Re: Linux LowMem errors

From: Tim Gorman <>
Date: Sun, 10 Feb 2008 08:59:44 -0700
Message-ID: <>


MTU of 32768 sounds interesting -- usually it is set to 1500,
occasionally 9000.  Not sure if this is significant, and I could be
misinterpreting "requirement" for "setting" or some such, but I thought
worth noting...

Niall Litchfield wrote:
We've recently updated some of our RH database servers to kernel 2.4.21-53ELHugemem and have experienced problems with the databases and ASM instances crashing and huge numbers (like 80,000) yesterday on one box of core dumps. The crashes did not occur immediately after the kernel update, but that is AFAIK the only significant recent change. The head of the trace reads

SKGXPVFYMMTU: Could not create context which satisfies the minimum

MTU requirement of 32768 bytes

kgefec: fatal error 0

*** 2008-02-09 07:29:39.767

ksedmp: internal or fatal error

ORA-00603: ORACLE server session terminated by fatal error

ORA-27504: IPC error creating OSD context

ORA-27300: OS system dependent operation:sendmsg failed with status: 12

ORA-27301: OS failure message: Cannot allocate memory

ORA-27302: failure occurred at: sskgxpsnd1

which looks significantly like the issue addressed in Note 419871.1. to me. Has anyone else come across these issues?
Niall Litchfield
Oracle DBA
-- Received on Sun Feb 10 2008 - 09:59:44 CST

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