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- Newsgroups: comp.sys.next.sysadmin
- Path: sparky!uunet!cs.utexas.edu!tamsun.tamu.edu!lusty.tamu.edu!lusty
- From: lusty@lusty.tamu.edu (Lusty Wench)
- Subject: Re: Rebooting (was Re: help! /private/vm/swapfile 44MB. How to shrink it?)
- Message-ID: <1992Sep12.155939.3988@tamsun.tamu.edu>
- Sender: news@tamsun.tamu.edu (Read News)
- Organization: Me
- References: <1992Sep8.190721.4559@leland.Stanford.EDU> <1992Sep11.093740.288@gamelan>
- Date: Sat, 12 Sep 1992 15:59:39 GMT
- Lines: 26
-
- In article <1992Sep11.093740.288@gamelan> thf@zelator.in-berlin.de (Thomas Funke) writes:
- >
- >Setting a highwater mark for the swapfile is'nt very recommendable: It will
- >crash (stop) the NeXT if the mark is reached. How do other UNIX-systems
- >handle this ? AIX starts killing processes, if there is not enough
- >paging-space. But still the system is usable.
- >
-
- Here's my horror story:
- My machine locked up because the swapfile filled up the available space,
- so I rebooted, only to discover that for some reason the swapfile had *not*
- been removed, and the machine would not reboot. Being a unix novice, I
- spent several hours figuring out and fixing the whole mess. First, I found
- that the reboot had not removed the old swapfile as expected. No problem,
- I'll just remove it. Unfortunately, at the point in the boot process that
- I had access to do such things the file system was mounted as read-only.
- It tookquite a while to figure that out, then another while to discover
- the remount command (i think that was it), finally remove the swapfile,
- and reboot successfully. This whole process was hampered by the fact that,
- since the filesystem was completely full, I was unable to read any man
- page that had not been previously read (i.e., formatted). Luckily I had
- read the man page for mount, or no telling how long it would have taken
- to figure out the whole deal. Anyway, after this happened I set a highwater
- mark and I was *happy* that the next time the machine "only" locked up.
-
- Lusty Wench
-