Re: IPC shared memory error in DP 6.1 (9201 Views)
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Advisor
HP UX Admin
Posts: 23
Registered: ‎06-16-2010
Message 1 of 2 (9,201 Views)
Accepted Solution

IPC shared memory error in DP 6.1

Hi Guys,

I am getting the following error while taking backup in DP6.1
"IPC Cannot Free Shared Memory Segment."

It happends for only one filesystem in the server and remaining filesystems backup completed successfully.
Pls suggest me what would be the reason
Trusted Contributor
Danny Petterson - DK
Posts: 249
Registered: ‎02-09-2007
Message 2 of 2 (9,201 Views)

Re: IPC shared memory error in DP 6.1

You CAN try this below, it has worked for me - be careful though:

[Critical] From: BMA-NET@yourhost "drive1_at_yourhost" Time: 11-07-2007 10:57:51
Cannot allocate shared memory pool (IPC Cannot Create Shared Memory Segment
System error: [28] No space left on device
) => aborting
[Critical] From: BMA@yourhost"drive1_at_yourhost" Time: 11-07-2007 10:57:51
[90:24] Unexpected close reading NETIO message (Details unknown.) => aborting

Problem:
yourhost has one or more applications which does not clean up after themselves. Find larger memory-segments, which has no attached processes (NATTCH-column equals "0"), with the following command:

#ipcs -mob
IPC status from /dev/kmem as of Wed Jul 11 11:56:10 2007
T ID KEY MODE OWNER GROUP NATTCH SEGSZ
Shared Memory:
m 3429 0x6a5019ab --rw-rw-rw- root root 0 5243904
m 3630 0x6a5019ac --rw-rw-rw- root root 0 66560
m 6831 0x6a5019ad --rw-rw-rw- root root 0 66560
m 32 0x6a5019ae --rw-rw-rw- root root 0 66560
m 7033 0x6a5019af --rw-rw-rw- root root 0 66560
m 2434 0x6a5019b0 --rw-rw-rw- root root 0 66560
m 1035 0x6a5019b1 --rw-rw-rw- root root 0 5243904

Action:
Delete some of the big unattached memory-segments (where NATTACH=0):
#ipcrm -m 1035
#ipcrm -m 3429
etc....

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