeding in this situation.
> 
>     Both hammer cleanup and crypto are heavy kernel memory users.

I was able to crash the system but I didn't get a crash dump again.  I
started dozens of applications in X (including FF and soffice) and ran
hammer reblock while on syscons.  The last message I saw before the
system freezed was:

td 0xc04a24c0 (ithread 69) unexpectedly rescheduled

Cheers  

        Matthias