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From: Pedro Alves <pedro@palves.net>
To: Simon Marchi <simon.marchi@polymtl.ca>, gdb-patches@sourceware.org
Subject: Re: [PATCH 04/12] Fix a couple vStopped pending ack bugs
Date: Wed, 3 Feb 2021 01:25:15 +0000	[thread overview]
Message-ID: <a08b6946-2098-23e0-eb12-8318cf940b00@palves.net> (raw)
In-Reply-To: <fae327d2-d43f-66b2-426a-96d5f44fb774@polymtl.ca>

On 13/01/21 05:29, Simon Marchi wrote:
> On 2021-01-12 8:15 p.m., Pedro Alves wrote:

> Just to be sure I understand does that sum it up?
> 
> 1. GDBserver sends stop notification about thread X, the remote target
>    receives it and stores it
> 2. At the same time, GDB detaches thread X's inferior
> 3. The remote target discards the received stop notification
> 4. GDBserver waits forever for the ack

Yup.  Thanks for that summary.  I've borrowed it and put it in the commit log.

> Since the first item in the list has a special status (it is the in
> flight one), perhaps having a separate field in notif_server for it
> would make things clearer.
> 
> I mean having an additional
> 
>   notif_event *in_flight;
> 
> field in there.  When sending a notification, it gets dequeu-ed from
> the queue and put there.

It's likely yes, though I'd prefer that was done separately, as it has
risk of messing up something else.

> 
> Either way, this LGTM.

Thanks.  I've merged it.

  reply	other threads:[~2021-02-03  1:25 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-13  1:15 [PATCH 00/12] Fix detach + displaced-step regression + N bugs more Pedro Alves
2021-01-13  1:15 ` [PATCH 01/12] Fix attaching in non-stop mode Pedro Alves
2021-01-13  3:11   ` Simon Marchi
2021-02-03  1:21     ` Pedro Alves
2021-01-13  1:15 ` [PATCH 02/12] Fix "target extended-remote" + "maint set target-non-stop" + "attach" Pedro Alves
2021-01-13  5:01   ` Simon Marchi
2021-01-13  1:15 ` [PATCH 03/12] Testcase for attaching in non-stop mode Pedro Alves
2021-01-13  5:09   ` Simon Marchi
2021-02-03  1:23     ` Pedro Alves
2021-01-13  1:15 ` [PATCH 04/12] Fix a couple vStopped pending ack bugs Pedro Alves
2021-01-13  5:29   ` Simon Marchi
2021-02-03  1:25     ` Pedro Alves [this message]
2021-01-13  1:15 ` [PATCH 05/12] gdbserver: spurious SIGTRAP w/ detach while step-over in progress Pedro Alves
2021-01-13  6:00   ` Simon Marchi
2021-02-03  1:26     ` Pedro Alves
2021-01-13  1:15 ` [PATCH 06/12] Factor out after-stop event handling code from stop_all_threads Pedro Alves
2021-01-13  6:06   ` Simon Marchi
2021-02-03  1:26     ` Pedro Alves
2021-01-13  1:15 ` [PATCH 07/12] prepare_for_detach: don't release scoped_restore at the end Pedro Alves
2021-01-13  6:08   ` Simon Marchi
2021-02-03  1:27     ` Pedro Alves
2021-01-13  1:15 ` [PATCH 08/12] prepare_for_detach and ongoing displaced stepping Pedro Alves
2021-01-13  6:23   ` Simon Marchi
2021-01-13  1:15 ` [PATCH 09/12] detach and breakpoint removal Pedro Alves
2021-01-13  6:32   ` Simon Marchi
2021-02-03  1:28     ` Pedro Alves
2021-01-13  1:15 ` [PATCH 10/12] detach with in-line step over in progress Pedro Alves
2021-01-13  6:39   ` Simon Marchi
2021-01-13  1:15 ` [PATCH 11/12] detach in all-stop with threads running Pedro Alves
2021-01-13  6:55   ` Simon Marchi
2021-02-03  1:31     ` Pedro Alves
2021-07-12 15:36   ` Jonah Graham
2021-07-12 19:36     ` Pedro Alves
2021-01-13  1:15 ` [PATCH 12/12] Testcase for detaching while stepping over breakpoint Pedro Alves
2021-01-13  7:05   ` Simon Marchi
2021-02-03  1:33     ` Pedro Alves

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