Re: [Qemu-devel] where can I find the latest memory hot plugging patch for Qemu?

[Kolk, G. van der]

Hi Igor,

Thanks for your reply. I guess I have it working right now. I was using an old 
patch, not the newest one. with v11 it’s working. Didn’t know how git and the 
branching stuff was working. now it works when booting with just 256MB of 
memory and extend it to what is necessary with the default(???) disk driver.

Sorry for the inconvenience.

Regards,

Gerrit 

On 19 Jun 2014, at 14:16 , Igor Mammedov <address@hidden> wrote:

> On Thu, 19 Jun 2014 10:28:41 +0000
> "Kolk, G. van der" <address@hidden> wrote:
> 
>> This is probably more helpful:
>> 
>> Hotplug Mem Device
>> init_memory_mapping: 0000000100000000-0000000140000000
>> 0100000000 - 0140000000 page 2M
>> [ffffea0003800000-ffffea00039fffff] PMD -> 
>> [ffff88000cc00000-ffff88000cdfffff] on node 0
>> [ffffea0003a00000-ffffea0003bfffff] PMD -> 
>> [ffff88000c800000-ffff88000c9fffff] on node 0
>> [ffffea0003c00000-ffffea0003dfffff] PMD -> 
>> [ffff88000c600000-ffff88000c7fffff] on node 0
>> [ffffea0003e00000-ffffea0003ffffff] PMD -> 
>> [ffff88000c000000-ffff88000c1fffff] on node 0
>> [ffffea0004000000-ffffea00041fffff] PMD -> 
>> [ffff88000be00000-ffff88000bffffff] on node 0
>> [ffffea0004200000-ffffea00043fffff] PMD -> 
>> [ffff88000ba00000-ffff88000bbfffff] on node 0
>> Built 1 zonelists in Node order, mobility grouping on.  Total pages: 96442
>> Policy zone: Normal
>> nommu_map_sg: overflow 13fc02000+4096 of device mask ffffffff
>> ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
>> ata1.00: failed command: WRITE DMA
>> ata1.00: cmd ca/00:10:f0:b3:53/00:00:00:00:00/e0 tag 0 dma 8192 out
>>         res 50/00:00:f0:b3:53/00:00:00:00:00/a0 Emask 0x40 (internal error)
>> ata1.00: status: { DRDY }
>> ata1.00: configured for MWDMA2
>> ata1: EH complete
> 
> it's know linux guest issue, see for workaround RHBZ 987871
> 
> alternatively you can start guest with 4Gb or more initial memory which also
> makes linux kernel work properly or switch disk to virtio driver.
> 
> [...]
> -- 
> Regards,
>  Igor