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[Guile-commits] GNU Guile branch, stable-2.0, updated. v2.0.1-145-gb8441
From: |
Ludovic Courtès |
Subject: |
[Guile-commits] GNU Guile branch, stable-2.0, updated. v2.0.1-145-gb844157 |
Date: |
Thu, 30 Jun 2011 20:58:26 +0000 |
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http://git.savannah.gnu.org/cgit/guile.git/commit/?id=b8441577f9954053a90981a5c134aa43f341f712
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- Log -----------------------------------------------------------------
commit b8441577f9954053a90981a5c134aa43f341f712
Author: Ludovic Courtès <address@hidden>
Date: Thu Jun 30 22:58:07 2011 +0200
Fix `on_thread_exit' for canceled threads.
* libguile/threads.c (on_thread_exit): Clear `t->guile_mode' upon
entry. This fixes a bug whereby `t->base' would be incorrect for
canceled threads, leading to a misdiagnosed VM stack overflow.
See <http://lists.gnu.org/archive/html/bug-guile/2011-06/msg00068.html>
for details.
(scm_leave_guile_cleanup): Remove because it's unused.
-----------------------------------------------------------------------
Summary of changes:
libguile/threads.c | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/libguile/threads.c b/libguile/threads.c
index c07c853..0c6b8b4 100644
--- a/libguile/threads.c
+++ b/libguile/threads.c
@@ -696,6 +696,10 @@ on_thread_exit (void *v)
/* This handler is executed in non-guile mode. */
scm_i_thread *t = (scm_i_thread *) v, **tp;
+ /* If we were canceled, we were unable to clear `t->guile_mode', so do
+ it here. */
+ t->guile_mode = 0;
+
/* If this thread was cancelled while doing a cond wait, it will
still have a mutex locked, so we unlock it here. */
if (t->held_mutex)
@@ -835,12 +839,6 @@ scm_init_guile ()
}
}
-SCM_UNUSED static void
-scm_leave_guile_cleanup (void *x)
-{
- on_thread_exit (SCM_I_CURRENT_THREAD);
-}
-
struct with_guile_args
{
GC_fn_type func;
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