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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2015-02-18 00:58:35 +0100 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2015-02-18 00:58:35 +0100 |
commit | 49a086299e047b18280457b654790ef4a2e5abfa (patch) | |
tree | c2b29e0734d560ce4f58c6945390650b5cac8a1b /open_issues/screen_dead_session.mdwn | |
parent | e2b3602ea241cd0f6bc3db88bf055bee459028b6 (diff) | |
download | web-49a086299e047b18280457b654790ef4a2e5abfa.tar.gz web-49a086299e047b18280457b654790ef4a2e5abfa.tar.bz2 web-49a086299e047b18280457b654790ef4a2e5abfa.zip |
Revert "rename open_issues.mdwn to service_solahart_jakarta_selatan__082122541663.mdwn"
This reverts commit 95878586ec7611791f4001a4ee17abf943fae3c1.
Diffstat (limited to 'open_issues/screen_dead_session.mdwn')
-rw-r--r-- | open_issues/screen_dead_session.mdwn | 69 |
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 |