[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#30931: 27.0.50; Crash in "Automatic GC"
From: |
Noam Postavsky |
Subject: |
bug#30931: 27.0.50; Crash in "Automatic GC" |
Date: |
Thu, 29 Mar 2018 19:47:13 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.90 (gnu/linux) |
Michał Kondraciuk <k.michal@zoho.com> writes:
> I don't know if it helps, but I was able to reproduce a crash in the
> same place (mark_object()) with bare Emacs, however only in 27.0.50.
This is very helpful, thank you.
> I have no idea what this code does at all. The way I wrote this is I
> kept rerunning the previous recipe but each time I commented out some
> part of yasnippet.el library. If Emacs crashed, I kept the change,
> otherwise I uncommented those parts and focused on another region, and
> so on until I was left with very simple functions.
I was going to do the same thing, just no time to get to it this week.
> I hope someone can confirm that it crashes.
I can confirm it crashes, and much faster too, just two calls of the
crash function are enough:
(progn
(defun on-overlay-modification (&rest args)
(push nil buffer-undo-list))
(defun crash ()
(save-restriction
(narrow-to-region 1 1)
(let (end)
(insert " 123aaa")
(narrow-to-region 2 3)
(setq end (set-marker (make-marker) 3))
(save-restriction
(widen)
(lisp-indent-line))
(garbage-collect)
(overlay-put (make-overlay end (1+ end))
'modification-hooks '(on-overlay-modification)))))
(with-current-buffer "*scratch*"
(erase-buffer)
(let ((buffer-undo-list t))
(crash)
(erase-buffer)
(crash))))
bug#30931: abort() due to CHECK_ALLOCATED_AND_LIVE failure during GC, Paul Eggert, 2018/03/30