Reproducible assertion failure in XCB

Reproducible assertion failure in XCB

[Daniel Colascione]

1. Start the Z server
2. Start emacs -Q
3. M-x server-start
4. M-: (while t (call-process-shell-command "date" nil t))
5. Lean on C-g

Eventually, Emacs will crash with

assertion "XLIB_SEQUENCE_COMPARE(dpy->last_request_read, <=,
dpy->request)" failed: file
"/usr/src/ports/xorg/libX11/libX11-1.3.3-1/src/libX11-1.3.3/src/xcb_io.c",
line 249, function: process_responses
Fatal error (6)Aborted (core dumped)

If Emacs doesn't crash the first time and successfully exits the loop,
repeat steps 4 and 5.

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Re: Reproducible assertion failure in XCB

[Jon TURNEY]

On 14/01/2011 15:01, Daniel Colascione wrote:
> 1. Start the Z server
> 2. Start emacs -Q
> 3. M-x server-start
> 4. M-: (while t (call-process-shell-command "date" nil t))
> 5. Lean on C-g
> 
> Eventually, Emacs will crash with
> 
> assertion "XLIB_SEQUENCE_COMPARE(dpy->last_request_read, <=,
> dpy->request)" failed: file
> "/usr/src/ports/xorg/libX11/libX11-1.3.3-1/src/libX11-1.3.3/src/xcb_io.c",
> line 249, function: process_responses
> Fatal error (6)Aborted (core dumped)

There is a libX11_6 1.4.0-1 package in cygwinports (along with all the other
excellent work Yaakov has been doing packaging X11R7.6), it would be great if
you could test with that, as there have been several fixes in this area since
1.3.3

You could probably get away with just upgrading libX11_6, libX11-xcb1 and
libxcb1, rather than everything.  Although since those libraries have been
built with gcc 4.5, you might need to upgrade libgcc1, as well.

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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Re: Reproducible assertion failure in XCB

[Daniel Colascione]

On Mon, Jan 17, 2011 at 10:47 AM, Jon TURNEY
<jon.turney@dronecode.org.uk> wrote:
> There is a libX11_6 1.4.0-1 package in cygwinports (along with all the other
> excellent work Yaakov has been doing packaging X11R7.6), it would be great if
> you could test with that, as there have been several fixes in this area since
> 1.3.3

I can do that today or tomorrow --- but could someone kindly point me
to the repository? I thought you mean the Cygwin experimental
respository, but that turns out not to be the case.

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Re: Reproducible assertion failure in XCB

[Larry Hall (Cygwin X)]

On 1/21/2011 1:42 PM, Daniel Colascione wrote:
> On Mon, Jan 17, 2011 at 10:47 AM, Jon TURNEY
> <jon.turney>  wrote:
>> There is a libX11_6 1.4.0-1 package in cygwinports (along with all the other
>> excellent work Yaakov has been doing packaging X11R7.6), it would be great
>> if you could test with that, as there have been several fixes in this area
>> since 1.3.3
>
> I can do that today or tomorrow --- but could someone kindly point me
> to the repository? I thought you mean the Cygwin experimental
> respository, but that turns out not to be the case.

See <http://sourceware.org/cygwinports/>.


-- 
Larry

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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