search for: tapdev

...evel virtualization. With the previous knowledge of tapdisk, I have an assumption that, I may could use the vhd for each container to seperate the storage of all containers, or even in later days, vhd is stored in distributed storage, container could be migrated. Build filesystem on tapdev and mount it under some directory, put the rootfs of container into that dir, and start the lxc, I haven''t try this, will try later. I post my idea here, hope someone has one forsee comments. Thanks. --_03bf71ed-babc-49bf-a771-6d6657d47ac6_ Content-Ty...

...nst char *type; char *params, *devname = NULL; - int minor, err; + tap_list_t tap; + int err; type = libxl__device_disk_string_of_format(format); - minor = tap_ctl_find_minor(type, disk); - if (minor >= 0) { - devname = libxl__sprintf(gc, "/dev/xen/blktap-2/tapdev%d", minor); + err = tap_ctl_find(type, disk, &tap); + if (err == 0) { + devname = libxl__sprintf(gc, "/dev/xen/blktap-2/tapdev%d", tap.minor); if (devname) return devname; } @@ -49,3 +52,28 @@ const char *libxl__blktap_devpath(libxl_...

...using ssh, e.g.: ssh -f -o Tunnel=ethernet <server_ip> true I was wondering if there's a way to subsequently acquire the names of the local and remote tun/tap interfaces (e.g., using the default "-w any:any") for subsequent automatic tunnel configuration, e.g.: ip link set $TapDev up ip link set $TapDev master <client-or-server-side-bridge> Most examples out there pick something silly like "-w 5:5" then proceed to configure the hard-coded "tap5" on both client and server. However, that's unreliable -- what if "tap5" is already in use...

Hi: I''ve been thought this for a while, I want to build 1000 linux containeres in a HVM, and each container owns 1 block device, so there will 1000 tapdev and 1000 tapdisk process. My question is 1. How many devices domU support? 2. How many tapdev device blktap2 support? 3, Would it be a performance issue in this case? 4. Basically, I want each container''s data is write to different VHD file, since...

Make blktap support optional. Enable it by default on Linux, disable it on non-Linux. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach b. Muenchen Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen,

...nst char *type; char *params, *devname = NULL; - int minor, err; + tap_list_t tap; + int err; type = libxl__device_disk_string_of_format(format); - minor = tap_ctl_find_minor(type, disk); - if (minor >= 0) { - devname = libxl__sprintf(gc, "/dev/xen/blktap-2/tapdev%d", minor); + err = tap_ctl_find(type, disk, &tap); + if (err == 0) { + devname = libxl__sprintf(gc, "/dev/xen/blktap-2/tapdev%d", tap.minor); if (devname) return devname; } @@ -49,3 +52,28 @@ char *libxl__blktap_devpath(libxl__gc *g...

...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 properly terminate the tapdisk2 driver process which is spawned for a block device. With that patch applied we''ve isolated a problem which prevents the tapdev minor from being released. We tracked the problem down to what appears to be a livelock related to the unmapping of the ring memory by the tapdisk2 process. Most specificaly the following fragment in tapdisk-vbc:tapdisk_vbd_detach(): if (vbd->ring.mem > 0) munmap(vb...

Hi, Although Im dutch too, Ill write this in english. I got a similar problem then the one on the helpforum. Ill paste my setup first server tincd.conf ---- ListenPort = 8089 MyOwnVPNIP = 192.168.100.1/24 #VpnMask = 255.255.255.0 TapDevice = /dev/tap0 Passphrases=/usr/local/etc/tinc/passphrases server tapdev ---- tap0 Link encap:Ethernet HWaddr FE:FD:C0:A8:6F:01 inet addr:192.168.100.1 Bcast:192.168.100.255 Mask:255.255.255.0 UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packet...

...hen attempting to bringup the Windows domU. When the Windows domU VHD file was booting under Xen 4.0.0, I would get these messages in syslog: tapdisk2[4833]: Created /dev/xen/blktap-2/control device tapdisk2[4833]: Created /dev/xen/blktap-2/blktap0 device tapdisk2[4833]: Created /dev/xen/blktap-2/tapdev0 device tapdisk2[4833]: new interface: ring: 253, device: 253, minor: 0 tapdisk2[4833]: I/O queue driver: lio tapdisk2[4833]: /mnt/win2008sp2.vhd version: tap 0x00010003, b: 12800, a: 6903, f: 6087, n: 28330016 tapdisk2[4833]: opened image /mnt/win2008sp2.vhd (1 users, state: 0x00000001, type: 4) t...

...*******/ -static char *get_blktap2_device(libxl_ctx *ctx, +static char *get_blktap2_device(libxl_gc *gc, const char *name, const char *type) { int minor = tap_ctl_find_minor(type, name); if (minor < 0) return NULL; - return libxl_sprintf(ctx, "/dev/xen/blktap-2/tapdev%d", minor); + return libxl_sprintf(gc, "/dev/xen/blktap-2/tapdev%d", minor); } -static char *make_blktap2_device(libxl_ctx *ctx, +static char *make_blktap2_device(libxl_gc *gc, const char *name, const char *type) { char *params, *devname = NULL; int err; - p...