Source: xapian-core
Severity: serious
Justification: (Occasionally) fails to autobuild

We've been seeing occasional FTBFS from xapian-core for some time, where
tracing back the origin of the exception, it appears to be due to
connect() or read() returning ECHILD, when neither is documented to.

Looking at the number of failures compared to the number of attempts, it
looks like it happens a few percent of the time.

The failure has been seen on multiple architectures - mipsel, hppa,
alpha and i386 so far.

I have only ever seen this on Debian buildds.  Rebuilds on porter boxes
for failed cases have always worked for me, and I have never seen this
when running the testsuite myself (which I do a lot, particularly on
x86-64, as I also do upstream development).

The rarity and inability to reproduce this where I can directly
investigate makes it rather hard to debug what's going on, but we really should
have a bug to track this, so I'm filing one.

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_NZ.UTF-8, LC_CTYPE=en_NZ.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

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