Hi, I patched the deb8u2 source with all four patches and built a new deb.
As two of the patches make some changes on the pcifront, I thought it could be a good idea to first upgrade the domU 'bug' with the new linux-image. domU 'bug' "uname -a": Linux bug 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u2a~test (2016-02-04) x86_64 GNU/Linux dom0 "uname -a": Linux dom0 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u2 (2016-01-02) x86_64 GNU/Linux At first, all seemed to be as expected. I still got the "Failed to obtain physical IRQ" as the dom0 is not upgraded with the new linux-image. But after a couple of minutes, I got "INFO: task khubd:205 blocked for more than 120 seconds." with a call trace in dmesg (and there is a new call trace periodically every 120 seconds). domU 'bug' "dmesg": [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.16.0-4-amd64 (debian-ker...@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.7-ckt20-1+deb8u2a~test (2016-02-04) [ 0.000000] Command line: root=/dev/xvda2 ro elevator=noop root=/dev/xvda2 ro [ 0.000000] ACPI in unprivileged domain disabled [ 0.000000] 1-1 mapping on 8000->100000 [ 0.000000] Set 1015808 page(s) to 1-1 mapping [ 0.000000] 1-1 mapping on 100000->8000000 [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] Xen: [mem 0x0000000000000000-0x000000000009ffff] usable [ 0.000000] Xen: [mem 0x00000000000a0000-0x00000000000fffff] reserved [ 0.000000] Xen: [mem 0x0000000000100000-0x0000000007ffffff] usable [ 0.000000] Xen: [mem 0x0000000008000000-0x00000000f1de3fff] unusable [ 0.000000] Xen: [mem 0x00000000f1de4000-0x00000000f1dedfff] ACPI data [ 0.000000] Xen: [mem 0x00000000f1dee000-0x00000000f7ffffff] reserved [ 0.000000] Xen: [mem 0x00000000fec00000-0x00000000feefffff] reserved [ 0.000000] Xen: [mem 0x00000000ff800000-0x00000000ffffffff] reserved [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] DMI not present or invalid. [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] AGP: No AGP bridge found [ 0.000000] e820: last_pfn = 0x8000 max_arch_pfn = 0x400000000 [ 0.000000] Base memory trampoline at [ffff88000009a000] 9a000 size 24576 [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] init_memory_mapping: [mem 0x07e00000-0x07ffffff] [ 0.000000] [mem 0x07e00000-0x07ffffff] page 4k [ 0.000000] BRK [0x01b02000, 0x01b02fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x04000000-0x07dfffff] [ 0.000000] [mem 0x04000000-0x07dfffff] page 4k [ 0.000000] BRK [0x01b03000, 0x01b03fff] PGTABLE [ 0.000000] BRK [0x01b04000, 0x01b04fff] PGTABLE [ 0.000000] BRK [0x01b05000, 0x01b05fff] PGTABLE [ 0.000000] BRK [0x01b06000, 0x01b06fff] PGTABLE [ 0.000000] BRK [0x01b07000, 0x01b07fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x00100000-0x03ffffff] [ 0.000000] [mem 0x00100000-0x03ffffff] page 4k [ 0.000000] RAMDISK: [mem 0x01f18000-0x04a4efff] [ 0.000000] NUMA turned off [ 0.000000] Faking a node at [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x07ffffff] [ 0.000000] NODE_DATA [mem 0x07fe7000-0x07febfff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00001000-0x00ffffff] [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00001000-0x0009ffff] [ 0.000000] node 0: [mem 0x00100000-0x07ffffff] [ 0.000000] On node 0 totalpages: 32671 [ 0.000000] DMA zone: 56 pages used for memmap [ 0.000000] DMA zone: 21 pages reserved [ 0.000000] DMA zone: 3999 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 392 pages used for memmap [ 0.000000] DMA32 zone: 28672 pages, LIFO batch:7 [ 0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org [ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs [ 0.000000] nr_irqs_gsi: 16 [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff] [ 0.000000] e820: [mem 0xf8000000-0xfebfffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on Xen [ 0.000000] Xen version: 4.4.1 (preserve-AD) [ 0.000000] setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 27 pages/cpu @ffff880007c00000 s80896 r8192 d21504 u2097152 [ 0.000000] pcpu-alloc: s80896 r8192 d21504 u2097152 alloc=1*2097152 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 32202 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: root=/dev/xvda2 ro elevator=noop root=/dev/xvda2 ro [ 0.000000] PID hash table entries: 512 (order: 0, 4096 bytes) [ 0.000000] xsave: enabled xstate_bv 0x3, cntxt size 0x240 [ 0.000000] AGP: Checking aperture... [ 0.000000] AGP: No AGP bridge found [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! [ 0.000000] Memory: 72396K/130684K available (5219K kernel