[Xcb] Bug#426715: Bug#426715: 100_sloppy_lock.diff missing from libxcb 1.0-3

[Josh Triplett]

tags 426715 + wontfix
close 426715
thanks

Mika S Marjamäki wrote:
> In libxcb 1.0-1.2 there was a patch which allowed many broken
> applications (e.g. java) to run with newer libxcb:
> 
>         - - -
>         libxcb (1.0-1.2) experimental; urgency=low
>         
>           * Add 100_sloppy_lock.diff which allows a workaround for programs that throw
>             lock errors. You can set the environment variable "LIBXCB_SLOPPY_LOCK"
>             when you run that program and xcb won't exit when it generates a locking
>             error. This will allow java to run.
>         
>          -- David Nusinow <dnusinow at debian.org>  Sun, 08 Apr 2007 11:50:13 -0400
>         - - -
> 
> For some reason this rather useful patch is missing from libxcb 1.0.3,
> which is currently in unstable.

Quoting a previous message I sent to someone on this topic:
On Wed, May 30, 2007 at 02:33:45PM -0700, Josh Triplett wrote:
> We do not plan to upload libX11 with Xlib/XCB to unstable until we have some
> sort of satisfactory solution for some of the widely-used programs with broken
> locking, including Java.  (Emphasis on "some"; many of the problems will still
> get sorted out in unstable.)  If you need to run programs with broken locking
> before Sun addresses that problem or we find some other solution, feel free to
> run libX11 from unstable and you will not encounter those problems.
> 
> We do not plan to include the patch from that NMU (which occurred without our
> knowledge), and the upload to unstable intentionally omitted this patch.  This
> patch will not go upstream into XCB.  No amount of telling people "temporary
> workaround" will prevent this from becoming a semi-permanent solution, so we
> want to reject it from the start.  Almost any use of this workaround will lead
> to undefined and likely buggy behavior in XCB or Xlib/XCB.  We need people to
> pressure the authors of broken software to fix it, and we can't do that when
> the easier solution just requires exporting an environment variable.

Quoting David Nusinow:
> I just want to chime in that even though I did the NMU and included the
> patch, I back the XCB maintainers and their plan. I wanted to provide an
> escape hatch for people using things in experimental who needed to run java
> apps (a group that includes myself) but also do so in a way that allowed us
> to catch the application bugs. The patch is a stopgap solution and we need
> a proper one before building libx11 against Xlib/XCB and shipping it
> generally.

jcristau, christoph4 and I managed to track down the problem with Sun Java 1.5
and 1.6, and we have a workaround now.  Expect a mail about this this shortly,
and a fix in unstable soon.

- Josh Triplett


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