Date: 03 Dec 1999 14:54:28 +0100 From: Kent Boortz <kent@erix.ericsson.se> To: freebsd-stable@freebsd.org Subject: Out of swap hangs machine Message-ID: <d2bt88ruy3.fsf@erix.ericsson.se>
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Maybe I'm a bit confused about the expected bahaviour but I was under the impression that running a program as an ordinary user is not supposed to make an Unix system unusable. That is what makes a big difference between Unix and operating systems like Windows98 or MacOS. I have had several crashes where I can't access my machine console, i.e. X-Windows has hung, I can't terminate X with ctrl-alt-backspace and I can't switch console with ctlr-alt-F1. The cause has been running an ordinary program, ImageMagick, with a rather large file reaching the swap space limit. In my /var/log/messages I can see Dec 1 01:48:48 lolo /kernel: swap_pager: out of swap space Dec 1 01:48:49 lolo /kernel: pid 34092 (montage), uid 825, was killed: out of swap space Dec 1 01:59:23 lolo /kernel: swap_pager: out of swap space Dec 1 02:00:27 lolo /kernel: pid 34113 (montage), uid 825, was killed: out of swap space Dec 1 02:00:29 lolo last message repeated 3 times Dec 1 02:07:27 lolo /kernel: swap_pager: out of swap space At this stage the machine is unusable and I had to reboot with the hardware switch, no more log entries. Dec 1 04:53:01 lolo /kernel: swap_pager: I/O error - pagein failed; blkno 856138, size 4096, error 22 Dec 1 04:53:01 lolo /kernel: vm_fault: pager read error, pid 544 (convert) I had to use the hardware switch this time as well, nothing more in the log. I run FreeBSD 3.3-STABLE #2 (cvsup 22 Nov) Could someone clearify this matter? Is it my setup that allow ordinary users too much freedom or is this a problem with FreeBSD? kent To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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