GNU bug report logs - #79367
31.0.50; magit-commit sometimes doesn't work if diff-hl-update-async is t

Previous Next

Full log

View this message in rfc822 format

From: Zhengyi Fu <i <at> fuzy.me>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: sbaugh <at> janestreet.com, 79367 <at> debbugs.gnu.org, dmitry <at> gutov.dev
Subject: bug#79367: 31.0.50; magit-commit sometimes doesn't work if diff-hl-update-async is t
Date: Wed, 03 Sep 2025 22:57:50 +0800

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Zhengyi Fu <i <at> fuzy.me>
>> Cc: sbaugh <at> janestreet.com,  dmitry <at> gutov.dev,  79367 <at> debbugs.gnu.org
>> Date: Wed, 03 Sep 2025 22:42:26 +0800
>> 
>> Eli Zaretskii <eliz <at> gnu.org> writes:
>> 
>> > Zhengyi Fu, can you please apply it to the current master, and see if
>> > it solves the original problem?
>> 
>> It does resolve my original problem.
>
> Thanks for testing.
>
>> But I think we need to call set_proc_thread when the server process
>> is not locked as well.  Otherwise the `thread' member of the
>> fd_callback_info may still be a dangling pointer.
>
> Oh, you mean the below?  I agree, it is safer.
>
> diff --git a/src/process.c b/src/process.c
> index d6efac5..2cfff61 100644
> --- a/src/process.c
> +++ b/src/process.c
> @@ -5078,6 +5078,10 @@ server_accept_connection (Lisp_Object server, int channel)
>    fcntl (s, F_SETFL, O_NONBLOCK);
>  
>    p = XPROCESS (proc);
> +  /* make_process calls pset_thread, but if the server process is not
> +     locked to any thread, we need to undo what make_process did.  */
> +  if (NILP (ps->thread))
> +    pset_thread (p, Qnil);
>  
>    /* Build new contact information for this setup.  */
>    contact = Fcopy_sequence (ps->childp);
> @@ -5117,6 +5121,16 @@ server_accept_connection (Lisp_Object server, int channel)
>      add_process_read_fd (s);
>    if (s > max_desc)
>      max_desc = s;
> +  /* If the server process is locked to this thread, lock the client
> +     process to the same thread, otherwise clear the thread of its I/O
> +     descriptors.  */
> +  if (NILP (ps->thread))
> +    set_proc_thread (p, NULL);
> +  else
> +    {
> +      eassert (XTHREAD (ps->thread) == current_thread);
> +      set_proc_thread (p, XTHREAD (ps->thread));
> +    }
>  
>    /* Setup coding system for new process based on server process.
>       This seems to be the proper thing to do, as the coding system

Yes.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.