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bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash
From: |
Aaron Jensen |
Subject: |
bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash |
Date: |
Fri, 30 Oct 2020 14:37:04 -0500 |
On Fri, Oct 30, 2020 at 2:08 PM Eli Zaretskii <eliz@gnu.org> wrote:
> I don't know. The code in Fmouse_pixel_position uses the
> selected-frame, so it is quite strange, to say the least, that this
> frame could be garbled when you just move the mouse pointer.
I'm in the debugger right now. It happened as soon as I started a
full-screen zoom screenshare (maybe that's a hint?)
The value of f is different than selected_frame and
dpyinfo->ns_focus_frame, which means that it's likely set in this
code:
#ifdef NS_IMPL_COCOA
/* Find the uppermost Emacs frame under the mouse pointer.
This doesn't work on GNUstep, although in recent versions there
is compatibility code that makes it a noop. */
NSPoint screen_position = [NSEvent mouseLocation];
NSInteger window_number = 0;
do
{
NSWindow *w;
window_number = [NSWindow windowNumberAtPoint:screen_position
belowWindowWithWindowNumber:window_number];
w = [NSApp windowWithWindowNumber:window_number];
if (w && [[w delegate] isKindOfClass:[EmacsView class]])
f = ((EmacsView *)[w delegate])->emacsframe;
}
while (window_number > 0 && !f);
#endif
I wonder if a check for FRAME_LIVE_P should be added here for safety?
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Aaron Jensen, 2020/10/29
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Eli Zaretskii, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Aaron Jensen, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Eli Zaretskii, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Aaron Jensen, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Eli Zaretskii, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Aaron Jensen, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Eli Zaretskii, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash,
Aaron Jensen <=
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Eli Zaretskii, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Aaron Jensen, 2020/10/30
- bug#44313: 27.1.50; ns_mouse_position EXC_BAD_ACCESS crash, Alan Third, 2020/10/30