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Re: Solaris 5.8 version doesn't run anymore
From: |
Klaus Zeitler |
Subject: |
Re: Solaris 5.8 version doesn't run anymore |
Date: |
Wed, 11 Jun 2008 09:42:35 +0200 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.2 (usg-unix-v) |
Hello,
about 2 weeks ago I wrote about the following problem. I hope one of our
experts can give me a few hints how to track this down. I have no idea
when this problem was introduced since this was my first build for more than 3
months. Anybody else using CVS emacs on Solaris 5.8?
Thanks
Klaus
>>>>> "Klaus" == Klaus Zeitler <address@hidden> writes:
Klaus>
Klaus> Hello,
Klaus> the CVS version hangs at startup under Solaris 5.8.
Klaus> When I debug emacs, I see that emacs wont return from the select call
Klaus> in function wait_reading_process_output (line 4584).
Klaus> More exactly it will return after the timeout of 100000 seconds
(though
Klaus> that's a bit too long for me to wait).
Klaus> Here's a debug session:
Klaus>
Klaus> GNU gdb 6.5
Klaus> Copyright (C) 2006 Free Software Foundation, Inc.
Klaus> GDB is free software, covered by the GNU General Public License, and
you are
Klaus> welcome to change it and/or distribute copies of it under certain
conditions.
Klaus> Type "show copying" to see the conditions.
Klaus> There is absolutely no warranty for GDB. Type "show warranty" for
details.
Klaus> This GDB was configured as "sparc-sun-solaris2.8"...
Klaus> DISPLAY = sfsw51.de.lucent.com:0
Klaus> TERM = dumb
Klaus> Breakpoint 1 at 0x1993ac: file
/vol/freeware/cvs/emacs/head/emacs/src/emacs.c, line 427.
Klaus> Breakpoint 2 at 0x1cac08: file
/vol/freeware/cvs/emacs/head/emacs/src/sysdep.c, line 1322.
Klaus> (gdb) b wait_reading_process_output
Klaus> Breakpoint 3 at 0x2eadc8: file
/vol/freeware/cvs/emacs/head/emacs/src/process.c, line 4264.
Klaus> (gdb) R -Q
Klaus>
Klaus> Breakpoint 3, wait_reading_process_output (time_limit=0,
microsecs=0,
Klaus> read_kbd=-1, do_display=1, wait_for_cell=5142529, wait_proc=0x0,
Klaus> just_wait_proc=0) at
/vol/freeware/cvs/emacs/head/emacs/src/process.c:4264
Klaus> Breakpoint 4 at 0x2ebbf8: file
/vol/freeware/cvs/emacs/head/emacs/src/process.c, line 4584.
Klaus> (gdb) c
Klaus>
Klaus> Breakpoint 4, wait_reading_process_output (time_limit=0,
microsecs=0,
Klaus> read_kbd=-1, do_display=1, wait_for_cell=5142529, wait_proc=0x0,
Klaus> just_wait_proc=0) at
/vol/freeware/cvs/emacs/head/emacs/src/process.c:4584
Klaus> (gdb) p timeout
Klaus> $1 = {
Klaus> tv_sec = 100000,
Klaus> tv_usec = 0
Klaus> }
Klaus> (gdb) bt
Klaus> #0 wait_reading_process_output (time_limit=0, microsecs=0,
read_kbd=-1,
Klaus> do_display=1, wait_for_cell=5142529, wait_proc=0x0,
just_wait_proc=0)
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/process.c:4595
Klaus> #1 0x001a7a4c in kbd_buffer_get_event (kbp=0xffbedde0,
Klaus> used_mouse_menu=0xffbee03c, end_time=0x0)
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/keyboard.c:4087
Klaus> #2 0x001a479c in read_char (commandflag=1, nmaps=2,
maps=0xffbedf20,
Klaus> prev_event=5142529, used_mouse_menu=0xffbee03c, end_time=0x0)
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/keyboard.c:3041
Klaus> #3 0x001b4014 in read_key_sequence (keybuf=0xffbee1c0, bufsize=30,
Klaus> prompt=5142529, dont_downcase_last=0, can_return_switch_frame=1,
Klaus> fix_current_buffer=1)
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/keyboard.c:9443
Klaus> #4 0x0019f004 in command_loop_1 ()
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/keyboard.c:1651
Klaus> #5 0x002713f8 in internal_condition_case (bfun=0x19ea64
<command_loop_1>,
Klaus> handlers=5210281, hfun=0x19df58 <cmd_error>)
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/eval.c:1506
Klaus> #6 0x0019e570 in command_loop_2 ()
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/keyboard.c:1367
Klaus> #7 0x00270ba0 in internal_catch (tag=5206353,
Klaus> func=0x19e544 <command_loop_2>, arg=5142529)
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/eval.c:1242
Klaus> #8 0x0019e4ec in command_loop ()
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/keyboard.c:1346
Klaus> #9 0x0019d7e8 in recursive_edit_1 ()
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/keyboard.c:955
Klaus> #10 0x0019da9c in Frecursive_edit ()
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/keyboard.c:1017
Klaus> #11 0x0019b658 in main (argc=2, argv=0xffbee7a4)
Klaus> at /vol/freeware/cvs/emacs/head/emacs/src/emacs.c:1770
Klaus> (gdb)
Klaus>
Klaus>
Klaus> Just for fun I've changed the timeout initialization in line 4342
Klaus> EMACS_SET_SECS_USECS (timeout, 100000, 0);
Klaus> to
Klaus> EMACS_SET_SECS_USECS (timeout, 0, 100000);
Klaus>
Klaus> The select call will now return immediately, but that doesn't help
much,
Klaus> cause emacs doesn't seem to leave the big while loop in this function
Klaus> and tries the select call over and over again. See line 4749:
Klaus>
Klaus> if (no_avail || nfds == 0)
Klaus> continue;
Klaus>
Klaus>
Klaus> Unfortunately this function goes way over my had (for a quick glance
Klaus> anyway). Maybe we shouldn't get there in the first place?
--
--------------------------------------------------
| Klaus Zeitler Alcatel-Lucent |
| Email: address@hidden |
--------------------------------------------------
---
It is easier to get forgiveness than permission.
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