1 files changed, 69 insertions, 0 deletions
diff --git a/open_issues/screen_dead_session.mdwn b/open_issues/screen_dead_session.mdwn
new file mode 100644
index 00000000..fe51523b
--- /dev/null
+++ b/open_issues/screen_dead_session.mdwn
@@ -0,0 +1,69 @@
+[[!meta copyright="Copyright © 2010, 2011 Free Software Foundation, Inc."]]
+
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]
+
+[[!tag open_issue_porting]]
+
+Comparing to GNU/Linux, on GNU/Hurd it happens much more often and easily for
+*screen* sessions to become *dead*.  This is annoying, as it defeats one of
+*screen*'s main purposes.
+
+[[!toc]]
+
+
+# One reproducible scenario goes like this
+
+  * `ssh [somewhere]`,
+
+  * start a *screen* session, and some long-running process *P* in there,
+
+  * at some point the link is forcefully terminated (also known as disconnect
+    after 24 hours with consumer DSL),
+
+  * *P* will continue to execute,
+
+  * at some point, *P* will terminate / hang (after having received some kind
+    of signal?), and the *screen* session will be reported as *dead*.
+
+
+# Another one, not as often reproduced
+
+  * `ssh [somewhere]`,
+
+  * start a *screen* session, and some long-running process *P* in there,
+
+  * at some point the link is forcefully terminated (also known as disconnect
+    after 24 hours with consumer DSL),
+
+  * `ssh [somewhere]`,
+
+  * `screen -x`, and notice that *P* will *immediatelly* terminate / hang
+    (after having received some kind of signal?), and the *screen* session will
+    *immediatelly* be reported as *dead*.  (Perhaps the other way round: upon
+    re-attaching, the *screen* session goes bonkers and takes *P* with it?)
+
+
+# IRC, freenode, #hurd, 2011-10-19
+
+    <antrik> tschwinge: hm... haven't seen screen dying in a long time
+    <tschwinge> antrik: It's easy, and goes like this: have a session on one
+      system, log in from another, do screen -x and wait some time.
+    <antrik> I do this regularily. haven't had a crash in ages.
+    <antrik> (BTW, I'm not sure I ever had a crash on srceen -x... at that
+      time, I wasn't using -x. I often had crashes with screen -r. my
+      impression back then was that it works better when doing -rd -- in fact,
+      I always do that now, so I can't say whether crashes still happen with
+      only -r...)
+
+2011-10-26:
+
+    <antrik> so I was saying the other day that I haven't had a screen crash in
+      a long time... well, here it was :-(
+    <antrik> this time it didn't crash on reconnect though, but already
+      before. probably when I killed the hanging ssh connection