Messages in this thread | | | Date | Mon, 12 May 2014 12:48:10 +0800 | From | zhuyj <> | Subject | Re: icmp: account for ICMP out errors because of socket limit |
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Hi, Eric && David
This patch is similar to the following patch.
commit 1f8438a853667d48055ad38384c63e94b32c6578 Author: Eric Dumazet <eric.dumazet@gmail.com> Date: Sat Apr 3 15:09:04 2010 -0700
icmp: Account for ICMP out errors
When ip_append() fails because of socket limit or memory shortage, increment ICMP_MIB_OUTERRORS counter, so that "netstat -s" can report these errors.
LANG=C netstat -s | grep "ICMP messages failed" 0 ICMP messages failed
For IPV6, implement ICMP6_MIB_OUTERRORS counter as well.
# grep Icmp6OutErrors /proc/net/dev_snmp6/* /proc/net/dev_snmp6/eth0:Icmp6OutErrors 0 /proc/net/dev_snmp6/lo:Icmp6OutErrors 0
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Best Regards! Zhu Yanjun
On 05/12/2014 11:19 AM, zhuyj wrote: > Hi, Eric && David > > ____ ______________ > | | | | > | PC |<------->| MIPS 32 core | > |____| |______________| > > When ping from a PC to a board (MIPS 32 core), because of socket limit, > ping echo will fail. But ICMP_MIB_OUTERRORS counter is not incremented. > In this case, "netstat -s" can not report these errors. > > This patch will fix this problem. Now it is in the attachment. Please > check it. > > Best Regards! > Zhu Yanjun
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