similar to: RE: [PATCH] support HVM guests with more than 3.75G memory

Can you please check the vcpu status? I suspect one of the vcpu is blocked by halt instruction. Thanks Yunhong Jiang >-----Original Message----- >From: xen-devel-bounces@lists.xensource.com >[mailto:xen-devel-bounces@lists.xensource.com] On Behalf Of Tim Deegan >Sent: 2006年10月5日 23:55 >To: Li, Xin B >Cc: xen-devel@lists.xensource.com >Subject: Re: [Xen-devel] [PATCH] add

Hello, The fast emulation path patch introduced a bug when we have an event injection during a write to a pagetable: after removing shadows we still jump to the done label, releasing the lock even if we aren''t grabbing it. Inline patch fixes this. Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com> diff -r 8848d9e07584 xen/arch/x86/mm/shadow/multi.c ---

The patch deals with the situation which guest OS uses unused page table pages as data pages and write data to them. The pages will still be grabbed by Xen as page table pages, and lots of unnecessary page faults occur. The patch will check if the data guest writes to the page table contains valid mfn or not, if not, we believe it is a data page now and then unshadow the page. The patch

Package: xen-hypervisor-4.0-amd64 Version: 4.0.1-1 Severity: grave Tags: squeeze sid Justification: causes non-serious data loss Live migration of a guest (running CentOS 5.5, Paravirtualized) crashes the target-host (Hardware: Dell R610, 2x Xeon 5620, 16Gb RAM, Perc/700-Raid) (XEN) ----[ Xen-4.0.1 x86_64 debug=n Not tainted ]---- (XEN) CPU: 9 (XEN) RIP: e008:[<ffff82c4801151f6>]

http://bugs.freedesktop.org/show_bug.cgi?id=11655 Summary: Display corruption on 7600GO Product: xorg Version: git Platform: x86-64 (AMD64) OS/Version: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org ReportedBy:

I installed a 32 bit Windows 2003 enterprise edtion domU. xm list shows the domU has 7G RAM. But Windows 2003 shows only 3.75G RAM. I do not know what''s wrong. Anyone knows? [root@sjd-hot w2k3e]# xm info host : sjd-hot.rashost.com release : 2.6.18.8-xen version : #1 SMP Fri Nov 27 03:53:01 UTC 2009 machine : x86_64 nr_cpus

I am having reports of PCI passthrough problems with SR-IOV, in particular it looks like we are hitting the warning at msi:635 and msi:648 in xen; see the following log: (XEN) [VT-D]iommu.c:1785: VT-d page table not sharing with EPT table xenbus dev backend/vbd/1/5696 error 6 opening device (XEN) PCI add Virtual Function 04:1a.0 (XEN) HVM1: HVM Loader (XEN) HVM1: Detected Xen v4.1.0.rc2.pre (XEN)

>>What kinds of things are going to be added? ''platform.h'' is vague >>enough it could end up a dumping ground for all kinds of crud. >> > >To support HVM guest with RAM above 4G physical address space, we need >define a constant HVM_RAM_LIMIT_BELOW_4G, and physical address space >from HVM_RAM_LIMIT_BELOW_4G to 4G is reserved for PCI device MMIO use.

https://bugzilla.netfilter.org/show_bug.cgi?id=1735 Bug ID: 1735 Summary: Adding nftables interval sets progressively gets slower and makes the nft CLI less responsive with each added set Product: nftables Version: 1.0.x Hardware: All OS: All Status: NEW Severity:

Hi, I am trying to use active record calculations to perform two calculations. 1. Get the sum for each group. 2. Of those groups, find the maximum number of that sum I have the first step done, I just can''t figure out the second step. Any ideas? Here is what I have right now: @total_points = BlahPoint.sum(''value'', :group => ''blah_id'') Then

Hi, all Those days, we spent some efforts to check severe error handling (panic, BUG_ON, BUG, ASSERT) in XEN. We have several round internal discussions as well as several mail threads with Keir. Below is the discussion writeup. If agreed, after review, we want to place it in XEN document folder or XEN wiki since we think it might be helpful to developers. Thanks a lot for your help! Regards,

Hi all, I''m not sure if this would be the right place to ask this since it''s about xenserver, still I want to exploit any help I can get ;) The Problem:As it turns out I can run 2 VM''s with passedthrough pci devices without any problems, but when I try to start a third one I get the "Internal error: xenopsd internal error: Xenctrl.Error("14: Bad

[PATCH 4/4] HVM save/restore clean up: enable 64 guest on 64 HV Signed-off-by: Zhai Edwin <edwin.zhai@intel.com> remove the assumption that sh_update_paging_modes only occur on current vcpu. 64b guest can be save/restored on 64b HV with this. need reconsider it for security. diff -r a4373c8e7e2d xen/arch/x86/mm/shadow/common.c --- a/xen/arch/x86/mm/shadow/common.c Fri Jan 19 19:40:12 2007

Hello All, I''m contemplating ways to avoid the domain_crash() in mm.c line ~615 without requiring new OS hooks. This crash occurs when the operating system writes a zero to the PTE for a grant mapping without an explicit Xen call to unmap. In hacking around, it seems the problem is this: When the mapping PTE gets squashed, Xen''s cleanup_writable_pagetable() has no way to find

I was trying to install Ubuntu 7.10 on an HVM domain, when when the install kept hanging at a particular point. xm dmesg shows the following : (XEN) realmode.c:132:d28 Failed to emulate insn. (XEN) realmode.c:174:d28 Real-mode emulation failed @ 0000:00007f34: 0f 2c 06 08 6b 04 (XEN) domain_crash called from realmode.c:175 (XEN) Domain 28 (vcpu#0) crashed on cpu#0: (XEN) ----[ Xen-3.4-unstable

Now that x86-64 has directly accessible percpu variables, it can also implement the direct versions of these operations, which operate on a vcpu_info structure directly embedded in the percpu area. In fact, the 64-bit versions are more or less identical, and so can be shared. The only two differences are: 1. xen_restore_fl_direct takes its argument in eax on 32-bit, and rdi on 64-bit.

Hi,Chris? I wonder which version of Xen did the para-Linux works with. I applied the patches, compiled them and tried them on both xen-3.0.2 and the latest xen-unstable. Both result in panics when booting Xen and complain as follows: (XEN) Domain 0 kernel supports features = { 00000005 }. (XEN) Domain 0 kernel requires features = { 00000005 }. (XEN) (XEN)

This is release 0.9.58 of Wine, a free implementation of Windows on Unix. What's new in this release (see below for details): - The default version is now Windows XP. - Many Richedit improvements. - Beginning of jscript dll support. - Shell folders now respect XDG directory configuration. - Many translation updates. - Lots of bug fixes. Because of lags created by using mirrors,

The hvm domain which is being debugged sometimes crashes with the following message: (XEN) Failed vm entry (exit reason 0x80000021) caused by invalid guest state (0). (XEN) ************* VMCS Area ************** (XEN) *** Guest State *** (XEN) CR0: actual=0x000000008005003b, shadow=0x000000008005003b, gh_mask=ffffffffffffffff ...[snip]... (XEN) DebugCtl=0000000000000000

With pretty trivial user mode programs being able to crash the kernel due to the ref counter widths in Xen being more narrow than in Linux, I started an attempt to put together a kernel side fix. While addressing the plain hypercalls is pretty strait forward, dealing with multicalls (both when using them for lazy mmu mode batching and when explicitly using them in e.g. netback - the backends are