Date: Mon, 14 Mar 2011 12:17:35 +0100 From: Mats Lindberg <mats.w.lindberg@gmail.com> To: freebsd-hackers@freebsd.org Subject: FreeBSD 6 vs 8.1 Message-ID: <AANLkTi=23g1%2BKv%2B4Pmda3-75-r13GaRFu1_Mtofej3RJ@mail.gmail.com>
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All I am migrating from FreeBSD 6.3 to FreeBSD 8.1 And I have noticed some, what I think is, strange behaviour. In FreeBSD 6.3 when I do > swapoff -a > dd if=/dev/zero of=/tmp/whatever bs=1G count=1 I get something like "out of memory - killed" In FreeBSD 8.1 doing the same - processes around start to die, e.g. all getty's are killed and finally devfs goes the same way. My target is diskless nfs mounted to a linux fileserver - hence no swap partition It does not seem to be relalted to the nfs root however - I get the same behaviour running FBSD-8.1 in a VMWARE server session. Is this a new 'feature' of FBSD or just a bug? Are there some sysctl's to set to 'really' turn of swapping. At one instance I also got a kernel panic saying 'page fault in kernel' but I'm having a hard time to repeat just that. regards Mats
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