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- From: olson@anchor.esd.sgi.com (Dave Olson)
- Subject: Re: panic faulting when out of memory
- Message-ID: <uh43lv0@zuni.esd.sgi.com>
- Sender: news@zuni.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- References: <Jan05.220529.70886@yuma.ACNS.ColoState.EDU>
- Distribution: usa
- Date: Wed, 6 Jan 93 04:04:58 GMT
- Lines: 41
-
- In <Jan05.220529.70886@yuma.ACNS.ColoState.EDU> jamison@yuma.ACNS.ColoState.EDU (Jamie Gulden) writes:
-
-
- | This probably isn't a bug but...
- |
- | Does IRIX (4.0.4) normally panic fault if it runs out of swap
- | space? I've got a short 5-7 line program that I try to find
- | out how much memory I can allocate and it keeps panic faulting.
- |
- | The syslog has a bunch of these:
- |
- | Jan 5 13:52:35 nagel unix: dks0d3s1: Swap out failed blkno 0x3C514 (page still in memory)
- | Jan 5 13:52:35 nagel unix:
- | Jan 5 13:52:35 nagel unix: dks0d3s1: Swap out failed blkno 0x3C834 (page still in memory)
- | Jan 5 13:52:35 nagel unix:
- | Jan 5 13:52:35 nagel unix: dks0d3s1: Swap out failed blkno 0x3CA9C (page still in memory)
- | Jan 5 13:56:53 nagel syslogd: restart
- |
- |
- | And then the system comes up with this:
- |
- | Jan 5 13:57:04 nagel syslogd: restart
- | Jan 5 13:57:05 nagel savecore: reboot after panic:
- | Jan 5 13:57:05 nagel PANIC: swapoutpts - i/o error in swap
- |
- |
- | So, is there a disk I/O problem, did we tell it to use more blocks
- | than there actually are, or something else I'm missing.
-
- It isn't an out of swap problem at all. There is a disk error
- of some kind, *or* you have somehow configured the system to believe
- that there is more swap space than will fit on that partition.
-
- There are a couple of places in the swapping code where the system
- is fully committed, and can't recover on an error; in most cases it
- will just kill the process that it was trying to swap (or retry it
- later).
- --
- Let no one tell me that silence gives consent, | Dave Olson
- because whoever is silent dissents. | Silicon Graphics, Inc.
- Maria Isabel Barreno | olson@sgi.com
-