From: Dan Nicolaescu <dann@gnu.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: "Stephen J. Turnbull" <stephen@xemacs.org>, emacs-devel@gnu.org
Subject: Re: valgrind warnings [Re: Emacs bzr memory footprint]
Date: Fri, 28 Oct 2011 10:38:03 -0400 [thread overview]
Message-ID: <yxqobx1qj04.fsf@fencepost.gnu.org> (raw)
In-Reply-To: <yxqaa8ljpub.fsf_-_@fencepost.gnu.org> (Dan Nicolaescu's message of "Fri, 28 Oct 2011 07:52:12 -0400")
Dan Nicolaescu <dann@gnu.org> writes:
> valgrind ./temacs
>
> Valgrind produces these warnings, maybe some of them are interesting:
>
> ==30382== Conditional jump or move depends on uninitialised value(s)
> ==30382== at 0x4731E6: note_mouse_highlight (xdisp.c:26841)
> ==30382== by 0x4F8682: note_mouse_movement (xterm.c:3830)
> ==30382== by 0x4FCB2E: handle_one_xevent (xterm.c:6652)
> ==30382== by 0x4FD792: XTread_socket (xterm.c:7133)
> ==30382== by 0x5437F7: read_avail_input (keyboard.c:6821)
> ==30382== by 0x54409F: handle_async_input (keyboard.c:7149)
> ==30382== by 0x5440BE: process_pending_signals (keyboard.c:7165)
> ==30382== by 0x62D713: wait_reading_process_output (process.c:4340)
> ==30382== by 0x419ED2: sit_for (dispnew.c:5971)
> ==30382== by 0x53AF87: read_char (keyboard.c:2687)
> ==30382== by 0x548876: read_key_sequence (keyboard.c:9290)
> ==30382== by 0x538709: command_loop_1 (keyboard.c:1447)
This is because window_from_coordinates in note_mouse_highlight is
passed "&part", where "part" is an uninitialized local variable.
When !NILP(window) "part" is not touched, so it stays uninitialized.
Can someone who understands this code fix this please?
> ==30382== Conditional jump or move depends on uninitialised value(s)
> ==30382== at 0x46D785: x_write_glyphs (xdisp.c:24661)
> ==30382== by 0x413E4A: update_text_area (dispnew.c:3765)
> ==30382== by 0x414794: update_window_line (dispnew.c:4006)
> ==30382== by 0x413A1A: update_window (dispnew.c:3625)
> ==30382== by 0x413256: update_single_window (dispnew.c:3370)
> ==30382== by 0x511A93: Fx_show_tip (xfns.c:5189)
> ==30382== by 0x5D6E47: Ffuncall (eval.c:2995)
> ==30382== by 0x622C5B: exec_byte_code (bytecode.c:785)
> ==30382== by 0x6221C6: Fbyte_code (bytecode.c:423)
> ==30382== by 0x5D56AB: eval_sub (eval.c:2328)
> ==30382== by 0x5D381A: internal_lisp_condition_case (eval.c:1453)
> ==30382== by 0x62392A: exec_byte_code (bytecode.c:981)
I think I fixed this one.
next prev parent reply other threads:[~2011-10-28 14:38 UTC|newest]
Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-13 9:24 Emacs bzr memory footprint Carsten Mattner
2011-10-13 10:01 ` Eli Zaretskii
2011-10-13 10:33 ` Andreas Schwab
2011-10-13 10:46 ` Eli Zaretskii
2011-10-13 13:08 ` Carsten Mattner
2011-10-13 13:38 ` Eli Zaretskii
2011-10-13 15:22 ` Miles Bader
2011-10-13 15:30 ` Eli Zaretskii
2011-10-13 16:16 ` Stefan Monnier
2011-10-13 17:33 ` Dmitry Antipov
2011-10-13 18:42 ` Eli Zaretskii
2011-10-14 3:09 ` Dmitry Antipov
2011-10-13 16:46 ` Stephen J. Turnbull
2011-10-13 16:59 ` Carsten Mattner
2011-10-13 13:13 ` Carsten Mattner
2011-10-13 13:43 ` Eli Zaretskii
2011-10-13 14:10 ` Dave Abrahams
2011-10-13 14:46 ` Eli Zaretskii
2011-10-13 15:05 ` Dave Abrahams
2011-10-13 14:22 ` Stefan Monnier
2011-10-13 16:55 ` Carsten Mattner
