Date: Wed, 23 May 2001 18:08:51 +1000 (EST) From: Bruce Evans <bde@zeta.org.au> To: Peter Wemm <peter@wemm.org> Cc: John Baldwin <jhb@FreeBSD.ORG>, current@FreeBSD.ORG, Alfred Perlstein <bright@rush.net> Subject: Re: HEADS UP: I broke swapping Message-ID: <Pine.BSF.4.21.0105231801170.66885-100000@besplex.bde.org> In-Reply-To: <20010523014814.4A2E2380A@overcee.netplex.com.au>
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On Tue, 22 May 2001, Peter Wemm wrote: > John Baldwin wrote: > > > If I have swap (i.e. I've run swapon on a swap partition) the program is kill > ed > > by the system fine. If I don't have swap, then both the memkill process adn > > the swapper process (proc0) are stuck in the "vmwait" wait channel used by > > VM_WAIT. Any ideas? > > This may not be a new problem. I have seen a lot of machines hit this > sort of thing at work. It can end up in the majority of processes on > the system in this state. des's adsp.c test program caused this here on a machine with 64MB RAM and 132MB swap. No progress was made killing `bigproc' because everything gets stuck on "vmwait". It is hard to see where the get stuck because the "vmwait" label is far from unique. It is used in both the vm_wait() and the vm_await() functions which are called from all over. Bruce To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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