Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-03-03 Thread Paolo Bonzini
Il 03/03/2014 02:58, Alexey Kardashevskiy ha scritto: On 03/02/2014 08:31 AM, Paolo Bonzini wrote: Il 01/03/2014 13:30, Alexey Kardashevskiy ha scritto: Corrupted DMA buffer is 0x e0 -- 0x7f15c313f000. The e1000 packet is at 0x12ffac2 -- 0x7f15c313eac2. (0x7f15c313f000 - 0x7f15c313eac2)

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-03-03 Thread Alexey Kardashevskiy
On 03/03/2014 07:33 PM, Paolo Bonzini wrote: Il 03/03/2014 02:58, Alexey Kardashevskiy ha scritto: On 03/02/2014 08:31 AM, Paolo Bonzini wrote: Il 01/03/2014 13:30, Alexey Kardashevskiy ha scritto: Corrupted DMA buffer is 0x e0 -- 0x7f15c313f000. The e1000 packet is at 0x12ffac2 --

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-03-03 Thread Paolo Bonzini
Il 03/03/2014 11:47, Alexey Kardashevskiy ha scritto: Sorry, I am not following you here. Does KVM map things not page-aligned? Look in exec.c for xen_enabled(). Xen's implementation of address_space_map/unmap is completely different. Honestly cannot see much difference in the current

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-03-03 Thread Don Slutz
On 03/03/14 05:47, Alexey Kardashevskiy wrote: On 03/03/2014 07:33 PM, Paolo Bonzini wrote: Il 03/03/2014 02:58, Alexey Kardashevskiy ha scritto: On 03/02/2014 08:31 AM, Paolo Bonzini wrote: Il 01/03/2014 13:30, Alexey Kardashevskiy ha scritto: Corrupted DMA buffer is 0x e0 --

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-03-03 Thread Alexey Kardashevskiy
On 03/04/2014 08:33 AM, Don Slutz wrote: On 03/03/14 05:47, Alexey Kardashevskiy wrote: On 03/03/2014 07:33 PM, Paolo Bonzini wrote: Il 03/03/2014 02:58, Alexey Kardashevskiy ha scritto: On 03/02/2014 08:31 AM, Paolo Bonzini wrote: Il 01/03/2014 13:30, Alexey Kardashevskiy ha scritto:

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-03-02 Thread Alexey Kardashevskiy
On 03/02/2014 08:31 AM, Paolo Bonzini wrote: Il 01/03/2014 13:30, Alexey Kardashevskiy ha scritto: Corrupted DMA buffer is 0x e0 -- 0x7f15c313f000. The e1000 packet is at 0x12ffac2 -- 0x7f15c313eac2. (0x7f15c313f000 - 0x7f15c313eac2) = 0x53e which is less than 0x5aa and (0x5aa -

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-03-01 Thread Alexey Kardashevskiy
On 02/24/2014 03:20 PM, Alexey Kardashevskiy wrote: On 02/16/2014 03:29 PM, Hoyer, David wrote: We are using Qemu-1.7.0 with Xen-4.3.0 and Debian jessie. We are noticing that when we transfer large files from our network to the guestOS via the e1000 virtual network device that we

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-03-01 Thread Paolo Bonzini
Il 01/03/2014 13:30, Alexey Kardashevskiy ha scritto: Corrupted DMA buffer is 0x e0 -- 0x7f15c313f000. The e1000 packet is at 0x12ffac2 -- 0x7f15c313eac2. (0x7f15c313f000 - 0x7f15c313eac2) = 0x53e which is less than 0x5aa and (0x5aa - 0x53e) = 0x6c bytes get corrupted. I see here

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-02-24 Thread Paolo Bonzini
Il 16/02/2014 05:29, Hoyer, David ha scritto: We are using Qemu-1.7.0 with Xen-4.3.0 and Debian jessie. We are noticing that when we transfer large files from our network to the guestOS via the e1000 virtual network device that we experience memory corruption on the guestOS. We have

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-02-24 Thread Hoyer, David
Yes - we found this late last week and it did fix our issue. Thanks! -Original Message- From: Paolo Bonzini [mailto:paolo.bonz...@gmail.com] On Behalf Of Paolo Bonzini Sent: Monday, February 24, 2014 8:02 AM To: Hoyer, David; Qemu-devel@nongnu.org Cc: Moyer, Keith; Best, Tish Subject:

Re: [Qemu-devel] e1000 memory corruption in guest OS

2014-02-23 Thread Alexey Kardashevskiy
On 02/16/2014 03:29 PM, Hoyer, David wrote: We are using Qemu-1.7.0 with Xen-4.3.0 and Debian jessie. We are noticing that when we transfer large files from our network to the guestOS via the e1000 virtual network device that we experience memory corruption on the guestOS. We have

[Qemu-devel] e1000 memory corruption in guest OS

2014-02-15 Thread Hoyer, David
We are using Qemu-1.7.0 with Xen-4.3.0 and Debian jessie. We are noticing that when we transfer large files from our network to the guestOS via the e1000 virtual network device that we experience memory corruption on the guestOS. We have debugged this problem and have determined where it