code, 947K rwdata, 1836K rodata, 1204K init, 840K bss, 58288K reserved) [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU dyntick-idle grace-period acceleration is enabled. [ 0.000000] RCU restricting CPUs from NR_CPUS=512 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 [ 0.000000] NR_IRQS:33024 nr_irqs:256 16 [ 0.000000] xen:events: Using FIFO-based ABI [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [hvc0] enabled [ 0.000000] Xen: using vcpuop timer interface [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] tsc: Detected 2294.880 MHz processor [ 0.004000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4589.76 BogoMIPS (lpj=9179520) [ 0.004000] pid_max: default: 32768 minimum: 301 [ 0.004000] Security Framework initialized [ 0.004000] AppArmor: AppArmor disabled by boot time parameter [ 0.004000] Yama: disabled by default; enable with sysctl kernel.yama.* [ 0.004000] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.004000] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Mount-cache hash table entries: 512 (order: 0, 4096 bytes) [ 0.004000] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes) [ 0.004000] Initializing cgroup subsys memory [ 0.004000] Initializing cgroup subsys devices [ 0.004000] Initializing cgroup subsys freezer [ 0.004000] Initializing cgroup subsys net_cls [ 0.004000] Initializing cgroup subsys blkio [ 0.004000] Initializing cgroup subsys perf_event [ 0.004000] Initializing cgroup subsys net_prio [ 0.004000] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 0.004000] CPU: Physical Processor ID: 0 [ 0.004000] CPU: Processor Core ID: 1 [ 0.004000] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0 tlb_flushall_shift: 2 [ 0.035851] Freeing SMP alternatives memory: 20K (ffffffff81a1b000 - ffffffff81a20000) [ 0.039467] ftrace: allocating 21679 entries in 85 pages [ 0.048176] Performance Events: unsupported p6 CPU model 58 no PMU driver, software events only. [ 0.050760] x86: Booted up 1 node, 1 CPUs [ 0.050949] NMI watchdog: disabled (cpu0): hardware events not enabled [ 0.051055] devtmpfs: initialized [ 0.055826] pinctrl core: initialized pinctrl subsystem [ 0.056120] NET: Registered protocol family 16 [ 0.056143] xen:grant_table: Grant tables using version 1 layout [ 0.056167] Grant table initialized [ 0.056748] PCI: setting up Xen PCI frontend stub [ 0.056757] PCI: pci_cache_line_size set to 64 bytes [ 0.060893] ACPI: Interpreter disabled. [ 0.060924] xen:balloon: Initialising balloon driver [ 0.060946] xen_balloon: Initialising balloon driver [ 0.060946] vgaarb: loaded [ 0.060946] PCI: System does not support PCI [ 0.060946] PCI: System does not support PCI [ 0.060946] Switched to clocksource xen [ 0.066106] pnp: PnP ACPI: disabled [ 0.068130] NET: Registered protocol family 2 [ 0.068357] TCP established hash table entries: 1024 (order: 1, 8192 bytes) [ 0.068371] TCP bind hash table entries: 1024 (order: 2, 16384 bytes) [ 0.068379] TCP: Hash tables configured (established 1024 bind 1024) [ 0.068398] TCP: reno registered [ 0.068406] UDP hash table entries: 256 (order: 1, 8192 bytes) [ 0.068416] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes) [ 0.068467] NET: Registered protocol family 1 [ 0.068488] PCI: CLS 0 bytes, default 64 [ 0.068553] Unpacking initramfs... [ 0.111279] Freeing initrd memory: 44252K (ffff880001f18000 - ffff880004a4f000) [ 0.113621] platform rtc_cmos: registered platform RTC device (no PNP device found) [ 0.113824] RAPL PMU detected, hw unit 2^-16 Joules, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer [ 0.113861] microcode: CPU0 sig=0x306a9, pf=0x2, revision=0x19 [ 0.113914] microcode: Microcode Update Driver: v2.00 < tig...@aivazian.fsnet.co.uk>, Peter Oruba [ 0.114130] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.114158] audit: initializing netlink subsys (disabled) [ 0.114176] audit: type=2000 audit(1454626961.628:1): initialized [ 0.114464] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.114489] zbud: loaded [ 0.114637] VFS: Disk quotas dquot_6.5.2 [ 0.114650] Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.114703] msgmni has been set to 227 [ 0.115097] alg: No test for stdrng (krng) [ 0.115123] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252) [ 0.115164] io scheduler noop registered (default) [ 0.115169] io scheduler deadline registered [ 0.115195] io scheduler cfq registered [ 0.115253] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.115271] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.115301] intel_idle: does not run on family 6 model 58 [ 0.115590] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.115841] Linux agpgart interface v0.103 [ 0.115913] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 1.337539] i8042: No controller found [ 1.337715] mousedev: PS/2 mouse device common for all mice [ 1.398030] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 [ 1.398084] rtc_cmos: probe of rtc_cmos failed with error -38 [ 1.398117] ledtrig-cpu: registered to indicate activity on CPUs [ 1.398136] AMD IOMMUv2 driver by Joerg Roedel <joerg.roe...