Bug#528053: php</dev/null Segmentation fault in libXdmcp

[jidanni@jidanni.org]

# strace php </dev/null >/dev/null 2>&1
Segmentation fault
# dmesg |tail -n 1
[ 9964.678720] php[3698]: segfault at b68e7dc0 ip b68e7dc0 sp b684e39c error 4 in libXdmcp.so.6.0.0[b6ad2000+4000]

So there's your answer, libxdmcp apparently. Note that this bug only
occurs on my Thinkpad R50e.

It even happens in single-user mode with just
# pstree
init-+-init---bash---pstree
     |-pdnsd---3*[{pdnsd}]
     `-udevd---2*[udevd]

Note that
$ php
^D
$
does not trigger the bug. Regarding mysql, nvidia:
# lshw|grep -ic nvid
0
# ldd `which php`|grep -c my
0
# lsmod |egrep my\|nv
nvram                   3957  1 thinkpad_acpi