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bug#4765: 23.1; set-frame-name makes emacs -nw crash on mac


From: Adrian Robert
Subject: bug#4765: 23.1; set-frame-name makes emacs -nw crash on mac
Date: Fri, 23 Oct 2009 16:10:10 -0400


On Oct 23, 2009, at 12:59 PM, Chong Yidong wrote:

Adrian Robert <address@hidden> writes:

On Oct 23, 2009, at 11:46 AM, Chong Yidong wrote:

Hi Adrian, can you reproduce this problem?

I can on Snow Leopard and Tiger but this is in -nw mode and the stack
trace (below) shows nothing involved from NS side.  Does it appear
under other OS's?  The stack trace below shows it resulting from
ns_set_name() called from x_implicitly_set_name. ns_set_name does not
check if it is an ns frame, but the X equivalent doesn't either.  It
seems like something is going wrong earlier if x_implicitly_set_name
is being called for a non-GUI frame.

No crash for me on GNU/Linux.  The x_implicity_set_name function *is*
called, but because `f->explicit_name' is non-zero (it's 1), that
function returns.

I think the problem is that ns_set_name should defer calling
FRAME_NS_VIEW until after line 542. Maybe that fixes the bug; could you
check?

It fixes the crash, but nothing gets changed in the display either. On emacs-22 it sets something just to the right of the left set of dashes. Could this be an additional bug in the NS code?

-Adrian






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