On Fri, Feb 01, 2002 at 02:50:31PM -0500, Robert Love wrote:
| What is the output of `/proc/sys/kernel/random/entropy_avail' when
| programs are stalled? Is it actually 0?
Yep, and it never raises above that -- it doesn't jump around even after
a month.
| Can you see if any programs are perhaps draining entropy in the
| background? See what has /dev/[u]random open ... note even /dev/urandom
| uses entropy, its the same as /dev/random, except it doesn't care when
| the entropy estimate is 0.
I've scanned /proc to verify that all PIDs do not have an FD open to
/dev/random. This was my first guess when this started -- some
developer was draining entropy in a while(1) loop. I believe I went so
far as to go to runlevel 1 with nothing but sh and kernel threads.
That may not be comprehensive, so I'm open to other diagnostic tips.
And yes, /dev/urandom does continue to work, as expected.
Thanks!
-- Ken. brownfld@irridia.com| Robert Love - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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