Hifn driver in SMP (was Re: GELI - disk encryption GEOM class
sam at errno.com
Tue Aug 9 04:19:28 GMT 2005
Mike Tancsa wrote:
> At 11:12 AM 08/08/2005, Poul-Henning Kamp wrote:
>> I belive there is a bug in the HiFn chips that makes them do a soft reset
>> under some set of circumstances which we have never been able to nail
> I think this is something different. I know the issue you are
> referring to, and it seems to happen on many (but not all) motherboards.
> Note, this problem does not happen in UP mode on this box, only on SMP.
> Also, I just booted RELENG_4_11 on the box and installed an SMP kernel.
> hippo# hifnstats
> input 7648447680 bytes 2338053 packets
> output 7648431264 bytes 2338052 packets
> invalid 0 nomem 0 abort 0
> noirq 1263291 unaligned 0
> totbatch 0 maxbatch 0
> nomem: map 0 load 0 mbuf 0 mcl 0 cr 0 sd 0
> I am able to run
> /usr/bin/openssl aes-128-cbc -in big -k pass | ssh -c aes128-cbc
> mdtancsa at 127.0.0.1 "cat - > /dev/null"
> until the cows come home without issue, even with an SMP kernel built.
> So it seems like its something with this box and RELENG_6 that causes
> the box to totally lock up
I much prefer cryptotest for exercising the hardware. If you increase
the number of concurrent threads (-t I think) you can really load the
I wouldn't be surprised if there were an smp locking bug in the crypto
code as I'm not sure it's been well-exercised recently and with more of
the kernel coming out from under Giant the locking within the subsystem
is getting more testing.
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