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bug#29040: Emacs 25 hangs on windows arbitrarily during search of a unic
From: |
Eli Zaretskii |
Subject: |
bug#29040: Emacs 25 hangs on windows arbitrarily during search of a unicode file |
Date: |
Sat, 28 Oct 2017 19:41:33 +0300 |
> From: Richard Copley <rcopley@gmail.com>
> Date: Sat, 28 Oct 2017 17:16:14 +0100
> Cc: 29040@debbugs.gnu.org
>
> > Actually, I think it was caused by 015f0bb. Does the patch below fix
> > the problem? Please actually check the alignment of getcjmp, not just
> > that the crashes went away.
> >
> > diff --git a/src/thread.c b/src/thread.c
> > index 6f12d79..2520771 100644
> > --- a/src/thread.c
> > +++ b/src/thread.c
> > @@ -26,7 +26,11 @@ along with GNU Emacs. If not, see
> > <https://www.gnu.org/licenses/>. */
> > #include "coding.h"
> > #include "syssignal.h"
> >
> > -static struct thread_state alignas (GCALIGNMENT) main_thread;
> > +#define COMMON_MULTIPLE(a, b) \
> > + ((a) % (b) == 0 ? (a) : (b) % (a) == 0 ? (b) : (a) * (b))
> > +#define THREAD_ALIGNMENT COMMON_MULTIPLE (alignof (max_align_t),
> > GCALIGNMENT)
> > +
> > +static struct thread_state alignas (THREAD_ALIGNMENT) main_thread;
> >
> > struct thread_state *current_thread = &main_thread;
>
> Looks good. There's no crash and getcjmp is aligned:
>
> Thread 1 hit Breakpoint 3, quit_throw_to_read_char (
> from_signal=from_signal@entry=false) at keyboard.c:10548
> 10548 sys_longjmp (getcjmp, 1);
> (gdb) p &getcjmp
> $1 = (sys_jmp_buf *) 0x4005cdaf0 <main_thread+224>
Thanks, I installed that.
If the problem doesn't come back, please close the bug.