Linode.com Forum

[caker]

The following hosts require a kernel upgrade, for a number of reasons.

These machines are running a kernel version which is vulnerable to the brk kernel exploit recently announced (for reference, someone needs a shell account to exploit it, which no one has on any of the hosts).

Some users have reported network issues or blips in connectivity. This appears to be fixed in later versions of ebtables running on more recent hosts, so this should fix that as well.

2.4.23 contains VM improvements by default, and I've also added a read latency patch which makes the I/O scheduler more sane about the way it handles reads vs writes. This should prove to be a big gain in disk performance and a big reduction in lag under load.

Reboot Schedule

Thu, Dec 4, 2003 23:00 EST (-5 GMT):
host6

Fri, Dec 5, 2003 23:00 EST (-5 GMT):
host1 and host2

Sat, Dec 6, 2003 23:00 EST (-5 GMT):
host3, host5, host7 and host8

Mon, Dec 8, 2003 23:00 EST (-5 GMT):
host9, host10

All Linodes will be shutdown properly, the host will be rebooted, and then your Linode will be rebooted using the last used config profile.

Actual down-time should be between 15-45 minutes. Please allow a one to two hour window (especially for Saturday) for the reboot to occur.

If this affects you, you'll be getting an email from me shortly.

Status and details will be posted on this thread.

Thanks,
-Chris

[adamgent]

There goes your 150+ uptime on host1

Adam

[caker]

[root@host6 vbin]# uptime
22:59:47 up 83 days, 9:59, 2 users, load average: 0.17, 0.17, 0.11

Host6 reboot complete

[caker]

[root@host1 root]# uptime
23:09:06 up 174 days, 17:53, 3 users, load average: 0.71, 1.83, 1.34

Longest running Linode, as well -- since June 22, 2003.

Host1 upgrade complete

[caker]

[root@host2 root]# uptime
23:31:27 up 174 days, 18:02, 1 user, load average: 1.91, 1.19, 0.95

Host2 upgrade complete

[caker]

[root@host3 boot]# uptime
22:58:56 up 150 days, 23:42, 3 users, load average: 1.23, 1.31, 1.35

Host3 upgrade complete.

[caker]

[root@host5 boot]# uptime
23:21:26 up 119 days, 8:30, 2 users, load average: 1.01, 2.84, 2.58

Host5 upgrade complete

[caker]

[root@host7 boot]# uptime
22:34:02 up 38 days, 17:58, 1 user, load average: 3.53, 3.59, 3.64

Host7 upgrade complete

[caker]

[root@host8 boot]# uptime
22:34:03 up 85 days, 9:10, 0 users, load average: 2.55, 3.57, 4.25

Host8 upgrade complete

[caker]

[root@host9 boot]# uptime
23:02:48 up 61 days, 9:21, 2 users, load average: 0.71, 0.89, 1.19

Host9 upgrade complete

[caker]

[root@host10 boot]# uptime
23:27:54 up 31 days, 5:43, 2 users, load average: 1.65, 2.27, 1.65

Host10 upgrade complete.

Thanks all!
-Chris