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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Andrea Corallo <akrl@sdf.org>
Cc: 41321@debbugs.gnu.org, Pip Cet <pipcet@gmail.com>
Subject: bug#41321: 27.0.91; Emacs aborts due to invalid pseudovector objects
Date: Sat, 23 May 2020 18:37:57 -0400	[thread overview]
Message-ID: <jwvh7w6jn4j.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <xjfblmev8hw.fsf@sdf.org> (Andrea Corallo's message of "Sat, 23 May 2020 17:58:19 +0000")

>> If I'm reading this correctly, it's of some concern for wide-int
>> builds: the two 32-bit halves of a Lisp_Object are stored
>> non-consecutively.

This shouldn't be a problem: wide-int builds use MSB tagging, so all
Lisp_Objects which contain a pointer have their lowest 32bits exactly
identical to that pointer (and the higher 32bits just contain the tag).
So we'll find them in the stack even if the two halves are separate
simply because the pointer-part will be found like any other pointer.


        Stefan






  reply	other threads:[~2020-05-23 22:37 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-16 10:33 bug#41321: 27.0.91; Emacs aborts due to invalid pseudovector objects Eli Zaretskii
2020-05-16 16:33 ` Paul Eggert
2020-05-16 16:47   ` Eli Zaretskii
2020-05-17 10:56 ` Pip Cet
2020-05-17 15:28   ` Eli Zaretskii
2020-05-17 15:57     ` Eli Zaretskii
2020-05-22  7:22       ` Eli Zaretskii
2020-05-22  8:35         ` Andrea Corallo
2020-05-22 11:04           ` Eli Zaretskii
2020-05-22 12:55             ` Andrea Corallo
2020-05-22 10:54         ` Eli Zaretskii
2020-05-22 11:47         ` Pip Cet
2020-05-22 12:13           ` Eli Zaretskii
2020-05-22 12:39             ` Pip Cet
2020-05-22 12:48               ` Eli Zaretskii
2020-05-22 14:04                 ` Pip Cet
2020-05-22 14:26                   ` Eli Zaretskii
2020-05-22 14:40                     ` Andrea Corallo
2020-05-22 19:03                       ` Eli Zaretskii
     [not found]                         ` <CAOqdjBdpU4U1NqErNH0idBmUxNeE3fL=2=KKpo9kbCM3DhW5gA@mail.gmail.com>
2020-05-23 17:58                           ` Andrea Corallo
2020-05-23 22:37                             ` Stefan Monnier [this message]
2020-05-23 22:41                               ` Pip Cet
2020-05-23 23:26                                 ` Stefan Monnier
2020-05-22 12:32           ` Eli Zaretskii
2020-05-29  9:51           ` Eli Zaretskii
2020-05-29 10:00             ` Pip Cet
2020-05-23 23:54         ` Pip Cet
2020-05-24 14:24           ` Eli Zaretskii
2020-05-24 15:00             ` Pip Cet
2020-05-24 16:25               ` Eli Zaretskii
2020-05-24 16:55                 ` Eli Zaretskii
2020-05-24 18:03                   ` Pip Cet
2020-05-24 18:40                     ` Eli Zaretskii
2020-05-24 19:40                       ` Pip Cet
2020-05-25  2:30                         ` Eli Zaretskii
2020-05-25  6:40                           ` Pip Cet
2020-05-25 11:28                             ` Pip Cet
2020-05-25 14:53                               ` Eli Zaretskii
2020-05-25 15:12                                 ` Stefan Monnier
2020-05-26  3:39                                 ` Paul Eggert
2020-05-26  3:33                               ` Paul Eggert
2020-05-26  6:18                                 ` Pip Cet
2020-05-26  7:51                                   ` Paul Eggert
2020-05-26  8:27                                     ` Pip Cet
2020-05-26  6:46                                 ` Paul Eggert
2020-05-26 15:17                                   ` Eli Zaretskii
2020-05-26 22:49                                     ` Paul Eggert
2020-05-27 15:26                                       ` Eli Zaretskii
2020-05-27 16:58                                         ` Paul Eggert
2020-05-27 17:33                                           ` Eli Zaretskii
2020-05-27 17:53                                             ` Paul Eggert
2020-05-27 18:24                                               ` Eli Zaretskii
2020-05-27 18:39                                                 ` Paul Eggert
2020-05-28  2:43                                               ` Stefan Monnier
2020-05-28  7:27                                                 ` Eli Zaretskii
2020-05-28  7:41                                                   ` Paul Eggert
2020-05-28 13:30                                                     ` Stefan Monnier
2020-05-28 14:28                                                       ` Pip Cet
2020-05-28 16:24                                                         ` Stefan Monnier
2020-05-29  9:43                                                         ` Pip Cet
2020-05-29 18:31                                                           ` Paul Eggert
2020-05-29 18:37                                                             ` Pip Cet
2020-05-29 19:32                                                               ` Paul Eggert
2020-05-29 19:37                                                                 ` Pip Cet
2020-05-29 20:26                                                                 ` Stefan Monnier
2020-05-29 20:40                                                                   ` Paul Eggert
2020-05-30  5:54                                                                     ` Eli Zaretskii
2020-05-30 17:52                                                                       ` Paul Eggert
