On 4/5/2013 8:33 PM, Gregg Levine wrote:
On Fri, Apr 5, 2013 at 9:26 PM, Leland Lucius <[email protected]> wrote:
On 4/5/2013 5:59 PM, Pedro Principeza wrote:
Hi.
Although it seems to have all the needed permissions and nodes. Have you
tried to recreate it, using:
mknod /dev/urandom c 1 9
Same result...still returning zero bytes.
Leland
Hello!
Isn't the mechanism that works that thing connected to the I/O
functions of the average System Z? I seem to recall that when an
almost related problem surfaced a while back, the solution was to
engage those I/O functions by doing some.
Ideally why not have the system write something (or other) to files
and then check to see if the thing is working.
Feel free to disregard my suggestion if it doesn't work, or if its not
at all applicable.
Yepper, urandom and, I believe, the whole in-kernel entropy thing is
related to various pseudo-random activities occurring within the system.
Unless (or maybe in addition to) you have a hardware prng which we do
on z.
But, I believe the guest has lost his cookies. Here's what the current
kernel random proc config looks like on a healthy server:
pzsfs102:~ # grep '' /proc/sys/kernel/random/*
/proc/sys/kernel/random/boot_id:2a009fed-694b-4ad1-a110-471f5310ed16
/proc/sys/kernel/random/entropy_avail:2782
/proc/sys/kernel/random/poolsize:4096
/proc/sys/kernel/random/read_wakeup_threshold:64
/proc/sys/kernel/random/uuid:6cf52c84-b907-42c8-a963-7ed9d4b252d9
/proc/sys/kernel/random/write_wakeup_threshold:1024
And here's the values on the sickly fella:
pzsfs101:~ # grep '' /proc/sys/kernel/random/*
/proc/sys/kernel/random/boot_id:00000000-0000-4000-8000-000000000000
/proc/sys/kernel/random/entropy_avail:1380
/proc/sys/kernel/random/poolsize:4096
/proc/sys/kernel/random/read_wakeup_threshold:64
/proc/sys/kernel/random/uuid:00000000-0000-4000-8000-000000000000
/proc/sys/kernel/random/write_wakeup_threshold:1024
The boot_id and uuid values make me believe that something is not quite
right.
Leland
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