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| Title: | DIGITAL UNIX (FORMERLY KNOWN AS DEC OSF/1) |
| Notice: | Welcome to the Digital UNIX Conference |
| Moderator: | SMURF::DENHAM |
|
| Created: | Thu Mar 16 1995 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 10068 |
| Total number of notes: | 35879 |
8583.0. "Constant memory leak via MBUF's and MBLK s, Unix 3.2g with many patches." by NETRIX::"[email protected]" (Sri) Fri Jan 24 1997 12:46
Hi,
One of our customer running AlphaServer 1000A running 3.2g
Digital UNIX. He has currently installed many relevant patches.,
upgraded to 5.0G ECO-1 kit of PathWorks. His kernel leaks memory
via MBUF and MBLK., main culprit being MBUF which is increasing
at a rate of 10 MB a day constatly. After 20 days are so all
the available 245 MEg is allocated to kernel and system will
be hung. Becuase of its steady and constant growth., commands
like "ps augx" are hanging becuase apparantly they couldn't
allocate a larger block in performing table call.,
when so much leak is going on.
vmstat -M shows a constant increase in MBUFs at a rate about 10 Meg
a day. Customer also has similar systems at some other sites
which are OK. This system runs nothing but PathWorks (not even
interactive logins)..
For various Political/Sensitivity reasons., customer can't
force a crash dump., rather inclined to power-cycle the system.
Any tips/suggestions on where to go would be much help.
Are we aware of any such memory leaks in 3.2g not released
in generic patches yet?
Regards
-Sri
[Posted by WWW Notes gateway]
| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 8583.1 | Please check RANGER::PWOSF | NETRIX::"[email protected]" | Brian Haley | Fri Jan 24 1997 15:23 | 8 |
| Hi,
Have you searched in the Pathworks conference? I think it's at RANGER::PWOSF.
Since only this machine is exhibiting the problem, and not the non-Pathworks
ones, that's a better place to start.
-Brian
[Posted by WWW Notes gateway]
|
| 8583.2 | Some example vmstat output's depicting the memory leak | NETRIX::"[email protected]" | Sri | Fri Jan 31 1997 17:14 | 36 |
| 256Meg RAM and 1000A running 3.2g Unix
=======================================
Uptime: 2 days:
bucket# element_size elements_in_use elements_free bytes_in_use
1...
7 256 123589 27 31638784
8..
Total memory being used from buckets = 39258704 bytes
Total free memory in buckets = 1317872 bytes
MBLK = 31537664 MBLKDATA = 3935392
System is 2100 4/200 running 3.2f Unix
======================================
bucket# element_size elements_in_use elements_free bytes_in_use
7 256 44749 51 11455744
Total memory being used from buckets = 16254928 bytes
Total free memory in buckets = 631504 bytes
Memory usage by type: Type and Number of bytes being used
MBUF = 19456 MCLUSTER = 32768 SOCKET = 16128
PCB = 19104 ROUTETBL = 1376 IFADDR = 1280
MBLK = 11346688 MBLKDATA = 1411424 STRHEAD = 32768
Regards
-Sri
[email protected]
[Posted by WWW Notes gateway]
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