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bug#38748: 28.0.50; crash on MacOS 10.15.2
From: |
Andrii Kolomoiets |
Subject: |
bug#38748: 28.0.50; crash on MacOS 10.15.2 |
Date: |
Wed, 01 Jan 2020 22:42:19 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (darwin) |
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Andrii Kolomoiets <andreyk.mad@gmail.com>
>> Cc: alan@idiocy.org, 38748@debbugs.gnu.org
>> Date: Sun, 29 Dec 2019 21:01:42 +0200
>>
>> I can print the 'last_marked_index':
>>
>> (gdb) p last_marked_index
>> $2 = 41
>>
>> But what can I do with 'last_marked'?
>>
>> (gdb) p last_marked[40]
>> 'last_marked' has unknown type; cast it to its declared type
>
> last_marked is an array of Lisp objects, arranged in circular order,
> i.e. when the index reaches the last element, it is reset back to
> zero.
>
> To print the object at last_marked[i], for some i, you do
>
> (gdb) p last_marked[i]
> (gdb) xtype
>
> The xtype command will tell you the type of the Lisp object. You then
> display it with the corresponding xTYPE command: xint for an integer,
> xcons for a cons cell, xstring for a string, xvector for a vector,
> xbuffer for a buffer, etc. Here's a short example:
>
> (gdb) p last_marked_index
> $2 = 1
> (gdb) p last_marked[0]
> $3 = XIL(0x8000000006287630)
> (gdb) xtype
> Lisp_String
> (gdb) xstring
> $4 = (struct Lisp_String *) 0x6287630
> " *buffer-defaults*"
I'm still have no luck to print last_marked item:
(gdb) p last_marked_index
$1 = 278
(gdb) p last_marked[277]
'last_marked' has unknown type; cast it to its declared type
IDK if it make sense, casting last_modified to Lisp_Object gives me
this:
(gdb) p (Lisp_Object)last_marked
$6 = XIL(0x102dc4203)
(gdb) xtype
Lisp_Cons
(gdb) xcons
$7 = (struct Lisp_Cons *) 0x102dc4200
{
u = {
s = {
car = XIL(0x102a3aa15),
u = {
cdr = XIL(0x102dc4213),
chain = 0x102dc4213
}
},
gcaligned = 0x15
}
}
But I found the commit after which error is occurs:
b2949d39261e82c33572ba8a250298ef0b165b95
Commenting out that 'ok = false;' line make Emacs works without errors.
Justin, can you please check if Emacs prior to that commit is works fine
for you?
- bug#38748: 28.0.50; crash on MacOS 10.15.2,
Andrii Kolomoiets <=
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Eli Zaretskii, 2020/01/02
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/08
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Pip Cet, 2020/01/08
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Eli Zaretskii, 2020/01/08
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Pip Cet, 2020/01/08
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Eli Zaretskii, 2020/01/08
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Pip Cet, 2020/01/10
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Eli Zaretskii, 2020/01/10
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Robert Pluim, 2020/01/10
- bug#38748: 28.0.50; crash on MacOS 10.15.2, Eli Zaretskii, 2020/01/10