-----Original Message----- From: xen-users-bounces@lists.xensource.com [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Adrian Chadd Sent: 07 November 2006 13:37 To: fedora-xen@redhat.com Cc: xen-users@lists.xensource.com Subject: [Xen-users] memory issues with FC5.2200 kernels
hiya,
I've just upgraded a production Xen to FC5.2200 + the Xen userspace stuff and its exhibiting some nasty problems. A couple of hours uptime is followed by all domU networking stopping.
Here's dmesg in dom0:
xen_net: Memory squeeze in netback driver. printk: 4 messages suppressed. xen_net: Memory squeeze in netback driver. printk: 4 messages suppressed.
And xm dmesg:
(XEN) (file=memory.c, line=66) Could not allocate order=0 extent: id=0 memflags=0 (0 of 63) (XEN) (file=memory.c, line=66) Could not allocate order=0 extent: id=0 memflags=0 (0 of 63) (XEN) (file=memory.c, line=66) Could not allocate order=0 extent: id=0 memflags=0 (0 of 63) (XEN) (file=memory.c, line=66) Could not allocate order=0 extent: id=0 memflags=0 (0 of 63) (XEN) (file=memory.c, line=66) Could not allocate order=0 extent: id=0 memflags=0 (0 of 63)
It is trying to allocate one page in "increase_reservation", and failing...
I don't know WHY this is failing (I suspect the heap may have a memory leak, perhaps)?
What is your DomU doing when you see this problem?
-- Mats
Googling has shown inconclusive results - a couple of possible fixes but no explanation why (and no consistent fix.)
Any ideas?
Thanks,
Adrian
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