Jamie Lokier wrote:
Ian Molton wrote:
Besides, not all entropy comes from /dev/random.
Those arguments are weak.
No worse than the counterarguments.
If nothing else, qemu is a useful tool for testing kernel subsystems and
in fact the virtio code triggered and caused to be fixed a number of
Ian Molton wrote:
Jamie Lokier wrote:
I'm a bit puzzled.
Why isn't virtio-rng getting entropy from /dev/random on the host?
/dev/random may not be available.
Understood on a non-Linux host.
Besides, not all entropy comes from /dev/random.
On a Linux host, why isn't rngd simply
Jamie Lokier wrote:
Ian Molton wrote:
Jamie Lokier wrote:
I'm a bit puzzled.
Why isn't virtio-rng getting entropy from /dev/random on the host?
/dev/random may not be available.
Understood on a non-Linux host.
Or a linux host with a user with insufficient privs...
Besides, not all
Ian Molton wrote:
Besides, not all entropy comes from /dev/random.
On a Linux host, why isn't rngd simply injecting it's entropy into
/dev/random where it would be more convenient to access? (No need for
socket reconnection code, for example).
Who knows? lack of privs, an admin who
Krumme, Chris wrote:
Hello Ian,
Hello!
Qemu_malloc will never return 0, so sched function can return void.
Gah! nasty. Check removed.
This is a mixture of tabs and spaces, for new code pick one.
I've been sticking with spaces generally. I can't find 'CodingStyle' so
I copied. I think
Am 03.12.2009 11:04, schrieb Ian Molton:
Krumme, Chris wrote:
This is a mixture of tabs and spaces, for new code pick one.
I've been sticking with spaces generally. I can't find 'CodingStyle' so
I copied. I think spaces suck for this though. What is acceptable?
linux kernel style ?
Four
Anthony Liguori wrote:
sleep() in qemu is very, very wrong. It will pause the guest's
execution and all sorts of badness can ensue.
Quite...
The right thing to do is set a timer and not generate data while
disconnected.
New patch attached, now with less crack...
I still am not
Ian Molton wrote:
Anthony Liguori wrote:
sleep() in qemu is very, very wrong. It will pause the guest's
execution and all sorts of badness can ensue.
Quite...
The right thing to do is set a timer and not generate data while
disconnected.
New patch attached, now with less
, December 02, 2009 4:41 AM
To: Anthony Liguori
Cc: Krumme, Chris; qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Socket reconnection.
Anthony Liguori wrote:
sleep() in qemu is very, very wrong. It will pause the guest's
execution and all sorts of badness can ensue.
Quite...
The right
@nongnu.o
rg] On Behalf Of Ian Molton
Sent: Tuesday, December 01, 2009 5:54 AM
To: Anthony Liguori
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Socket reconnection.
Anthony Liguori wrote:
Ian Molton wrote:
Hi folks,
I need my source of data for virtio-rng to be reliable -
IOW
Krumme, Chris wrote:
Hello Ian,
Hi!
Should you be introducing a while sleep loop into Qemu here?
I would think you should be returning 'no data', maybe after trying
once.
Indeed.
I could have sworn I tried that. Too much crack, will re-do.
Krumme, Chris wrote:
Hello Ian,
Since you did not inline your source I will paste in a chunk:
@@ -2030,10 +2036,18 @@ static void tcp_chr_read(void *opaque)
if (s-listen_fd = 0) {
qemu_set_fd_handler(s-listen_fd, tcp_chr_accept, NULL,
chr);
}
-
Ian Molton wrote:
Hi folks,
I need my source of data for virtio-rng to be reliable - IOW. if the
server dies and comes back up, I want qemu to reconnect and suck down
fresh entropy, rather than hand the rngd process on the guest.
I'm using the chardev 'socket' type to make the connection to
Ian Molton wrote:
Hi folks,
I need my source of data for virtio-rng to be reliable - IOW. if the
server dies and comes back up, I want qemu to reconnect and suck down
fresh entropy, rather than hand the rngd process on the guest.
I'm using the chardev 'socket' type to make the connection
Hi,
Would a patch adding (optional) auto-reconnect (with a back-off delay)
to the socket chardev be acceptable ?
Sounds sensible to me. And, yes, it should be an option (defaulting to
off to maintain current behavior when not specified).
cheers,
Gerd
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