2020-05-30 18:11                                                                         ` Eli Zaretskii
2020-05-30 18:17                                                                           ` Paul Eggert
2020-05-30  5:51                                                                   ` Eli Zaretskii
2020-05-30 14:26                                                                     ` Stefan Monnier
2020-05-27 17:57                                           ` Pip Cet
2020-05-27 18:39                                             ` Paul Eggert
2020-05-27 18:56                                               ` Pip Cet
2020-05-28  1:21                                                 ` Paul Eggert
2020-05-28  6:31                                                   ` Pip Cet
2020-05-28  7:47                                                     ` Paul Eggert
2020-05-28  8:11                                                       ` Pip Cet
2020-05-28 18:27                                           ` Eli Zaretskii
2020-05-28 19:33                                             ` Paul Eggert
2020-05-29  6:19                                               ` Eli Zaretskii
2020-05-29 20:24                                                 ` Paul Eggert
2020-05-29 21:01                                                   ` Pip Cet
2020-05-30  5:58                                                     ` Eli Zaretskii
2020-05-30  7:19                                                       ` Pip Cet
2020-05-30  9:08                                                         ` Eli Zaretskii
2020-05-30 11:06                                                           ` Pip Cet
2020-05-30 11:31                                                             ` Eli Zaretskii
2020-05-30 13:29                                                               ` Pip Cet
2020-05-30 16:32                                                                 ` Eli Zaretskii
2020-05-30 16:36                                                                   ` Pip Cet
2020-05-30 16:45                                                                     ` Eli Zaretskii
2020-05-30 18:04                                                                 ` Paul Eggert
2020-05-30 18:12                                                                   ` Pip Cet
2020-05-30 18:16                                                                   ` Eli Zaretskii
2020-05-30 18:45                                                                     ` Paul Eggert
2020-05-30 18:39                                                                   ` Pip Cet
2020-05-30 18:57                                                                     ` Paul Eggert
2020-05-30 19:06                                                                       ` Pip Cet
2020-05-30 21:27                                                                         ` Paul Eggert
2020-05-30 21:49                                                                           ` Pip Cet
2020-05-30 22:23                                                                             ` Paul Eggert
2020-05-30 22:54                                                                               ` Pip Cet
2020-05-30 16:31                                                     ` Paul Eggert
2020-05-30 16:42                                                       ` Eli Zaretskii
2020-05-30 17:06                                                         ` Paul Eggert
2020-05-30 17:22                                                           ` Eli Zaretskii
2020-05-30 18:12                                                             ` Paul Eggert
2020-05-30 18:21                                                               ` Eli Zaretskii
2020-05-30 19:14                                                                 ` Paul Eggert
2020-05-30 19:33                                                                   ` Eli Zaretskii
2020-05-30 22:18                                                                     ` Paul Eggert
2020-05-31 15:48                                                                       ` Eli Zaretskii
2020-06-01 14:48                                                                         ` Eli Zaretskii
2020-09-27 14:39                                                                           ` Lars Ingebrigtsen
2020-09-27 14:45                                                                             ` Pip Cet
2020-09-27 15:02                                                                               ` Lars Ingebrigtsen
2020-09-27 15:16                                                                             ` Eli Zaretskii
2020-05-30 16:53                                                       ` Pip Cet
2020-05-30  5:50                                                   ` Eli Zaretskii
2020-05-29  8:25                                               ` Pip Cet
2020-05-25 15:14                             ` Eli Zaretskii
2020-05-25 17:41                               ` Pip Cet
2020-05-24 19:00               ` Andy Moreton
2020-05-24 19:09                 ` Pip Cet
2020-05-29 10:16         ` Eli Zaretskii
2020-05-29 10:34           ` Pip Cet
2020-05-29 10:55             ` Eli Zaretskii
2020-05-29 11:47               ` Pip Cet
2020-05-29 13:52                 ` Eli Zaretskii
2020-05-29 14:19                   ` Pip Cet

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