GNU bug report logs - #33135
27.0.50; (make-thread) TRAMP interactive freeze macOS 10.14

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From: Christian Johansson <christian <at> cvj.se>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 33135 <at> debbugs.gnu.org, Alan Third <alan <at> idiocy.org>
Subject: bug#33135: 27.0.50; (make-thread) TRAMP interactive freeze macOS 10.14
Date: Mon, 5 Nov 2018 16:39:40 +0100

Alright, I’ll see if I can get the error again. I only got it like 2 times in 8 hours so it’s not frequent.

I tried user-interaction via threaded ange-ftp  tramp on macOS and it seems to work on your branch. I will try it a bit more this week.

Regards
Christian

> 5 nov. 2018 kl. 14:49 skrev Michael Albinus <michael.albinus <at> gmx.de>:
> 
> Christian Johansson <christian <at> cvj.se> writes:
> 
>> Hi Michael
> 
> Hi Christian,
> 
>> I haven't experienced a single crash since I started using your
>> threaded tramp branch but I sometimes get errors like this, but it
>> doesn't make Emacs crash, I can just retry same operation and it will
>> work. It seems like sometimes a thread is busy and Emacs tries to
>> access it in some way and this error occurs, I have replaced sensitive
>> information with --- below
>> 
>> Debugger entered--Lisp error: (error "Attempt to accept output from
>> process *ftp ---...")
>>   accept-process-output(#<process *ftp ---@---*>)
>>   ange-ftp-wait-not-busy(#<process *ftp ---@---*>)
>>   ange-ftp-raw-send-cmd(#<process *ftp ---@---*> "type ascii" nil
>> (#f(compiled-function (result line host user cmd msg cont nowait)
>> #<bytecode 0x4ffee879>) "---" "---" "type ascii" nil nil nil) nil)
> 
> Looks like the ange-ftp process is not assigned to the proper thread. As
> said, ange-ftp is a special case, it wasn't handled yet.
> 
> I've pushed a fix to the feature/tramp-thread-safe branch; should work
> now. Could you pls retest?
> 
>> I haven't tried threaded tramp that requires user-interaction yet
>> though since I got ~/.authinfo.gpg working with ange-ftp, I'll see if
>> I can test that this week
> 
> Likely, this won't work. Nobody has provided a fix for this problem, yet.
> 
>> Regards
>> Christian
> 
> Best regards, Michael.

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