2011-10-13 17:09 ` Stefan Monnier
2011-10-14 12:11 ` Carsten Mattner
2011-10-14 21:02 ` John Wiegley
2011-10-15 1:22 ` Stefan Monnier
2011-10-13 17:22 ` Richard Riley
2011-10-13 16:12 ` Chong Yidong
2011-10-13 20:18 ` chad
2011-10-14 12:13 ` Carsten Mattner
2011-10-14 12:18 ` Carsten Mattner
2011-10-14 15:49 ` Sven Joachim
2011-10-14 16:30 ` Ted Zlatanov
2011-10-14 16:48 ` Sven Joachim
2011-10-14 17:16 ` Carsten Mattner
2011-10-15 18:12 ` Sven Joachim
2011-10-20 13:35 ` Nix
2011-10-20 23:02 ` John Wiegley
2011-10-21 0:19 ` Nix
2011-10-21 8:19 ` Eli Zaretskii
2011-10-21 12:05 ` Nix
2011-10-21 12:36 ` Eli Zaretskii
2011-10-21 12:47 ` Nix
2011-10-21 14:30 ` Dmitry Antipov
2011-10-21 15:22 ` Nix
2011-10-21 18:29 ` Dmitry Antipov
2011-10-21 18:36 ` Nix
2011-10-21 13:30 ` Stefan Monnier
2011-10-21 15:02 ` Nix
2011-10-21 17:52 ` Stefan Monnier
2011-10-21 19:12 ` Nix
2011-10-21 15:34 ` Dmitry Antipov
2011-10-21 18:00 ` Stefan Monnier
2011-10-21 18:27 ` Óscar Fuentes
2011-10-21 18:58 ` Eli Zaretskii
2011-10-21 19:11 ` Nix
2011-10-21 20:18 ` Eli Zaretskii
2011-10-21 20:21 ` Nix
2011-10-22 7:34 ` Carsten Mattner
2011-10-22 8:30 ` Stephen J. Turnbull
2011-10-22 12:03 ` Carsten Mattner
2011-10-22 16:08 ` Stephen J. Turnbull
2011-10-27 22:10 ` Ted Zlatanov
2011-10-28 6:40 ` Eli Zaretskii
2011-10-28 9:34 ` Stephen J. Turnbull
2011-10-28 9:47 ` Eli Zaretskii
2011-10-28 10:22 ` Stephen J. Turnbull
2011-10-28 10:36 ` Eli Zaretskii
2011-10-28 11:52 ` valgrind warnings [Re: Emacs bzr memory footprint] Dan Nicolaescu
2011-10-28 14:08 ` Stephen J. Turnbull
2011-10-28 14:38 ` Dan Nicolaescu [this message]
2011-10-28 15:17 ` Chong Yidong
2011-10-28 15:35 ` Eli Zaretskii
2011-10-28 15:27 ` Eli Zaretskii
2011-10-28 16:34 ` Dan Nicolaescu
2011-10-28 18:36 ` Eli Zaretskii
2011-10-28 18:51 ` Eli Zaretskii
2011-10-28 18:52 ` Dan Nicolaescu
2011-10-28 19:03 ` Eli Zaretskii
2011-10-28 15:08 ` Ted Zlatanov
2011-12-04 21:11 ` Florian Weimer
2011-10-28 20:20 ` Dan Nicolaescu
2011-10-29 3:40 ` Chong Yidong
2011-10-29 7:04 ` Andreas Schwab
2011-10-29 16:25 ` Stefan Monnier
2011-11-04 12:51 ` Dan Nicolaescu
2011-11-04 13:08 ` Andreas Schwab
2011-11-04 15:50 ` valgrind warnings Paul Eggert
2011-11-04 17:37 ` valgrind warnings [Re: Emacs bzr memory footprint] Stefan Monnier
2011-11-04 19:10 ` Dan Nicolaescu
2011-11-04 20:56 ` Paul Eggert
2011-11-05 22:08 ` Dan Nicolaescu
2011-11-06 2:34 ` Paul Eggert
2011-11-06 12:37 ` Dan Nicolaescu
2011-11-07 1:13 ` Paul Eggert
2011-10-29 9:10 ` Eli Zaretskii
2011-10-22 8:44 ` Emacs bzr memory footprint Sven Joachim
2011-10-22 11:57 ` Carsten Mattner
2011-10-23 18:04 ` Stefan Monnier
2011-10-25 17:35 ` Nix
2011-10-25 20:23 ` Stefan Monnier
2011-10-25 20:34 ` Nix
2011-10-26 14:52 ` gnutls memory leak [Was: Re: Emacs bzr memory footprint] Chong Yidong
2011-10-27 6:10 ` Chong Yidong
2011-10-27 22:01 ` Ted Zlatanov
2011-10-28 12:04 ` Ted Zlatanov
2011-10-28 17:29 ` Nix
2011-10-27 22:03 ` Ted Zlatanov
2011-10-13 21:23 ` Emacs bzr memory footprint Dan Nicolaescu
2011-10-14 13:04 ` Carsten Mattner
2011-10-14 18:13 ` James Cloos
2011-10-17 20:52 ` Juri Linkov
2011-10-17 23:34 ` James Cloos
2011-10-18 7:24 ` Andreas Schwab
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