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bug#24063: 25.1; Emacs 25.1 RC1 crashes on Solaris 11.3 when asked to op
From: |
Eli Zaretskii |
Subject: |
bug#24063: 25.1; Emacs 25.1 RC1 crashes on Solaris 11.3 when asked to open and display an image |
Date: |
Mon, 25 Jul 2016 19:39:17 +0300 |
> Date: Mon, 25 Jul 2016 00:00:06 -0700
> From: Henry Unger <hunger@hitech.com>
> Cc: 24063@debbugs.gnu.org
>
> I rebuilt it, adding "-g" to CFLAGS, and reproduced the problem, which now
> shows line numbers:
>
> current thread: t@1
> [1] __lwp_sigqueue(0x0, 0x1, 0xb, 0x0, 0xffffffff, 0x0, 0xb, 0x6105b88), at
> 0x610cf85
> [2] thr_kill(0x1, 0xb, 0x8511298, 0x60af2e1), at 0x6105bb2
> [3] raise(0xb, 0x85112b0, 0x0, 0x0, 0x400, 0x0), at 0x60af2ed
> =>[4] terminate_due_to_signal(sig = 11, backtrace_limit = 40), line 381 in
> "emacs.c"
> [5] deliver_fatal_signal(sig = <bad address 0x00000004>), line 1607 in
> "sysdep.c"
> [6] deliver_thread_signal(sig = 11, handler = 0x81f6f4c =
> &`emacs`sysdep.c`handle_fatal_signal(int sig)), line 1575 in "sysdep.c"
> [7] deliver_fatal_thread_signal(sig = 11), line 1613 in "sysdep.c"
> [8] handle_sigsegv(sig = 11, siginfo = 0x851199c, arg = 0x851144c), line
> 1695 in "sysdep.c"
> [9] __sighndlr(0xb, 0x851199c, 0x851144c, 0x81f708c), at 0x61084b5
> [10] call_user_handler(0xb), at 0x60fb10e
> [11] sigacthandler(0xb, 0x851199c, 0x851144c, 0x1f, 0x0, 0x0), at 0x60fb5a6
> ---- called from signal handler with signal 11 (SIGSEGV) ------
> [12] imagemagick_load_image(f = 0x8a0c5a8, img = 0x8afcd00, contents =
> (nil), size = 0, filename = 0x8caa450 "/home/hunger/foo.png"), line 8787 in
> "image.c"
Thanks. This is here:
int xlim = min (row_width, width);
for (x = 0; x < xlim; x++)
{
PixelGetMagickColor (pixels[x], &pixel);
XPutPixel (ximg, x, y, <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
lookup_rgb_color (f,
color_scale * pixel.red,
color_scale * pixel.green,
color_scale * pixel.blue));
}
That particular line is a strange place to crash. Can you tell what
are the values of ximg, xlim, x, y, and pixels[x] when it crashes?