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Re: [BUG] Consistent LBR/TSX vmentry failure (0x80000022) calling domain_crash() in vmx.c:3324

  • To: Elliot Killick <elliotkillick@xxxxxxxxxxx>
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Wed, 20 May 2020 12:27:49 +0100
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  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 20 May 2020 11:35:53 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 20/05/2020 12:20, Elliot Killick wrote:
> On 2020-05-20 11:10, Andrew Cooper wrote:
>> On 20/05/2020 11:33, Elliot Killick wrote:
>>> Hello,
>>> Xen is crashing Windows 10 (64-bit) VMs consistently whenever IDA
>>> Debugger
>>> (https://www.hex-rays.com/products/ida/support/download_freeware/)
>>> launches the Local Windows Debugger. The crash occurs when trying to
>>> launch the debugger against any executable (e.g. calc.exe) right at the
>>> time IDA says it is "Moving segment from <X address> to <Y address>".
>>> Tested on Windows 7, 8 and Linux as well but the bug is only triggered
>>> on Windows 10. Happens whether or not IDA is running with administrator
>>> privileges. No drivers/VM tools installed. Windows has a bug check code
>>> of zero, leaves no memory dump, nothing in the logs from QEMU in Dom0,
>>> the domain just powers off immediately leaving a record of the incident
>>> in the hypervisor.log. So, it does appear to be a Xen issue. Modern
>>> Intel CPU.
>>> Does anyone have some ideas on what may be causing this?
>> What exact CPU do you have?  This looks exactly like the
>> Haswell/Broadwell TSX errata.
>> ~Andrew
> i5-4590

How about the output of `head /proc/cpuinfo` in dom0?




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