<div dir="ltr">Dear Phil,<br><br>Thank you for your new patch.<div><br> - <a href="http://git.drbd.org/drbd-9.0.git/commitdiff/ded61af75823ddd96da729c84278f7d26a9b3a7d">http://git.drbd.org/drbd-9.0.git/commitdiff/ded61af75823ddd96da729c84278f7d26a9b3a7d</a><br><br><br>1. I think this patch should resolve CASE-14, CASE-20.<br><br> 1) CASE-14: <br><br> [DRBD-user] [CASE-14] primary node hang by VM-net-disconnect during big file copy<br> <a href="http://lists.linbit.com/pipermail/drbd-user/2016-February/022701.html">http://lists.linbit.com/pipermail/drbd-user/2016-February/022701.html</a><br><br> - See my comments "10) worker thread deadlock" and "11) receiver thread deadlock" <br> - This deadlock disappeared. </div><div> - Not reproduced yet.</div><div><br> 2) CASE-20:<br><br> [DRBD-user] [CASE-20] What is the tail_recursion operation during drbd_req_destroy?<br> <a href="http://lists.linbit.com/pipermail/drbd-user/2016-February/022719.html">http://lists.linbit.com/pipermail/drbd-user/2016-February/022719.html</a><br><br> - Panic by "tail_recursion" disappeared also.<br><br><br>2. Another problem occurred !!!<br><br> 1) Test-step<br><br> - Test scenario is similar as CASE-14.<br> - During big file copy, If you disconnect and connect by VM network icon<br> then each node sometimes goes to WFBitMapS-WFBitMapT status continuously and file copy command on the primary hangs.<br><br><br> 2) Log (/var/log/messages) analysys:<div><br> (1) primary log<br> - Click <a href="http://pastebin.com/3hAWNkHn">http://pastebin.com/3hAWNkHn</a><br><br> (2) secondary log<br> - Click <a href="http://pastebin.com/KK1MUbDT">http://pastebin.com/KK1MUbDT</a><br><br><br>3. Questions<br><br> 1) Why did not start resyn after WFBitMapS-WFBitMapT?<br><br> 2) What is this ASSERT?<br> - "Mar 3 14:38:28 drbd9-02 kernel: drbd r0/0 drbd1: ASSERT FAILED cstate = SyncTarget, expected: WFSyncUUID|WFBitMapT|Behind"<br><br>Please check my comments in the attached log files.<br><br>Thanks.<br>
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