* bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited
@ 2021-03-19 2:20 Arunesh Pandey Gmail
2021-03-19 6:55 ` Eli Zaretskii
0 siblings, 1 reply; 7+ messages in thread
From: Arunesh Pandey Gmail @ 2021-03-19 2:20 UTC (permalink / raw)
To: 47254
---------
This is my first time submitting an Emacs bug. I apologize if I am not
following any set protocols.
I am using mu4e for email management in Emacs with mbsync to sync my
Mailbox from server. I have configured my `mu4e-update-interval` to 10
minutes to fetch any new emails from the server.
Official `mu4e` documentation says that its possible that the update
operation emits non-fatal warnings while the actual update still goes
through. That is what I am facing as well. I am seeing the following
message in my minibuffer:
```Buffer " *mu4e-update*" has a running process; kill it? (y or n) ```
However, every once in a while, this message *sticks* to the
minibuffer. Meaning, there is no way to get rid of it. When I try to
answer `y` or `n` to this question, I get the following error:
```process-kill-buffer-query-function: Selecting deleted buffer```
I think what is going on here is, `mu4e` is starting a new transient
buffer `*mu4e-update*` when it tries to fetch new email. Emacs (or some
other process) tries to kill this buffer _while_ the update process is
running, so Emacs shows the warning. Later, the update operation
succeeds, the process returns, the buffer is cleaned up, but the
minibuffer prompt asking for confirmation is never cleared up. There is
no way to clean it up as well. I do not see it in the `*Messages*`
buffer. There is no additional buffer in the output of C-x C-b.
I am not opening this as an `mu4e` bug because I think the problem here
is that Emacs does not clean up the question/prompt from the
minibuffer.
A cursory look on the Emacs bugs page didn't reveal any related bugs. Is
this a known issue? If folks would guide me, I can dig more into this
as well.
--------
In GNU Emacs 28.0.50 (build 1, x86_64-apple-darwin19.6.0, NS appkit-1894.60 Version 10.15.6 (Build 19G73))
of 2020-09-23 built on Aruneshs-MacBook-Pro.local
Repository revision: d6f11b54591657e1db64db9938316256dbf2fb4d
Repository branch: master
Windowing system distributor 'Apple', version 10.3.2022
System Description: macOS 11.2.3
Configured using:
'configure --with-ns --with-modules
'--enable-locallisppath=/Library/Application
Support/Emacs/${version}/site-lisp:/Library/Application
Support/Emacs/site-lisp' --with-xwidgets --with-nativecomp
--without-rsvg 'CFLAGS=-I/usr/local/opt/gcc/include -O2 -march=native'
'LDFLAGS=-L/usr/local/opt/gcc/lib/gcc/10
-L/usr/local/opt/gcc/lib/gcc/10/gcc/x86_64-apple-darwin19/10.2.0
-I/usr/local/opt/gcc/include''
Configured features:
JPEG TIFF GIF PNG NOTIFY KQUEUE ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS NS MODULES NATIVE_COMP THREADS XWIDGETS JSON PDUMPER
Important settings:
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix
Major mode: mu4e-headers
Minor modes in effect:
recentf-mode: t
doom-modeline-mode: t
counsel-mode: t
ivy-rich-mode: t
ivy-mode: t
treemacs-filewatch-mode: t
treemacs-follow-mode: t
treemacs-git-mode: deferred
treemacs-fringe-indicator-mode: t
projectile-mode: t
which-key-mode: t
global-display-line-numbers-mode: t
display-line-numbers-mode: t
display-battery-mode: t
show-paren-mode: t
global-hl-line-mode: t
hl-line-mode: t
display-time-mode: t
override-global-mode: t
tooltip-mode: t
global-eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
buffer-read-only: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
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Features:
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treemacs-follow-mode treemacs-rendering treemacs-async
treemacs-workspaces treemacs-dom treemacs-visuals
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treemacs-icons treemacs-themes treemacs-core-utils pfuture inline ht
treemacs-logging treemacs-customization treemacs-macros s all-the-icons
all-the-icons-faces data-material data-weathericons data-octicons
data-fileicons data-faicons data-alltheicons projectile grep compile
comint ansi-color ring ibuf-ext ibuffer ibuffer-loaddefs which-key
smartparens edmacro kmacro advice thingatpt dash display-line-numbers
format-spec battery dbus xml paren hl-line time modus-vivendi-theme
modus-operandi-theme modus-themes delight
use-package-ensure-system-package system-packages exec-path-from-shell
cl-extra help-mode use-package use-package-ensure use-package-delight
use-package-diminish use-package-bind-key bind-key easy-mmode
use-package-core info package easymenu browse-url url-handlers url-parse
auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs
password-cache json subr-x map url-vars seq byte-opt gv bytecomp
byte-compile cconv cl-loaddefs cl-lib tooltip eldoc electric uniquify
ediff-hook vc-hooks lisp-float-type mwheel term/ns-win ns-win
