Skip to content

Instantly share code, notes, and snippets.

@rk295
rk295 / -
Created January 26, 2015 16:00
foo
@rk295
rk295 / -
Created January 28, 2015 10:50
10:50:02 up 9 days, 18:18, 2 users, load average: 0.58, 1.26, 1.09
@rk295
rk295 / CF Weirdness.md
Created April 10, 2015 15:43
CF Weirdness

The following Cloudformation snippet produces this name tag olive-asg-asgElb-16GSCPHUFSWEN. The stack name was olive-asg so I was expecting olive-asg-asgElb, without the -16GSCPHUFSWEN on the end!

Tags: [
    {
        Key: "Name",
        Value: {
            "Fn::Join": [
                "-",
 [
@rk295
rk295 / -
Created April 14, 2015 14:14
foo
@rk295
rk295 / -
Created April 25, 2015 16:07
Apr 24 16:52:39 sn-b12 kernel: JBD: barrier-based sync failed on dm-18-8 - disabling barriers
Apr 24 16:56:42 sn-b12 kernel: INFO: task pdflush:699 blocked for more than 120 seconds.
Apr 24 16:56:42 sn-b12 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 24 16:56:42 sn-b12 kernel: pdflush D ffffffff801583d9 0 699 331 700 698 (L-TLB)
Apr 24 16:56:42 sn-b12 kernel: ffff81043f7eb750 0000000000000046 0000000000000010 000000104e1ab940
Apr 24 16:56:42 sn-b12 kernel: ffff810429d02c58 000000000000000a ffff81083fe1c0c0 ffff81043fd020c0
Apr 24 16:56:42 sn-b12 kernel: 00003f6801b18a86 000000000000c81e ffff81083fe1c2a8 000000083f253360
Apr 24 16:56:42 sn-b12 kernel: Call Trace:
Apr 24 16:56:42 sn-b12 kernel: [<ffffffff887bb135>] :ext4:ext4_mb_use_best_found+0x2d6/0x3a9
Apr 24 16:56:42 sn-b12 kernel: [<ffffffff887847a6>] :jbd2:do_get_write_access+0x212/0x418

Keybase proof

I hereby claim:

  • I am rk295 on github.
  • I am rk295 (https://keybase.io/rk295) on keybase.
  • I have a public key whose fingerprint is 698F 2DE7 BECE 60DE 25FC 495A 7029 D1CD AC3C 18F4

To claim this, I am signing this object:

May 7 20:22:18 sn-b12 kernel: INFO: task lsi_mrdsnmpagen:6012 blocked for more than 120 seconds.
May 7 20:22:18 sn-b12 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 7 20:22:18 sn-b12 kernel: lsi_mrdsnmpag D ffffffff801583d9 0 6012 1 6013 5991 (NOTLB)
May 7 20:22:18 sn-b12 kernel: ffff81043b96bd38 0000000000000086 ffff81043ce48ac0 0000004400000006
May 7 20:22:18 sn-b12 kernel: ffff810440004c20 0000000000000007 ffff81043b87b080 ffffffff8031db60
May 7 20:22:18 sn-b12 kernel: 0000058bb8701ed1 000000000000874d ffff81043b87b268 0000000040004c20
May 7 20:22:18 sn-b12 kernel: Call Trace:
May 7 20:22:18 sn-b12 kernel: [<ffffffff880b7391>] :megaraid_sas:megasas_issue_blocked_cmd+0x7a/0x94
May 7 20:22:18 sn-b12 kernel: [<ffffffff800a3fa1>] autoremove_wake_function+0x0/0x2e
May 7 20:22:18 sn-b12 kernel: [<ffffffff880b86f5>] :megaraid_sas:megasas_mgmt_ioctl_fw+0x310/0x454
# force HTTP to HTTPS - /etc/nginx/conf.d/nonssl.conf
server {
listen 80;
server_name jira.example.com;
access_log off;
return 301 https://$server_name$request_uri;
}
# /etc/nginx/conf.d/jira.conf
server {
May 14 09:41:17 sn-b12 kernel: INFO: task jbd2/dm-19-8:4994 blocked for more than 120 seconds.
May 14 09:41:17 sn-b12 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 14 09:41:17 sn-b12 kernel: jbd2/dm-19-8 D ffffffff801583d9 0 4994 331 4995 4985 (L-TLB)
May 14 09:41:17 sn-b12 kernel: ffff81043f9fbbc0 0000000000000046 ffff81083f34d968 ffff81017f67c6c8
May 14 09:41:17 sn-b12 kernel: ffffffff8002917a 000000000000000a ffff81082bc7b080 ffff81010ef37080
May 14 09:41:17 sn-b12 kernel: 00003ce5f644d47b 000000000007cf78 ffff81082bc7b268 000000018807b9a0
May 14 09:41:17 sn-b12 kernel: Call Trace:
May 14 09:41:17 sn-b12 kernel: [<ffffffff8002917a>] sync_page+0x0/0x43
May 14 09:41:17 sn-b12 kernel: [<ffffffff8006eda2>] do_gettimeofday+0x40/0x90
May 14 09:41:17 sn-b12 kernel: [<ffffffff8002917a>] sync_page+0x0/0x43
-----BEGIN PGP MESSAGE-----
Version: GnuPG v1
hQEMA+6xToKl0UZcAQf+Lj6R0W97YssfOv777FwjtnTLs9bVGYtcZWzsIvSII0vP
rwdKOYsM+e117ebhneL+2T5teRuZFLMEvPPk/6vxC1OjqohSyvWG/3mMElezIno5
/bwp6fbacalgWwjOs3UEk9z8ps7oi7FIzaGc+S+0EgwOMLV3vZevV9GYzAkdpGQz
2ZAlq9qznSoyt4XhNKUw3EiVn2PiJoKC62isP0+nTPQxP6zDja/BTfxB/LyQDdIu
vPPV/nxxFfUwVO63agUqh0SOYMTBaR6vT8vdxqy4AV6p+fNVZy469IZ7iFwZ7b/9
g32gtTrs+7UVPk96vVX4ue5s1JpEclO1e8NVOoKQJdJSAUvSw+LcvLyvgjy+wavk
kzZfeuFAzrWrJH2iUiwjaV5o8rr8j0SdKI8lFp0s/MM6eQA8dQpkLyAOqiUCxJK+