From: "Mitchell, Paul" <Paul.Mitchell@amd.com>
To: "Stefan Monnier" <monnier@iro.umontreal.ca>
Cc: 1243@emacsbugs.donarmstrong.com, bug-gnu-emacs@gnu.org, "Bilik,
Scott" <Scott.Bilik@amd.com>
Subject: bug#1243: Verilog mode hanging emacs 22.2
Date: Mon, 27 Oct 2008 09:58:05 -0400 [thread overview]
Message-ID: <049C4E48B10A854FB9D3B3C9DFAB506BC3D3FF@smarexmb1.amd.com> (raw)
In-Reply-To: <jwvprlofrmo.fsf-monnier+emacsbugreports@gnu.org>
Stefan,
I ran emacs under gdb, from within the src directory. I then edited the
file that exhibits this problem and did a few incremental searches.
This caused emacs to hang. I tried to break out of this from gdb using
ctrl-c, which killed emacs so that I could not use xbacktrace. Then,
from the gdb prompt I used: "handle SIGINT stop", got back to the hang,
and tried ctrl-c again. I now was able to use xbacktrace, and see this:
(gdb) xbacktrace
"re-search-backward" (0x86f1eeb)
"verilog-beg-of-defun" (0x87cfd85)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8811595)
"verilog-beg-of-defun" (0x87cfd85)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8804edd)
"verilog-beg-of-defun" (0x87d1405)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8804e9d)
"verilog-beg-of-defun" (0x87d1405)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8808745)
"verilog-beg-of-defun" (0x87d1405)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8808785)
"verilog-beg-of-defun" (0x87d1405)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x88087c5)
"verilog-beg-of-defun" (0x87dabdd)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x87edc35)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711c85)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711cf5)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711d35)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711d75)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711dd5)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711e65)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711f15)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
---Type <return> to continue, or q <return> to quit---
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711f55)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x8711f95)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x871203d)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"verilog-syntax-ppss" (0x831e8c9)
"verilog-skip-backward-comment-or-string" (0x87120b5)
"verilog-beg-of-defun" (0xa4670)
"byte-code" (0x8234d13)
"syntax-ppss" (0x1122c8)
"font-lock-fontify-syntactically-region" (0x1122c8)
"font-lock-default-fontify-region" (0x1122c8)
"font-lock-fontify-region" (0x1122c8)
"run-hook-with-args" (0x8514ce1)
"byte-code" (0x8239e2b)
"jit-lock-fontify-now" (0x112458)
"jit-lock-function" (0x112458)
(gdb)
-----Original Message-----
From: Stefan Monnier [mailto:monnier@iro.umontreal.ca]
Sent: Saturday, October 25, 2008 2:39 PM
To: Mitchell, Paul
Cc: 1243@emacsbugs.donarmstrong.com; bug-gnu-emacs@gnu.org
Subject: Re: bug#1243: Verilog mode hanging emacs 22.2
> Bring a verilog file (*.v) into the editor, and either search for
> something or simply page down thru it. After a few searches or pages,
> the clock symbol is displayed on the mouse cursor, and emacs is
> completely unresponsive. A "top" shows that emacs is using most of
the
> cpu. Nothing I've tried from within emacs has been able to break out
of
> this - the emacs process is hung. This seems to happen more with
> font-lock mode enabled, but it also occurs w/o it.
> I've contacted the maintainer of verilog-mode, and he has been able to
> reproduce this, but is unsure how to debug it. His stack trace:
To make better sense of the stack trace, you need to use `xbacktrace'
(which will give a Lisp-level interpretation of the stack).
`xbacktrace' is defined in emacs/src/.gdbinit so you need to start `gdb'
from the `src' directory of the Emacs build tree.
Stefan
next prev parent reply other threads:[~2008-10-27 13:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <wwbpt79dw2.fsf@fencepost.gnu.org>
2008-10-24 20:38 ` bug#1243: Verilog mode hanging emacs 22.2 Mitchell, Paul
2008-10-25 18:38 ` Stefan Monnier
2008-10-27 13:58 ` Mitchell, Paul [this message]
2008-10-27 14:20 ` Stefan Monnier
2008-10-27 14:38 ` Mitchell, Paul
2009-02-13 4:20 ` bug#1243: marked as done (Verilog mode hanging emacs 22.2) Emacs bug Tracking System
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