Re: Emacs 25 hangs on windows arbitrarily during search of a unicode file

[Richard Copley <rcopley@gmail.com>]

On 28 October 2017 at 13:19, Eli Zaretskii <eliz@gnu.org> wrote:
>> From: Richard Copley <rcopley@gmail.com>
>> Date: Sat, 28 Oct 2017 13:10:50 +0100
>> Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
>>
>> > Maybe it's something specific to the 64-bit build?
>>
>> I suspect it might be the 64-bit specific alignment issue
>> discussed in this thread:
>> <http://lists.gnu.org/archive/html/emacs-devel/2017-10/msg00329.html>
>>
>> I've downloaded the 32-bit pretest for now, as the build I
>> described is unusable, I'm sorry to report. It very frequently
>> crashes on C-g.
>>
>> After repeating my recipe above with that build, the faulting
>> instruction in ntdll!RtlCaptureContext is
>>
>> => 0x00007ffaa1b693a0 <+384>:   movaps 0x60(%rax),%xmm0
>>
>> ... and %rax is 17185954536 decimal, 4005CDAE8 hex (not 16-byte
>> aligned).
>
> What variable is in RAX in that case?

I don't think I can see that from here. I might be missing something.
If it is an argument passed to ntdll!RtlCaptureContext, perhaps I
can work it out from the function signature and the disassembly.
Is that what you meant?

(If you would you like to work it out yourself, how can I help?)