ucs-normalize mule-util term/common-win tool-bar dnd fontset image
regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode
lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch
timer select scroll-bar mouse jit-lock font-lock syntax facemenu
font-core term/tty-colors frame minibuffer cl-generic cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese composite charscript charprop
case-table epa-hook jka-cmpr-hook help simple abbrev obarray
cl-preloaded nadvice button loaddefs faces cus-face pcase macroexp files
window text-properties overlay sha1 md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote threads
xwidget-internal kqueue cocoa ns multi-tty make-network-process emacs)
Memory information:
((conses 16 626590 40494)
(symbols 48 37436 0)
(strings 32 143016 5877)
(string-bytes 1 6451992)
(vectors 16 60605)
(vector-slots 8 1811016 78114)
(floats 8 1271 962)
(intervals 56 10725 1867)
(buffers 992 28))
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited
2021-03-19 2:20 bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited Arunesh Pandey Gmail
@ 2021-03-19 6:55 ` Eli Zaretskii
2021-03-19 17:33 ` Arunesh Pandey Gmail
0 siblings, 1 reply; 7+ messages in thread
From: Eli Zaretskii @ 2021-03-19 6:55 UTC (permalink / raw)
To: Arunesh Pandey Gmail; +Cc: 47254
> From: Arunesh Pandey Gmail <aruneshpa@gmail.com>
> Date: Thu, 18 Mar 2021 19:20:31 -0700
>
> However, every once in a while, this message *sticks* to the
> minibuffer. Meaning, there is no way to get rid of it. When I try to
> answer `y` or `n` to this question, I get the following error:
>
> ```process-kill-buffer-query-function: Selecting deleted buffer```
When this happens, not even C-g or C-] help?
> I think what is going on here is, `mu4e` is starting a new transient
> buffer `*mu4e-update*` when it tries to fetch new email. Emacs (or some
> other process) tries to kill this buffer _while_ the update process is
> running, so Emacs shows the warning. Later, the update operation
> succeeds, the process returns, the buffer is cleaned up, but the
> minibuffer prompt asking for confirmation is never cleared up. There is
> no way to clean it up as well. I do not see it in the `*Messages*`
> buffer. There is no additional buffer in the output of C-x C-b.
Are you able to select the minibuffer, e.g. with "C-x o" one or more
times, or by clicking the mouse inside the mini-window? If you do
succeed to enter the minibuffer, can you _then_ get rid of the prompt
by either answering y/n or by C-g or C-] ?
Thanks.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited
2021-03-19 6:55 ` Eli Zaretskii
@ 2021-03-19 17:33 ` Arunesh Pandey Gmail
2021-03-19 19:41 ` Eli Zaretskii
0 siblings, 1 reply; 7+ messages in thread
From: Arunesh Pandey Gmail @ 2021-03-19 17:33 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 47254
> When this happens, not even C-g or C-] help?
No. Nothing helps at this point. Pressing C-g or C-] give me the
same error:
``` process-kill-buffer-query-function: Selecting deleted buffer
```
I am assuming because its trying to operate on a deleted buffer
(*mu4e-update*).
> Are you able to select the minibuffer, e.g. with "C-x o" one or
> more
> times, or by clicking the mouse inside the mini-window? If you
> do
> succeed to enter the minibuffer, can you _then_ get rid of the
> prompt
> by either answering y/n or by C-g or C-] ?
Yes. I am able to select the buffer by using M-o (bound to
ace-window) or by clicking.
And no, I cannot get rid of the buffer, because my answers are not
accepted.
When I press 'y' or 'n', I get the same "deleted buffer"
error. The
minibuffer is updated when the next sync is triggered.
One thing that I think is worth mentioning is, I see this only
when my
Emacs is idle for a while. If I am actively using it, I do not see
this issue.
Eli Zaretskii writes:
>> From: Arunesh Pandey Gmail <aruneshpa@gmail.com>
>> Date: Thu, 18 Mar 2021 19:20:31 -0700
>>
>> However, every once in a while, this message *sticks* to the
>> minibuffer. Meaning, there is no way to get rid of it. When I
>> try to
>> answer `y` or `n` to this question, I get the following error:
>>
>> ```process-kill-buffer-query-function: Selecting deleted
>> buffer```
>
> When this happens, not even C-g or C-] help?
>
>> I think what is going on here is, `mu4e` is starting a new
>> transient
>> buffer `*mu4e-update*` when it tries to fetch new email. Emacs
>> (or some
>> other process) tries to kill this buffer _while_ the update
>> process is
>> running, so Emacs shows the warning. Later, the update
>> operation
>> succeeds, the process returns, the buffer is cleaned up, but
>> the
>> minibuffer prompt asking for confirmation is never cleared
>> up. There is
>> no way to clean it up as well. I do not see it in the
>> `*Messages*`
>> buffer. There is no additional buffer in the output of C-x C-b.
