* bug#34529: C-x b became unusable (ido, recentf, tramp)
@ 2019-02-18 16:58 Felicián Németh
2019-02-19 7:42 ` Michael Albinus
0 siblings, 1 reply; 5+ messages in thread
From: Felicián Németh @ 2019-02-18 16:58 UTC (permalink / raw)
To: 34529
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I had a problem, which can be reproduced to some extent with the
following snippet. (emacs -Q -l /tmp/bug.el)
(require 'recentf)
(setq recentf-save-file "/tmp/bug-recentf")
(setq recentf-list '("/ssh:localhost#2222:~/a.txt"))
(setq ido-use-virtual-buffers t)
(setq ido-save-directory-list-file "/tmp/bug-ido.last")
(recentf-save-list)
(ido-mode t)
(ido-switch-buffer) ; Simulating C-x b
However, that doesn't explain how that entry ended up in my
recentf-save-file. I'm guessing I opened many tramp files in a
virtual machine, and after I had halted the virtual machine,
emacs wanted to convert the file names to absolute paths.
Strangely,
(get-file-buffer "/ssh:localhost#2222:~/a.txt") and
(expand-file-name "/ssh:localhost#2222:~/a.txt") fail, but
evaluating them the second time, they succeed, but
expand-file-name returns a wrong value, i.e,
(expand-file-name "/ssh:localhost#2222:~/a.txt")
=> error
(expand-file-name "/ssh:localhost#2222:~/a.txt")
=> "/ssh:localhost#2222:~/a.txt"
"emacs -Q -l /tmp/bug.el" reproduces the problem with version
25.1.1 and a recent 27.0.50 as well, but I think it was former
who originally wrote the problematic entry into the
recent-save-file.
Thank you.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#34529: C-x b became unusable (ido, recentf, tramp)
2019-02-18 16:58 bug#34529: C-x b became unusable (ido, recentf, tramp) Felicián Németh
@ 2019-02-19 7:42 ` Michael Albinus
2019-02-20 7:34 ` Felicián Németh
0 siblings, 1 reply; 5+ messages in thread
From: Michael Albinus @ 2019-02-19 7:42 UTC (permalink / raw)
To: Felicián Németh; +Cc: 34529
Felicián Németh <felician.nemeth@gmail.com> writes:
Hi Felicián,
> However, that doesn't explain how that entry ended up in my
> recentf-save-file. I'm guessing I opened many tramp files in a
> virtual machine, and after I had halted the virtual machine,
> emacs wanted to convert the file names to absolute paths.
Do you use ad-hoc multi-hop file names?
> Thank you.
Best regards, Michael.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#34529: C-x b became unusable (ido, recentf, tramp)
2019-02-19 7:42 ` Michael Albinus
@ 2019-02-20 7:34 ` Felicián Németh
2019-02-20 9:40 ` Michael Albinus
0 siblings, 1 reply; 5+ messages in thread
From: Felicián Németh @ 2019-02-20 7:34 UTC (permalink / raw)
To: Michael Albinus; +Cc: 34529
Hi Michael,
>> However, that doesn't explain how that entry ended up in my
>> recentf-save-file. I'm guessing I opened many tramp files in a
>> virtual machine, and after I had halted the virtual machine,
>> emacs wanted to convert the file names to absolute paths.
>
> Do you use ad-hoc multi-hop file names?
With this virtual machine, definitely not. However, the problem occurred
in a long lasting emacs session and I do remember trying to ssh|su
into a remote system. It wasn't successful because (I think) tramp
failed to find the password prompt because of an unfortunate locale
setting.
However, I found a probable cause of evenets that inserts a wrong entry
into recentf-list:
bug.el:
(require 'recentf)
(setq recentf-save-file "/tmp/bug2-recentf")
(setq ido-use-virtual-buffers t)
(setq ido-save-directory-list-file "/tmp/bug-ido.last")
(ido-mode t)
(ffap-bindings)
0. emacs -Q -l bug.el
1. Open a relative file in a VM (/ssh:localhost#2222:~/a.txt)
2. Close the file, halt the VM.
3. (Accidentally) open the same file from the file-name-history.
(C-x C-f M-p)
4. Close emacs.
=> /tmp/bug2-recentf has the relative path.
Thanks again,
Felicián
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#34529: C-x b became unusable (ido, recentf, tramp)
2019-02-20 7:34 ` Felicián Németh
@ 2019-02-20 9:40 ` Michael Albinus
2019-02-21 8:12 ` Felicián Németh
0 siblings, 1 reply; 5+ messages in thread
From: Michael Albinus @ 2019-02-20 9:40 UTC (permalink / raw)
To: Felicián Németh; +Cc: 34529
Felicián Németh <felician.nemeth@gmail.com> writes:
> Hi Michael,
Hi Felicián,
> However, the problem occurred in a long lasting emacs session and I do
> remember trying to ssh|su into a remote system. It wasn't successful
> because (I think) tramp failed to find the password prompt because of
> an unfortunate locale setting.
>
> However, I found a probable cause of evenets that inserts a wrong entry
> into recentf-list:
> bug.el:
> (require 'recentf)
> (setq recentf-save-file "/tmp/bug2-recentf")
> (setq ido-use-virtual-buffers t)
> (setq ido-save-directory-list-file "/tmp/bug-ido.last")
> (ido-mode t)
> (ffap-bindings)
> 0. emacs -Q -l bug.el
> 1. Open a relative file in a VM (/ssh:localhost#2222:~/a.txt)
> 2. Close the file, halt the VM.
> 3. (Accidentally) open the same file from the file-name-history.
> (C-x C-f M-p)
> 4. Close emacs.
> => /tmp/bug2-recentf has the relative path.
This doesn't sound like an error. recentf does what you tell it to
do. After step 3, there is a buffer with the remote file name
"/ssh:localhost#2222:~/a.txt". recentf stores also remote file names,
according to `recentf-keep-default-predicate':
--8<---------------cut here---------------start------------->8---
(cond
((file-remote-p file nil t) (file-readable-p file))
((file-remote-p file))
((file-readable-p file))))
--8<---------------cut here---------------end--------------->8---
The problem seems to be rather ido. Could you pls check bug#24980? It
sounds similar to your problem, and it was solved in Emacs 26.1. Btw,
which Emacs version are you running?
> Thanks again,
> Felicián
Best regards, Michael.
^ permalink raw reply [flat|nested] 5+ messages in thread
* bug#34529: C-x b became unusable (ido, recentf, tramp)
2019-02-20 9:40 ` Michael Albinus
@ 2019-02-21 8:12 ` Felicián Németh
0 siblings, 0 replies; 5+ messages in thread
From: Felicián Németh @ 2019-02-21 8:12 UTC (permalink / raw)
To: Michael Albinus; +Cc: 34529-done
Hi Michael,
> The problem seems to be rather ido. Could you pls check bug#24980? It
> sounds similar to your problem, and it was solved in Emacs 26.1. Btw,
> which Emacs version are you running?
I bumped into the problem with Emacs 25.1, but I verified git head
misbehaves with the part of the problem that I understood in my original
report. However, I forgot to check my recipe to insert a relative path
into recentf-save-file is still valid for the latest Emacs. It is not,
so I close this report.
Sorry for wasting your time,
Felicián
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-02-21 8:12 UTC | newest]
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2019-02-18 16:58 bug#34529: C-x b became unusable (ido, recentf, tramp) Felicián Németh
2019-02-19 7:42 ` Michael Albinus
2019-02-20 7:34 ` Felicián Németh
2019-02-20 9:40 ` Michael Albinus
2019-02-21 8:12 ` Felicián Németh
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