similar to: tapdisk2 segfaults with xen-unstable+linux-2.6-pvops

Hi all, Suppose tapdisk2(a) serves Dom1, tapdisk2(b) serves Dom2, when both Dom1 and Dom2 are issuing random write requests, is it possible for tapdisk2(a) to dispatch requests both from Dom1 and Dom2? I hope not, but when I trace the I/O in Dom0, I notice that tapdisk2(a) dispatches requests from both guest domains. Is it common? I thought each tapdisk2 should only dispatch requests from its own

Hi there, I just found a segfaulting tapdisk2 process which led into a kernel oops. [1527071.169682] tapdisk2[26548]: segfault at 7fffd324cfe8 ip 000000000040837f sp 00007fffd324cff0 error 6 in tapdisk2[400000+38000] [1527071.220104] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048 [1527071.220170] IP: [<ffffffff810ce73c>] apply_to_page_range+0x47/0x2f3

I have a problem that tap:tapdisk:vhd:... is never actually plugged in. What can be the reason of such a thing happening? John _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hi all, as promised I run some simple benchmarks using tapdisk2 and the new qemu as disk backends. If you are in a hurry skip to the last section to see the test results. SOFTWARE REQUIREMENTS --------------------- In order to reproduce these results you need to use the new qemu with linux aio and O_DIRECT as disk backend: - apply the libxl patches that Anthony sent to the list a little while

Have an interesting one here, originally found on xen 4.1.0 but just upgraded to xen 4.1.1 and it''s still here. Creating a VM with a tap2 device pointed at /dev/mapper/something, when that device doesn''t exist, causes the tapdisk2 process to go into D mode and also manages to take out any process that queries it. For example, I have /dev/mapper/nathanxenuk1 as a valid disk

stubdom: rename the ioemu-dm domain config file to domainname-dm, which is shorter, makes more sense, and sorts better. diff -r c9b516a77927 stubdom/README --- a/stubdom/README Mon Aug 04 11:29:45 2008 +0100 +++ b/stubdom/README Mon Aug 04 12:51:31 2008 +0100 @@ -10,6 +10,9 @@ of video memory for the HVM domain, you of video memory for the HVM domain, you need to avoid the need for ballooning,

Hi, When I do the "make install-tools" with xen-4.2-unstable, there are some errors about "warn_unused_result". Is it the error in code or the error in the compiling environment? Thank you so much. gcc -O1 -fno-omit-frame-pointer -m64 -g -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes -Wdeclaration-after-statement -D__XEN_TOOLS__ -MMD -MF .tapdisk-queue.o.d

Hi, I''m currently trying xen 4.1.1 with the 3.0.0-rc5 (heard that it now contains the xen code to run as front or back xen domain). Everything seems to run fine, except that I am trying since a few hours to mount a .vhd file in the dom0. What I tried so far: to create a blank vhd file (this is working): host# vhd-util create -n /storage/test.vhd -s 20G Then i try to mount the file

We''ve been working on getting XEN 4.1.2 validated for internal use and have run into what appears to be a livelock induced failure in properly freeing a blktap2 device. We ported the blktap2 driver from Dan Stodden''s GIT tree into 3.2.x which is a reasonably straight forward process. We are also running the toolchain with a patch which Ian Campbell posted in order to get xl to

Package: xen-utils-common Version: 4.0.0-1 Severity: normal I am also struggling with this. I got farther by creating a .sxp file (xmexample.hvm.cfg is from /usr/share/doc/xen-utils-common/examples): # xm create -n -f xmexample.hvm.cfg | tail -n +2 > xmexample.hvm.sxp (why xm create -n mixes diagnostics with the output of -n on stdout, I do not know) and then specifying it on the command

Hi all, I wonder where I can find that file mentioned in xmexample.vmx: kernel = "/usr/lib/xen/boot/vmxloader" I currently use debian from http://packages.debianbase.de/sarge/i386/xen3/, but this file is not included. Any hints? - Dietmar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

stubdom: add example config file Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com> diff -r e69570f85e85 tools/examples/stubdom-ExampleHVMDomain --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tools/examples/stubdom-ExampleHVMDomain Thu Jul 17 19:31:13 2008 +0100 @@ -0,0 +1,21 @@ +# Not to be started directly, +# See xmexample.hvm-stubdom and stubdom/README for more details

# HG changeset patch # User Ian Campbell <ian.campbell@citrix.com> # Date 1300271932 0 # Node ID 7e326d27d899a3133479c8b7c983f660cdeda48c # Parent f35234b6636a0410a7d5eaa409e98ebe59080e4f tools: do not link against unused libraries. A fair few things under tools link against libraries which they don''t even use. Most of this appears to come from copy-and-pasting previous Makefile

Hi, Just wondering if anyone can point me to the new locations for xen/next-3.0 repo? git.kernel.org doesn''t appear to be coming back up (http://www.theregister.co.uk/2011/09/06/linus_torvalds_dumps_kernel_for_github/) and the XenParavirtOps wiki page still refers to that. Searching the list didn''t seem to come up with anything. Thanks, Nathan -- Nathan

Get blktap2 running on pvops. This mainly adds eventfd support to the userland code. Based on some prior cleanup to tapdisk-queue and the server object. We had most of that in XenServer for a while, so I kept it stacked. 1. Clean up IPC and AIO init in tapdisk-server. [I think tapdisk-ipc in blktap2 is basically obsolete. Pending a later patch to remove it?] 2. Split tapdisk-queue into

Hello, I have been playing around with Remus on Xen 4.0.1, attempting to fail-over for an HVM domU. I''ve run into some problems that I think could be related to tapdisk2 and its interaction with how one sets up Remus disk replication in the domU config file. A few things I''ve noticed: -The tap:remus:backupHostIP:port|aio:imagePath notation does not work for me, although this

Hi, I have been trying to get Hyperthreading to work in a Windows HVM on Xen 4.1.2 as described in ''xmexample.hvm''. I think I have set it up correctly, but I can''t seem to get it to work. There is not much documentation on it and most topics are from years ago. I''m curious to know to whether this functionality is still supposed to work. I''m aware that

You''re right scout the last line. Out looks like xapi is waiting on tapdisk to plug a key into xenstore. Perhaps a udev rule problem? Perhaps someone who knows more about tapdisk than I well be able to diagnose this tomorrow. Mike Sent from Samsung tablet Sébastien RICCIO <sr@swisscenter.com> wrote: Of course, here it is attached. Last line seems interesting. However tapdisk2

[HVM] enable sound card support for qemu Signed-off-by: Edwin Zhai <edwin.zhai@intel.com> diff -r 2abb1c801ab7 tools/examples/xmexample.hvm --- a/tools/examples/xmexample.hvm Wed Jul 19 16:09:59 2006 +0800 +++ b/tools/examples/xmexample.hvm Thu Jul 20 21:19:07 2006 +0800 @@ -153,8 +153,8 @@ serial=''pty''