Date: Sat, 20 Feb 1999 13:13:46 -0500 From: "David E. Cross" <crossd@cs.rpi.edu> To: freebsd-hackers@freebsd.org Subject: race condition in rc/rc.network Message-ID: <199902201813.NAA27406@cs.rpi.edu>
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There exists a race condition in the startup scripts when using amd to
automount a parition where shared libraries will be added with
'ldconfig_paths'. The problem is that AMD returns before it is fully ready,
and is run (in network_pass3) almost immediately before the ldconfig line.
The solution is from the 'wait4amd' script that is included in the am-utils
distribution, but not included in our system?? It is basically to have a
'loose' loop check for amd being up before allowing the scripts to continue.
I have included my diffs to rc.network below, and I hope they will find a
warm, caring home in the CVS tree :)
--
David Cross
*** rc.network.old Sat Feb 20 12:56:18 1999
--- rc.network Sat Feb 20 13:05:29 1999
***************
*** 284,294 ****
fi
if [ "X${amd_enable}" = X"YES" ]; then
! echo -n ' amd'
if [ "X${amd_map_program}" != X"NO" ]; then
amd_flags="${amd_flags} `eval ${amd_map_program}`"
fi
amd -p ${amd_flags} > /var/run/amd.pid 2> /dev/null
fi
if [ "X${rwhod_enable}" = X"YES" ]; then
--- 284,299 ----
fi
if [ "X${amd_enable}" = X"YES" ]; then
! echo -n ' amd('
if [ "X${amd_map_program}" != X"NO" ]; then
amd_flags="${amd_flags} `eval ${amd_map_program}`"
fi
amd -p ${amd_flags} > /var/run/amd.pid 2> /dev/null
+ while ! amq >/dev/null 2>&1; do
+ echo -n .
+ sleep 1;
+ done
+ echo -n ')'
fi
if [ "X${rwhod_enable}" = X"YES" ]; then
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