From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Dmitry Antipov <dmantipov@yandex.ru>
Cc: 18473@debbugs.gnu.org
Subject: bug#18473: 24.4.50; SEGFAULT when vconcatting more than 2048 vectors
Date: Mon, 15 Sep 2014 09:09:17 -0400 [thread overview]
Message-ID: <jwvlhplf39a.fsf-monnier+emacsbugs@gnu.org> (raw)
In-Reply-To: <5416895B.4080807@yandex.ru> (Dmitry Antipov's message of "Mon, 15 Sep 2014 10:38:19 +0400")
> - set_backtrace_args (specpdl_ptr - 1, vals);
> - set_backtrace_nargs (specpdl_ptr - 1, XINT (numargs));
> + set_backtrace_args (backtrace_top (), vals, XINT (numargs));
I'm not thrilled at the idea of having to call backtrace_top every time,
instead of just using "specpdl_ptr - 1". I'd much rather compute
specpdl_ptr - 1 before calling USE_SAFE_ALLOCA, for example.
BTW, don't we have the same problem for the subsequent call to
backtrace_debug_on_exit (and this one is worse because it is shared
among all the different kinds of calls, so we *really* don't want to
slow it down).
Stefan
next prev parent reply other threads:[~2014-09-15 13:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-14 2:37 bug#18473: 24.4.50; SEGFAULT when vconcatting more than 2048 vectors Michael Welsh Duggan
2014-09-14 17:10 ` Dmitry Antipov
2014-09-15 6:38 ` Dmitry Antipov
2014-09-15 13:09 ` Stefan Monnier [this message]
2014-09-15 15:04 ` Dmitry Antipov
2014-09-15 19:15 ` Stefan Monnier
2014-09-16 4:19 ` Dmitry Antipov
2014-09-23 15:52 ` Paul Eggert
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