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Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
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table
Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
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Use unshare(CLONE_FILES) to create a local file descriptors namespace
for the SNMP thread. This is similar to what was done in bf5340
'net-snmp: run snmp in "special" thread', but without calling clone()
directly. So the net-snmp plugin keeps running in a regular pthread.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
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This reverts commit bf5340291badcc631bd855bb924593cd445ecd26.
snmp_thread() needs to be run as regular thread to allow Valgrind
analysis. Using a different namespace for file desciptors will be
done later on using unshare().
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
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NET-SNMP is built on top of stale file descriptor multiplexing mechanism (select)
which prevents to use descriptors with number >= 1024.
Due to accel-ppp uses a lots of descriptors NET-SNMP easy overflows this limit and fails
and even may crash whole accel-ppp process.
This patch runs snmp in special thread which does not share file descritor table
with main process, so it can use less descriptors and live in __FD_SETSIZE limit.
Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
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Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
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Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
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cli commands
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