[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] 5x dom0 memory increase from Xen/Linux 3.4/2.6.18 to 4.1/3.0.0
On 22/06/2011 15:39, Konrad Rzeszutek Wilk wrote: > On Wed, Jun 22, 2011 at 03:22:30PM +0100, Anthony Wright wrote: >> On 22/06/2011 14:32, Konrad Rzeszutek Wilk wrote: >>> On Wed, Jun 22, 2011 at 02:15:35PM +0100, Anthony Wright wrote: >>>> Maybe I'm misreading the output, but I couldn't see any numbers that >>>> look like memory being assigned. I've attached the dmesg output. Do I >>>> need to enable a CONFIG variable to get the output I need or am I >>>> missing something. >>> The memblock=debug should give you some idea of what is Reserved. The >>> Reserved includes memory that is allocated by boot-time services (P2M, >>> pagetables, NUMA) and by real reservations (for example ACPI space). >>> Using the 'memblock=debug' can give you an idea of what services are >>> reserving the most. Then we can narrow down who or what is eating the gobs >>> of memory. >>> >>> see the 'Memory: ".. numbers. Also you might want to eliminate >>> the balloon usage space algother by doing two things: >>> >>> Xen command line: dom0_mem=max:512MB >>> >>> Linux command line: mem=512MB >>> >>> That will effectivly remove any balloon space (so your Dom0 will _never_ >>> grow up). >> The problem is I can't see any lines in the kernel dmesg output >> (attached to previous email) that start "Memory: ", or anything else >> that looks hopeful. Is there anything else I should add to the command > dmesg | grep Memory: ? Ok, I'm being really thick here, but I can't get the Memory: lines to be output by the kernel. It looks like I can't get any KERN_INFO or KERN_DEBUG lines to be output no matter what I do to log level. I'm not much of a kernel hacker, but is there some debug code that I need to enable to get these messages? I've wandered through google, and the kernel code but I can't find anything obvious. thanks, Anthony. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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