xen May 2016

xen@lists.fedoraproject.org

5 participants
4 discussions

Xen utilities hanging on Fedora 24
by W. Michael Petullo 31 May '16

31 May '16

Has anyone else seen things like "xl list" or xentop hang on Fedora 24? # rpm -q kernel xen kernel-4.5.5-300.fc24.x86_64 xen-4.6.1-10.fc24.x86_64 Running "strace xl list" produces the following, which seems to indicate that the hang occurs when "xl list" writes to /dev/xen/xenbus: access("/dev/xen/xenbus", F_OK) = 0 stat("/dev/xen/xenbus", {st_mode=S_IFCHR|0600, st_rdev=makedev(10, 62), ...}) = 0 open("/dev/xen/xenbus", O_RDWR) = 6 open("/etc/xen/xl.conf", O_RDONLY) = 7 fstat(7, {st_mode=S_IFREG|0644, st_size=33, ...}) = 0 fstat(7, {st_mode=S_IFREG|0644, st_size=33, ...}) = 0 read(7, "vif.default.script = \"vif-ethos\""..., 4096) = 33 close(7) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc79e90) = 262150 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_LOCKED, -1, 0) = 0x7fef0d788000 madvise(0x7fef0d788000, 4096, MADV_DONTFORK) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc79e90) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc79e90) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc79e90) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc79e90) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc79e90) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc79e90) = 4096 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc79e90) = 0 mmap(NULL, 102400, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_LOCKED, -1, 0) = 0x7fef0d76f000 madvise(0x7fef0d76f000, 102400, MADV_DONTFORK) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc61c70) = 0 madvise(0x7fef0d76f000, 102400, MADV_DOFORK) = 0 munmap(0x7fef0d76f000, 102400) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_LOCKED, -1, 0) = 0x7fef0d786000 madvise(0x7fef0d786000, 8192, MADV_DONTFORK) = 0 ioctl(5, _IOC(0, 0x50, 0x00, 0x30), 0x7ffdafc60c70) = 0 madvise(0x7fef0d786000, 8192, MADV_DOFORK) = 0 munmap(0x7fef0d786000, 8192) = 0 fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 4), ...}) = 0 write(1, "Name "..., 73Name ID Mem VCPUs State Time(s) ) = 73 rt_sigaction(SIGPIPE, {SIG_IGN, [], SA_RESTORER, 0x7fef0ca7cc10}, {SIG_DFL, [], 0}, 8) = 0 write(6, "\2\0\0\0\0\0\0\0\0\0\0\0\25\0\0\0", 16) = 16 write(6, "/local/domain/0/name\0", 21 # [ HANGS HERE. ] -- Mike :wq

3 3

Supported file-backed disk formats
by W. Michael Petullo 30 May '16

30 May '16

What file-backed disk formats are supported by Xen using a Fedora Dom0? I am testing xen-4.6.1-8.fc24.x86_64, and I have not been able to get the "qcow2" and "vhd" formats to work. "Qcow" version 1 works fine with: disk = [ "tap2:qcow:/var/lib/xen/images/test-data.xen-qcow,xvdb,w" ] However, when I try qcow2, the VM detects the disk, but "fdisk /dev/sdb" says: fdisk: cannot open /dev/sdb: No such file or directory When I try vhd, the VM kernel does not even detect the disk. -- Mike :wq

2 1

Fw: new message
by admin＠hkug.org 15 May '16

15 May '16

Hello! You have a new message, please read <http://kattennaam.nl/contrast.php?nplvq> admin(a)hkug.org

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Fw: new message
by admin＠hkug.org 15 May '16

15 May '16

Hello! You have a new message, please read <http://ww2.myschoolactivity.com/remember.php?j3jo> admin(a)hkug.org

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xen May 2016