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Bug#912087: openssh-server: Slow startup after the upgrade to 7.9p1



On Sun, Oct 28, 2018 at 11:41:14AM +0100, Bernhard Übelacker wrote:
> Dear Maintainer,
> just some more information, because I think I see this
> difference in my qemu buster amd64 VM too.
> 
> Before I could ssh into that machine just after some seconds.
> 
> Now it takes some time until that line "random: crng init done"
> appears in dmesg.
> With logging in in the qemu window this line appears just after a
> few seconds, when just trying via ssh it takes much longer.

I have a NAS running Debian[1] and there I only get the "crng init done"
message after more than 15 minutes (even though there is network activity and I
debugged the failure via rs232):

	root@machine:~# dmesg | tail
	[   22.579884] audit: type=1400 audit(1529665920.708:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_filter" pid=299 comm="apparmor_parser"
	[   22.627877] audit: type=1400 audit(1529665920.708:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="man_groff" pid=299 comm="apparmor_parser"
	[   22.711102] 8021q: 802.1Q VLAN Support v1.8
	[   22.840150] mvneta d0074000.ethernet eth1: PHY [d0072004.mdio-mii:01] driver [Marvell 88E1318S]
	[   22.856020] mvneta d0074000.ethernet eth1: configuring for phy/rgmii-id link mode
	[   22.872501] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
	[   26.020202] mvneta d0074000.ethernet eth1: Link is Up - 1Gbps/Full - flow control rx/tx
	[   26.027639] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
	[ 1057.771583] random: crng init done
	[ 1057.774739] random: 7 urandom warning(s) missed due to ratelimiting

I'm not aware the machine has a random number generator, so the solutions
presented here up to now don't help me.

I think the idea to mention this in the release notes for buster is a
good one (unless a solution is found until then of course).

Best regards
Uwe

[1] this i an armv7/mvebu machine with a Armada 370 CPU

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