Searched hist:"7 c3f1875c66fbc19762760097cabc91849ea0bbb" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/net/core/ |
| H A D | sysctl_net_core.c | diff 7c3f1875c66fbc19762760097cabc91849ea0bbb Wed May 24 03:22:22 CDT 2017 Roman Kapl <roman.kapl@sysgo.com> net: move somaxconn init from sysctl code
The default value for somaxconn is set in sysctl_core_net_init(), but this
function is not called when kernel is configured without CONFIG_SYSCTL.
This results in the kernel not being able to accept TCP connections,
because the backlog has zero size. Usually, the user ends up with:
"TCP: request_sock_TCP: Possible SYN flooding on port 7. Dropping request. Check SNMP counters."
If SYN cookies are not enabled the connection is rejected.
Before ef547f2ac16 (tcp: remove max_qlen_log), the effects were less
severe, because the backlog was always at least eight slots long.
Signed-off-by: Roman Kapl <roman.kapl@sysgo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| H A D | net_namespace.c | diff 7c3f1875c66fbc19762760097cabc91849ea0bbb Wed May 24 03:22:22 CDT 2017 Roman Kapl <roman.kapl@sysgo.com> net: move somaxconn init from sysctl code
The default value for somaxconn is set in sysctl_core_net_init(), but this
function is not called when kernel is configured without CONFIG_SYSCTL.
This results in the kernel not being able to accept TCP connections,
because the backlog has zero size. Usually, the user ends up with:
"TCP: request_sock_TCP: Possible SYN flooding on port 7. Dropping request. Check SNMP counters."
If SYN cookies are not enabled the connection is rejected.
Before ef547f2ac16 (tcp: remove max_qlen_log), the effects were less
severe, because the backlog was always at least eight slots long.
Signed-off-by: Roman Kapl <roman.kapl@sysgo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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