[Fontconfig] Xft2 on topic? If so, what could cause XftDrawDepth hangs on a multiprocessor machine?

[Keith Packard]

Around 12 o'clock on Apr 1, Stefaan A Eeckels wrote:

| Attached to process 6139 with 3 LWPs
| t at 1 (l at 1) stopped in _poll at 0xff29dbb4
| 0xff29dbb4: _poll+0x0004:       ta      %icc,%g0 + 8
| (dbx) where
| current thread: t at 1
| =>[1] _poll
| [2] _select
| [3] _ti_select
| [4] _XWaitForReadable
| [5] _XRead
| [6] _XReply
| [7] XGetGeometry
| [8] XftDrawDepth
| [9] XftGlyphFontSpecCore
| [10] XftDrawGlyphFontSpec
| [11] nsFontMetricsXft::DrawString

Any chance you could use xscope, xmon or some other protocol tracing tool 
to see whether the request and reply are actually exchanged here?

There were bugs in the locking code inside the Xrender library; if you 
have an older version of that, that might be causing trouble.  You should 
be able to check this by disabling use of the Render extension from Xft 
by setting an X resource before starting Mozilla:

$ xrdb -merge << EOF
Xft.render: false
EOF

-keith


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