>
> Are you able to select the minibuffer, e.g. with "C-x o" one or
> more
> times, or by clicking the mouse inside the mini-window? If you
> do
> succeed to enter the minibuffer, can you _then_ get rid of the
> prompt
> by either answering y/n or by C-g or C-] ?
>
> Thanks.
--
Best Regards,
Arunesh
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited
2021-03-19 17:33 ` Arunesh Pandey Gmail
@ 2021-03-19 19:41 ` Eli Zaretskii
2021-03-19 21:20 ` Arunesh Pandey Gmail
0 siblings, 1 reply; 7+ messages in thread
From: Eli Zaretskii @ 2021-03-19 19:41 UTC (permalink / raw)
To: Arunesh Pandey Gmail; +Cc: 47254
> From: Arunesh Pandey Gmail <aruneshpa@gmail.com>
> Cc: 47254@debbugs.gnu.org
> Date: Fri, 19 Mar 2021 10:33:52 -0700
>
>
> > When this happens, not even C-g or C-] help?
> No. Nothing helps at this point. Pressing C-g or C-] give me the
> same error:
> ``` process-kill-buffer-query-function: Selecting deleted buffer
> ```
> I am assuming because its trying to operate on a deleted buffer
> (*mu4e-update*).
Then I guess the way forward is to show a backtrace from this
situation. Unfortunately, you are on macOS, which makes this
non-trivial (unless you have a working GDB).
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited
2021-03-19 19:41 ` Eli Zaretskii
@ 2021-03-19 21:20 ` Arunesh Pandey Gmail
2021-03-20 7:16 ` Eli Zaretskii
0 siblings, 1 reply; 7+ messages in thread
From: Arunesh Pandey Gmail @ 2021-03-19 21:20 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 47254
I have GNU gdb 8.2.1 installed and running. How do I generate the
backtrace? Is there a page/document describing the process?
Eli Zaretskii writes:
>> From: Arunesh Pandey Gmail <aruneshpa@gmail.com>
>> Cc: 47254@debbugs.gnu.org
>> Date: Fri, 19 Mar 2021 10:33:52 -0700
>>
>>
>> > When this happens, not even C-g or C-] help?
>> No. Nothing helps at this point. Pressing C-g or C-] give me
>> the
>> same error:
>> ``` process-kill-buffer-query-function: Selecting deleted
>> buffer
>> ```
>> I am assuming because its trying to operate on a deleted buffer
>> (*mu4e-update*).
>
> Then I guess the way forward is to show a backtrace from this
> situation. Unfortunately, you are on macOS, which makes this
> non-trivial (unless you have a working GDB).
--
Best Regards,
Arunesh
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited
2021-03-19 21:20 ` Arunesh Pandey Gmail
@ 2021-03-20 7:16 ` Eli Zaretskii
2021-05-12 18:58 ` Lars Ingebrigtsen
0 siblings, 1 reply; 7+ messages in thread
From: Eli Zaretskii @ 2021-03-20 7:16 UTC (permalink / raw)
To: Arunesh Pandey Gmail; +Cc: 47254
> From: Arunesh Pandey Gmail <aruneshpa@gmail.com>
> Cc: 47254@debbugs.gnu.org
> Date: Fri, 19 Mar 2021 14:20:11 -0700
>
> I have GNU gdb 8.2.1 installed and running. How do I generate the
> backtrace?
After you get into this weird situation, do this:
gdb -p PID
...
(gdb) source /path/to/emacs/src/.gdbinit
(gdb) thread apply all bt
(where PID is the process ID of the Emacs process).
> Is there a page/document describing the process?
The information is in etc/DEBUG.
Thanks.
^ permalink raw reply [flat|nested] 7+ messages in thread
* bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited
2021-03-20 7:16 ` Eli Zaretskii
@ 2021-05-12 18:58 ` Lars Ingebrigtsen
0 siblings, 0 replies; 7+ messages in thread
From: Lars Ingebrigtsen @ 2021-05-12 18:58 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: Arunesh Pandey Gmail, 47254
Eli Zaretskii <eliz@gnu.org> writes:
> After you get into this weird situation, do this:
>
> gdb -p PID
> ...
> (gdb) source /path/to/emacs/src/.gdbinit
> (gdb) thread apply all bt
>
> (where PID is the process ID of the Emacs process).
More information was requested, but no response was given within a
month, so I'm closing this bug report. If the problem still exists,
please respond to this email and we'll reopen the bug report.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-05-12 18:58 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-03-19 2:20 bug#47254: 28.0.50; Minibuffer does not clear question even after the corresponding process has exited Arunesh Pandey Gmail
2021-03-19 6:55 ` Eli Zaretskii
2021-03-19 17:33 ` Arunesh Pandey Gmail
2021-03-19 19:41 ` Eli Zaretskii
2021-03-19 21:20 ` Arunesh Pandey Gmail
2021-03-20 7:16 ` Eli Zaretskii
2021-05-12 18:58 ` Lars Ingebrigtsen
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