<html><head><style>body{font-family:Helvetica,Arial;font-size:13px}</style></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div><div><blockquote type="cite" class="clean_bq" style="font-family: Helvetica, Arial; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><span><div><div>Which versions did you use? Today I updated the PPA and a few minutes<br>ago I tried to reproduce your scenario. Works for me as expected<br>(several rounds of "dd" on top of the ext4 fs).<br><br>So please try to reproduce with the latest releases in the PPA (kernel<br>module 9.0.3, utils 8.9.7, drbdmange 0.97) and report back if your<br>problem still exists.<br><br>Regards, rck</div></div></span></blockquote></div><p><br></p><p>(resending to trim contents into gists)</p><p><br></p><p>I updated today after I saw the updated ppa bits on both nodes:</p><p><br></p><p><snip></p><p>drbd-dkms/xenial,now 9.0.3-1ppa1~xenial1 all [installed]</p><p>drbd-utils/xenial,now 8.9.7-1ppa1~xenial1 amd64 [installed]</p><p>python-drbdmanage/xenial,now 0.97-1ppa1~xenial1 all [installed]</p><p></snip></p><p><br></p><p>And both nodes to appear to be running the latest build:</p><p><br></p><p><snip></p><p>root@elysium-test01:~# drbdadm --version</p><p>DRBDADM_BUILDTAG=GIT-hash:\ 7ea0389343845f8336793f9163f71e31133be6af\ build\ by\ buildd@lgw01-02\,\ 2016-07-15\ 09:15:48</p><p>DRBDADM_API_VERSION=2</p><p>DRBD_KERNEL_VERSION_CODE=0x090003</p><p>DRBDADM_VERSION_CODE=0x080907</p><p>DRBDADM_VERSION=8.9.7</p><p>root@elysium-test01:~# drbdmanage --version</p><p>drbdmanage 0.97; GIT-hash: d0032c6a22c29812263ab34a6e856a5b36fd7da0</p><p>root@elysium-test01:~# cat /proc/drbd </p><p>version: 9.0.3-1 (api:2/proto:86-111)</p><p>GIT-hash: a14cb9c3818612dfb8c3288db28a591d5a0fc2a6 build by root@elysium-test01, 2016-07-15 17:48:17</p><p>Transports (api:14): tcp (1.0.0)</p><p></snip></p><p><br></p><p><snip></p><p>root@elysium-test02:~# drbdadm --version</p><p>DRBDADM_BUILDTAG=GIT-hash:\ 7ea0389343845f8336793f9163f71e31133be6af\ build\ by\ buildd@lgw01-02\,\ 2016-07-15\ 09:15:48</p><p>DRBDADM_API_VERSION=2</p><p>DRBD_KERNEL_VERSION_CODE=0x090003</p><p>DRBDADM_VERSION_CODE=0x080907</p><p>DRBDADM_VERSION=8.9.7</p><p>root@elysium-test02:~# drbdmanage --version</p><p>drbdmanage 0.97; GIT-hash: d0032c6a22c29812263ab34a6e856a5b36fd7da0</p><p>root@elysium-test02:~# cat /proc/drbd </p><p>version: 9.0.3-1 (api:2/proto:86-111)</p><p>GIT-hash: a14cb9c3818612dfb8c3288db28a591d5a0fc2a6 build by root@elysium-test02, 2016-07-15 17:48:21</p><p>Transports (api:14): tcp (1.0.0)</p><p></snip></p><p><br></p><p>FTR I’m using just the standard gcloud ubuntu 16.04 image:</p><p><br></p><p><snip></p><p>ubuntu-1604-xenial-v20160627</p><p>Description</p><p>Canonical, Ubuntu, 16.04 LTS, amd64 xenial image built on 2016-06-27</p><p>Creation time</p><p>Jun 28, 2016, 2:54:42 AM</p><p></snip></p><p><br></p><p>And I did `apt upgrade` it before trying any of this.</p><p><br></p><p>Linux elysium-test01 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux</p><p>Linux elysium-test02 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux</p><p><br></p><p> * * *</p><p><br></p><p>Problems still occur however. I ran into this just now when testing mounting/unmounting the volume on the 2 nodes. This happened when unmounting on elysium-test02, logs from elysium-test01:</p><p>https://gist.github.com/jdillon/a823d7e4e9184c9ea6bb7df3e2fd9216</p><p><br></p><p>And the umount process on elysium-test02 is now wedged, with logs: </p><p>https://gist.github.com/jdillon/6126028d7cb2210f35edc0393ae60dca</p><p><br></p><p>FTR I tried this a bunch of times and it worked as expected once or twice, then freaked out. :-(</p><p>—jason</p><div><br class="Apple-interchange-newline"></div></div><div><br></div></body></html>