GNU bug report logs - #52446
28.0.90; Infinite loop in add_row_entry

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Package: emacs;

Reported by: Po Lu <luangruo <at> yahoo.com>

Date: Sun, 12 Dec 2021 05:16:01 UTC

Severity: normal

Found in version 28.0.90

Done: Po Lu <luangruo <at> yahoo.com>

Bug is archived. No further changes may be made.

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Message #34 received at 52446-done <at> debbugs.gnu.org (full text, mbox):

From: Po Lu <luangruo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 52446-done <at> debbugs.gnu.org
Subject: Re: bug#52446: 28.0.90; Infinite loop in add_row_entry
Date: Mon, 13 Dec 2021 21:35:46 +0800
Po Lu <luangruo <at> yahoo.com> writes:

> Eli Zaretskii <eliz <at> gnu.org> writes:
>
>> Now I'm confused: if row_table[i] is NULL for each i, then how did we
>> enter that loop?  Its condition checks for entry being non-NULL.
>
> The disassembly checks out, so that condition is not being mis-compiled.
> But that doesn't rule out the possibility of a miscompilation elsewhere.
>
> I will try to reproduce this under a memory checker, and with
> optimizations turned off.

It is a miscompilation of scrolling_window, which disappeared after
updating GCC.  Closing this bug, and thanks for the help.




This bug report was last modified 3 years and 195 days ago.

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