Hi all,<br><br>I try to use kernel 2.6.31.14 from the git with xen 4.0.2-rc3-pre.<br><br>I create tapdevice:<br># tapdisk2 -n aio:/root/discoteste <br>/dev/xen/blktap-2/tapdev0<br><br>And I try remove this device:<br># echo &quot;1&quot; &gt; /sys/class/blktap2/blktap0/remove <br>
And I cancel this:<br>^C-bash: echo: write error: Resource temporarily unavailable<br><br>In /var/log/messages:<br>Mar 23 14:09:23 tapdisk2[11178]: Created /dev/xen/blktap-2/control device <br>Mar 23 14:09:23 tapdisk2[11178]: Created /dev/xen/blktap-2/blktap0 device <br>
Mar 23 14:09:23 tapdisk2[11178]: Created /dev/xen/blktap-2/tapdev0 device <br>Mar 23 14:09:23 tapdisk2[11178]: new interface: ring: 251, device: 253, minor: 0 <br>Mar 23 14:09:23 tapdisk2[11178]: I/O queue driver: lio <br>
Mar 23 14:09:23 kernel: [ 3900.429698] blktap_sysfs_create: adding attributes for dev ffff88006f57f400<br>Mar 23 14:09:23 kernel: [ 3900.429763] blktap_control_allocate_tap: allocated tap ffff88006a9f9800<br>Mar 23 14:09:23 tapdisk2[11178]: block-aio open(&#39;/root/discoteste&#39;)<br>
Mar 23 14:09:23 tapdisk2[11178]: open(/root/discoteste) with O_DIRECT <br>Mar 23 14:09:23 tapdisk2[11178]: Image size:      pre sector_shift  [10736369664]     post sector_shift [20969472] <br>Mar 23 14:09:23 tapdisk2[11178]: opened image /root/discoteste (1 users, state: 0x00000001, type: 0) <br>
Mar 23 14:09:23 tapdisk2[11178]: VBD CHAIN: <br>Mar 23 14:09:23 tapdisk2[11178]: /root/discoteste: 0 <br>Mar 23 14:09:23 kernel: [ 3900.431130] blktap_ring_open: opening device blktap0<br>Mar 23 14:09:23 kernel: [ 3900.431137] blktap_ring_open: opened device 0<br>
Mar 23 14:09:23 kernel: [ 3900.431227] blktap_ring_mmap: blktap: mapping pid is 11178<br>Mar 23 14:09:23 kernel: [ 3900.431267] blktap_validate_params: aio:/root/discoteste: capacity: 20969472, sector-size: 512<br>Mar 23 14:09:23 kernel: [ 3900.431294] blktap_validate_params: aio:/root/discoteste: capacity: 20969472, sector-size: 512<br>
Mar 23 14:09:23 kernel: [ 3900.431316] blktap_device_create: minor 0 sectors 20969472 sector-size 512<br>Mar 23 14:09:23 kernel: [ 3900.431645] blktap_device_create: creation of 253:0: 0<br>Mar 23 14:09:56 kernel: [ 3931.416247] blktap_device_destroy: destroy device 0 users 0<br>
<br><br>When a DomU is destroy ( or shutdown), this tapdisk2 process keeps:<br># ps -ef |grep tapdisk<br>root     11178     1 98 14:09 pts/0    00:47:44 tapdisk2 -n aio:/root/discoteste<br><br>When I kill the tapdisk2 process this device is removed.<br>
<br>Is there a patch for this?<br><br>Thanks for any help.<br><br>-- <br>Roberto Scudeller<br><br><br>