similar to: [PATCH 2/4] Out-of-sync L1 shadows: Fixup Tables

We recently observed a problem with Solaris HVM domains. The bug was seen was seen with a higher number of VCPUs (3 or more), and always had the same pattern: some memory was allocated in the guest, but the first reference caused it to crash with a fatal pagefault. However, on inspection of the page tables, the guests'' view of the pagetables was consistent: the page was present.

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 ---

Hello, In processors supporting VPID I think we should invalidate the VPID mapping in the TLB after a shadow invlpg (in case EPT is turned off). Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com> Gianluca _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Please add a test to http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ExecutionEngine/JIT/JITTest.cpp?view=markup verifying that recompileAndRelinkFunction() keeps working. Then this fix will look fine to me. On Tue, Dec 22, 2009 at 12:23 AM, Gianluca Guida <glguida at gmail.com> wrote: > On Tue, Dec 22, 2009 at 6:14 AM, Chris Lattner <clattner at apple.com> wrote: >>

On Tue, Dec 22, 2009 at 6:14 AM, Chris Lattner <clattner at apple.com> wrote: > On Dec 19, 2009, at 3:36 PM, Gianluca Guida wrote: >> Attached patch makes runJITOnFunction more reliable. > > When would MCI be null? Everytime you call recompileAndRelinkFunction. It calls runJITOnFunction without specifying the MCI argument, which get defaulted to NULL. Gianluca -- It was a

On Dec 19, 2009, at 3:36 PM, Gianluca Guida wrote: > Hello, > > JIT::recompileAndRelinkFunction's runJITOnFunction does not use the > MCI arg, causing null pointer deferences at every call. > > Attached patch makes runJITOnFunction more reliable. When would MCI be null? -Chris

Dear All: I am pretty new to xen-devel, please correct me in the following. Assume we have the following terms GPT: guest page table SPT: shadow page table (Question a) When guest OS is running, is it always using SPT for address translation? If it is the case, how does guest OS refer and modify its own GPT content? It seems that there is a page table entry in SPT for the GPT page. (Question

Hello, JIT::recompileAndRelinkFunction's runJITOnFunction does not use the MCI arg, causing null pointer deferences at every call. Attached patch makes runJITOnFunction more reliable. Thanks, Gianluca -- It was a type of people I did not know, I found them very strange and they did not inspire confidence at all. Later I learned that I had been introduced to electronic engineers.

= Linee guida per la modifica del Wiki di CentOS = Questa pagina contiene alcune linee guida per la modifica del Wiki. Poich? queste linee guida sono in divenire, ricordatevi di tornare su questa pagina ogni tanto. == Linee guida riguardo al markup del Wiki == * Usare link relativi invece che link assoluti o link liberi. I link relativi devono avere la forma seguente: {{{[:Percorso:Testo

Hi all, Recently, I read codes about the shadow page table. I''m wondering whether the kernel has provided the function to revoke write access of all the shadows of one domain. If you know one with this function, please tell me about it. Thanks. BTW, I have my own idea to implement this. My idea is as follows: void sh_revoke_write_access_all(struct domain *d) {

Hai,   There was an update on the samba packages. A few ctdb bugs where detected and fixed in these packages. The bug was reported here: https://bugzilla.samba.org/show_bug.cgi?id=13696 My change logs for this one, no big changes.  samba (2:4.9.3+nmu-1.1~deb9) stretch; urgency=medium  .    * resync debian default from Debian samba (2:4.9.2+dfsg-2)      - removed the CVE patches, already in

Hi. When I compiled xen-3.3-testing with DEBUG_TRACE_DUMP in xen/include/xen/lib.h turned on, I got some errors at SHADOW_PRINTK. The following patch will fix the arguments passed to SHADOW_PRINTK in xen/arch/x86/mm/shadow/common.c and xen/arch/x86/mm/shadow/multi.c. Although I haven''t tested, it is the same for xen-unstable.hg Thanks, Yoshi Signed-off-by: Yoshi Tamura

On Tue, Dec 22, 2009 at 5:51 PM, Jeffrey Yasskin <jyasskin at google.com> wrote: > Please add a test to > http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ExecutionEngine/JIT/JITTest.cpp?view=markup > verifying that recompileAndRelinkFunction() keeps working. Then this > fix will look fine to me. Here it is. Unfortunately I'm not exactly a C++ guy so I'm open to

Hi there again! I wanted to give a brief glimpse of the look of the new/customizable drop-shadows for compiz. In contrast to my earlier post today I currently follow the brute-force approach. 9 elements for the shadow... top-left top top-right left middle right bottom-left bottom bottom-right For the middle shadow-part there is a 2D-vector as parameter to allow growing or shrinking

Paravirt-ops guests which move the fixmap also end up moving the syscall = VDSO. This fails if it is prelinked at a fixed address, which is why = COMPAT_VDSO is broken under CONFIG_VMI (and also under CONFIG_XEN). = Several options are available to try to address this. Jan had cooked up = a patch for Xen that used build magic to find the parts of the VDSO that = need relocation. I

Paravirt-ops guests which move the fixmap also end up moving the syscall = VDSO. This fails if it is prelinked at a fixed address, which is why = COMPAT_VDSO is broken under CONFIG_VMI (and also under CONFIG_XEN). = Several options are available to try to address this. Jan had cooked up = a patch for Xen that used build magic to find the parts of the VDSO that = need relocation. I

hi, I''m developing my own 32-bit (no PAE) paravirtualized kernel for xen with Mini-OS as a starting point. I am currently working on process page table support (equivalent of arch/i386/mm/pgtable-xen.c) and mostly following Linux for the moment. I noticed that linux-2.6.18-xen never pins an L1 table (a pte), yet __pgd_pin() walks the page directory and gives up write access on the kernel

Sabato 20 e Domenica 21 Marzo 2004 Si svolgerà il Corso/Stage di Marketing e Pedagogia necessario per il rilascio del Credito Formativo valido per ottenere l'accesso all'esame di: Istruttore di Base Istruttore di Base MW Guida Equestre Ambientale Guida Equestre Ambientale MW IL CORSO E' APERTO A TUTTI Costo del Corso/Stage Euro 150 per l'intero modulo. Contattate Franco

hi, it seems I no longer need to pin l1 pages when running with writable page tables in xen-unstable -- e.g. I can now pin a l2 table without having pinned its l1 descendants first, without Xen complaining. Do I understand things correctly? thanks, Jacob _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

On Tue, Mar 21, 2017 at 1:37 AM, ıuoʎ <yonjah@gmail.com> wrote: > On Mon, Mar 20, 2017 at 9:58 PM, Timo Juhani Lindfors > <timo.lindfors@iki.fi> wrote: > > ıuoʎ <yonjah@gmail.com> writes: > >> I have a host running a few guests all configured to autostart. > >> I'm also using libvirt-guests to suspend the guests when the host > >>