GNU bug report logs - #55832
28.1; Emacs crashes when using tramp from helm in emacs-29

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From: Thierry Volpiatto <thievol <at> posteo.net>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: Eli Zaretskii <eliz <at> gnu.org>, larsi <at> gnus.org, 55832 <at> debbugs.gnu.org
Subject: bug#55832: 28.1; Emacs crashes when using tramp from helm in emacs-29
Date: Tue, 14 Jun 2022 11:36:38 +0000

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Michael Albinus <michael.albinus <at> gmx.de> writes:

> Thierry Volpiatto <thievol <at> posteo.net> writes:
>
> Hi Thierry,
>
> sorry for the delay, I've been occupied by other duties last days.
>
>>>>> (setq tramp-verbose 10 tramp-debug-to-file t)
>>>>
>>>> Ah nice, with those setting instead of crashing emacs hang and I can
>>>> recuperate with C-g, here the tramp log:
>>>>
>>>> https://gist.github.com/thierryvolpiatto/96b5d3bacc92deac1fad275eede69354
>>>
>>> Thanks. The trace looks surprising, again and again
>>>
>>> 21:38:47.713417 tramp-get-remote-id (5) # Finding POSIX `id' command
>>>
>>> I'll try to analyze tomorrow what could have triggered this behavior. If
>>> not successful, I'll ask you for instrumentation of Tramp.
>>
>> Thanks.
>
> Finally,  I could reproduce the problem with the following code snippet:
>
> (progn
>   (tramp-cleanup-all-connections)
>   (let ((non-essential t))
>     (tramp-get-remote-uid (tramp-dissect-file-name "/sudo::") 'string)))
>
> I've pushed a fix to master, could you please check?

Did two or three tries without crashing :-) seems fixed.

Thanks Michael and Eli for gdb lesson ;-).

-- 
Thierry

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