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bug#18705: 24.3.93; Hang in ns_select -> [NSApp run] -> oo
From: |
Jan Djärv |
Subject: |
bug#18705: 24.3.93; Hang in ns_select -> [NSApp run] -> oo |
Date: |
Wed, 15 Oct 2014 19:50:52 +0200 |
Hello.
Cocoa does not allow you to disconnect and connect the GUI like X can.
So running a Cocoa compiled Emacs as --daemon does not make much sense.
You are seeing the consequence of this.
So basically, don't do this. :-)
Jan D.
13 okt 2014 kl. 09:13 skrev Jim Radford <radford@blackbean.org>:
> I often cannot connect to "emacs --daemon" with emacsclient because
> instead of select()ing on the appropriate sockets it's stuck in [NSApp
> run] waiting for an event which will never come. Note at this time
> there are no Cocoa windows open (I don't use them) so no events will
> *ever* come (unless I, say, open and close the about box which triggers
> an escape from the hang). Here's the backtrace when this occurs.
>
> frame #9: 0x00007fff940cc89b AppKit`-[NSApplication
> nextEventMatchingMask:untilDate:inMode:dequeue:] + 122
> frame #10: 0x00000001001a659f Emacs`-[EmacsApp
> run](self=0x0000000100a26910, _cmd=<unavailable>) + 223 at nsterm.m:4494
> frame #11: 0x00000001001a5219 Emacs`ns_select(nfds=<unavailable>,
> readfds=0x00007fff5fbfea00, writefds=0x00007fff5fbfe980,
> exceptfds=<unavailable>, timeout=<unavailable>, sigmask=<unavailable>) + 809
> at nsterm.m:3748
> frame #12: 0x0000000100179811
> Emacs`wait_reading_process_output(time_limit=<unavailable>,
> nsecs=<unavailable>, read_kbd=-1, do_display=true, wait_for_cell=4328534074,
> wait_proc=0x0000000000000000, just_wait_proc=<unavailable>) + 2209 at
> process.c:4601
> frame #13: 0x00000001000c1ce4 Emacs`read_decoded_event_from_main_queue
> [inlined] kbd_buffer_get_event(kbp=<unavailable>,
> used_mouse_menu=<unavailable>, end_time=<unavailable>) + 807 at
> keyboard.c:3906
> frame #14: 0x00000001000c19bd Emacs`read_decoded_event_from_main_queue
> [inlined] read_event_from_main_queue(end_time=<unavailable>,
> local_getcjmp=<unavailable>) + 1569 at keyboard.c:2246
> frame #15: 0x00000001000c139c
> Emacs`read_decoded_event_from_main_queue(end_time=<unavailable>,
> local_getcjmp=<unavailable>, prev_event=<unavailable>,
> used_mouse_menu=<unavailable>) + 44 at keyboard.c:2310
> frame #16: 0x00000001000c021e Emacs`read_char(commandflag=1,
> map=4322429222, prev_event=4328534074, used_mouse_menu=0x00007fff5fbff1ff,
> end_time=0x0000000000000000) + 5918 at keyboard.c:2895
> frame #17: 0x00000001000bc9d3
> Emacs`read_key_sequence(bufsize=<unavailable>, keybuf=<unavailable>,
> prompt=<unavailable>, dont_downcase_last=<unavailable>,
> can_return_switch_frame=<unavailable>, fix_current_buffer=<unavailable>,
> prevent_redisplay=<unavailable>) + 1859 at keyboard.c:9088
> frame #18: 0x00000001000bc064 Emacs`command_loop_1 + 5188 at
> keyboard.c:1452
> frame #19: 0x000000010013714b
> Emacs`internal_condition_case(bfun=0x00000001000bac20,
> handlers=<unavailable>, hfun=<unavailable>) + 251 at eval.c:1354
> frame #20: 0x00000001000cc4ae Emacs`command_loop_2(ignore=<unavailable>) +
> 62 at keyboard.c:1177
> frame #21: 0x0000000100136ae3 Emacs`internal_catch(tag=<unavailable>,
> func=0x00000001000cc470, arg=4328534074) + 243 at eval.c:1118
> frame #22: 0x00000001000ba1ed Emacs`recursive_edit_1 [inlined]
> command_loop + 91 at keyboard.c:1156
> frame #23: 0x00000001000ba192 Emacs`recursive_edit_1 + 130 at
> keyboard.c:777
> frame #24: 0x00000001000ba39c Emacs`Frecursive_edit + 236 at keyboard.c:848
> frame #25: 0x00000001000b8fec Emacs`main(argc=0, argv=<unavailable>) +
> 5836 at emacs.c:1646
> frame #26: 0x00007fff928685fd libdyld.dylib`start + 1
>
> In GNU Emacs 24.3.93.2 (x86_64-apple-darwin13.3.0, NS apple-appkit-1265.21)
> of 2014-09-20
> Windowing system distributor `Apple', version 10.3.1265
> Configured using:
> `configure --prefix=/tmp/emacs --with-ns'
>
>