Re: [STUMP] couldn't create pipe: "Too many open files"

[Stefan Reichör]

Hello David!

> Hi,
>
> I'm brand new to stumpwm.  Mostly, it's working great but I do have a 
> question for this list.
>
> When I start up, everything works right.  But eventually, after I'm not sure 
> how long, the date and time disappears from the mode line.  I copied my mode 
> line settings from a .stumpwmrc I found online (sorry I don't remember 
> exactly who originally posted it):
>
> ;; modeline format
>  (setf *screen-mode-line-format*
>        (list "[^B" '(:eval (run-shell-command "date '+%R, %F %a'|tr -d 
> [:cntrl:]" t)) "^b]"
>              " | %B"
>              " | [^B%n^b] %W"))
>
>
> This works as expected, at first.  After the mode-line disappears, I try 
> evaluating the (run-shell-command "date '+%R, %F %a'|tr -d [:cntrl:]" t)) in 
> emacs, using stumpwm-mode.  Doing this, I see the error, full text below, but 
> basically the error is couldn't create pipe: "Too many open files".
>
> Now, the rest of my system works fine.  I can run `date` on the command line, 
> for example.  So I'm not noticing any other "too many open files" problems.  
> I suspect the stump mode line is leaving a file handle open every time it 
> updates.  Is this possible?
>
> Thanks for any help and thanks for this great window manager,


Perhaps the shell command lsof can help to track down the problem. Take
a look when you start stumpwm and when the problem arises.

Stefan.

> -Dave
>
>
>
> couldn't create pipe: "Too many open files"0: (SB-DEBUG::MAP-BACKTRACE
>     #<CLOSURE (LAMBDA # :IN SB-DEBUG:BACKTRACE) {C2A680D}>
>     :START
>     0
>     :COUNT
>     100)
> 1: (SB-DEBUG:BACKTRACE 100 #<SB-IMPL::STRING-OUTPUT-STREAM {C2A67B9}>)
> 2: (STUMPWM::BACKTRACE-STRING)
> 3: (ERR "~A" #<SIMPLE-ERROR "couldn't create pipe: ~S" {C2A6081}>)
> 4: (STUMPWM::EVAL-LINE
>     "(run-shell-command \"date '+%R, %F %a'|tr -d [:cntrl:]\" t)")
> 5: (STUMPWM::CALL-INTERACTIVELY
>     "eval"
>     #S(STUMPWM::ARGUMENT-LINE
>        :STRING "eval (run-shell-command \"date '+%R, %F %a'|tr -d [:cntrl:]\" 
> t)"
>        :START 62))
> 6: (STUMPWM::EVAL-COMMAND
>     "eval (run-shell-command \"date '+%R, %F %a'|tr -d [:cntrl:]\" t)"
>     NIL)
> 7: (STUMPWM::HANDLE-STUMPWM-COMMANDS #<XLIB:WINDOW :0 AE>)
> 8: (STUMPWM::HANDLE-EVENT
>     :DISPLAY
>     #<XLIB:DISPLAY :0 (The X.Org Foundation R11102000)>
>     :EVENT-KEY
>     :PROPERTY-NOTIFY
>     :EVENT-CODE
>     28
>     :SEND-EVENT-P
>     NIL
>     :SEQUENCE
>     15142
>     :WINDOW
>     #<XLIB:WINDOW :0 AE>
>     :EVENT-WINDOW
>     #<XLIB:WINDOW :0 AE>
>     :ATOM
>     :STUMPWM_COMMAND
>     :TIME
>     15340521
>     :STATE
>     :NEW-VALUE)
> 9: ((FLET SB-THREAD::WITH-RECURSIVE-LOCK-THUNK :IN XLIB:PROCESS-EVENT))
> 10: ((FLET #:WITHOUT-INTERRUPTS-BODY-88685 :IN 
> SB-THREAD::CALL-WITH-RECURSIVE-LOCK))
> 11: (SB-THREAD::CALL-WITH-RECURSIVE-LOCK
>      #<CLOSURE (FLET SB-THREAD::WITH-RECURSIVE-LOCK-THUNK :IN 
> XLIB:PROCESS-EVENT)
>        {B78ECBB5}>
>      #<SB-THREAD:MUTEX "CLX Event Lock"
>          owner: #<SB-THREAD:THREAD "initial thread" RUNNING {B5C96E1}>>)
> 12: (XLIB:PROCESS-EVENT
>      #<XLIB:DISPLAY :0 (The X.Org Foundation R11102000)>
>      :HANDLER
>      #<FUNCTION STUMPWM::HANDLE-EVENT>
>      :TIMEOUT
>      NIL
>      :PEEK-P
>      NIL
>      :DISCARD-P
>      NIL
>      :FORCE-OUTPUT-P
>      T)
> 13: (STUMPWM::STUMPWM-INTERNAL-LOOP)
> 14: (STUMPWM::STUMPWM-INTERNAL ":0.0")
> 15: (STUMPWM ":0.0")
> 16: ((LAMBDA ()
>        :IN
>        
> "/tmp/yaourt-tmp-dave/aur-stumpwm-git/src/stumpwm-build/make-image.lisp"))
> 17: ((FLET #:WITHOUT-INTERRUPTS-BODY-225282 :IN SB-EXT:SAVE-LISP-AND-DIE))
> 18: ((LABELS SB-IMPL::RESTART-LISP :IN SB-EXT:SAVE-LISP-AND-DIE))
>
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