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To: amd64@freebsd.org
From: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=)
Date: Sun, 20 Feb 2005 14:55:21 +0100
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Subject: VM panics
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With recent -CURRENT, I get recurrent VM panics on amd64:

panic: mutex vm object not owned at /usr/src/sys/vm/vm_page.c:608

which corresponds to the following code at the beginning of in
vm_page_remove():

605:        mtx_assert(&vm_page_queue_mtx, MA_OWNED);
606:        if ((object =3D m->object) =3D=3D NULL)
607:                return;
608:        VM_OBJECT_LOCK_ASSERT(object, MA_OWNED);
609:        if (m->flags & PG_BUSY) {
610:                vm_page_flag_clear(m, PG_BUSY);
611:                vm_page_flash(m);

This only happens under load (e.g. buildworld).

Serial console does not work properly ("sio0: configured irq 3 not in
bitmap of probed irqs 0"), and I don't currently have a firewire
cable.

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no