@amd.com> [ 1.398139] AMD IOMMUv2 functionality not available on this system [ 1.398235] TCP: cubic registered [ 1.398254] NET: Registered protocol family 10 [ 1.398432] mip6: Mobile IPv6 [ 1.398439] NET: Registered protocol family 17 [ 1.398448] mpls_gso: MPLS GSO support [ 1.398454] mce: Unable to init device /dev/mcelog (rc: -5) [ 1.398596] registered taskstats version 1 [ 1.398647] xenbus_probe_frontend: Device with no driver: device/vbd/51714 [ 1.398652] xenbus_probe_frontend: Device with no driver: device/vbd/51713 [ 1.398655] xenbus_probe_frontend: Device with no driver: device/vif/0 [ 1.398658] xenbus_probe_frontend: Device with no driver: device/pci/0 [ 1.398693] rtc_hctosys: unable to open rtc device (rtc0) [ 1.398742] PM: Hibernation image not present or could not be loaded. [ 1.399253] Freeing unused kernel memory: 1204K (ffffffff818ee000 - ffffffff81a1b000) [ 1.399263] Write protecting the kernel read-only data: 8192k [ 1.401793] Freeing unused kernel memory: 912K (ffff88000151c000 - ffff880001600000) [ 1.401905] Freeing unused kernel memory: 212K (ffff8800017cb000 - ffff880001800000) [ 1.420329] systemd-udevd[58]: starting version 215 [ 1.420858] random: systemd-udevd urandom read with 3 bits of entropy available [ 1.443892] xen_netfront: Initialising Xen virtual ethernet driver [ 1.511482] blkfront: xvda2: flush diskcache: enabled; persistent grants: enabled; indirect descriptors: enabled; [ 1.514156] blkfront: xvda1: flush diskcache: enabled; persistent grants: enabled; indirect descriptors: enabled; [ 2.104730] PM: Starting manual resume from disk [ 2.104745] PM: Hibernation image partition 202:1 present [ 2.104746] PM: Looking for hibernation image. [ 2.105114] PM: Image not found (code -22) [ 2.105118] PM: Hibernation image not present or could not be loaded. [ 4.299926] EXT4-fs (xvda2): mounted filesystem with ordered data mode. Opts: (null) [ 4.386272] random: nonblocking pool is initialized [ 5.569639] systemd[1]: systemd 215 running in system mode. (+PAM +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ -SECCOMP -APPARMOR) [ 5.569746] systemd[1]: Detected virtualization 'xen'. [ 5.569766] systemd[1]: Detected architecture 'x86-64'. [ 6.733819] systemd[1]: Inserted module 'autofs4' [ 6.750629] systemd[1]: Set hostname to <bug>. [ 9.533126] systemd[1]: Cannot add dependency job for unit dbus.socket, ignoring: Unit dbus.socket failed to load: No such file or directory. [ 9.533160] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory. [ 9.533670] systemd[1]: Starting Forward Password Requests to Wall Directory Watch. [ 9.533836] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ 9.533865] systemd[1]: Expecting device dev-hvc0.device... [ 9.534044] systemd[1]: Starting Remote File Systems (Pre). [ 9.534129] systemd[1]: Reached target Remote File Systems (Pre). [ 9.534183] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point. [ 9.534402] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ 9.534443] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch. [ 9.534524] systemd[1]: Started Dispatch Password Requests to Console Directory Watch. [ 9.534546] systemd[1]: Starting Paths. [ 9.534632] systemd[1]: Reached target Paths. [ 9.534661] systemd[1]: Starting Encrypted Volumes. [ 9.534741] systemd[1]: Reached target Encrypted Volumes. [ 9.534763] systemd[1]: Expecting device dev-xvda1.device... [ 9.534845] systemd[1]: Starting Root Slice. [ 9.534953] systemd[1]: Created slice Root Slice. [ 9.534977] systemd[1]: Starting User and Session Slice. [ 9.535108] systemd[1]: Created slice User and Session Slice. [ 9.535132] systemd[1]: Starting Delayed Shutdown Socket. [ 9.535538] systemd[1]: Listening on Delayed Shutdown Socket. [ 9.535565] systemd[1]: Starting /dev/initctl Compatibility Named Pipe. [ 9.535709] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe. [ 9.535733] systemd[1]: Starting Journal Socket (/dev/log). [ 9.535872] systemd[1]: Listening on Journal Socket (/dev/log). [ 9.535907] systemd[1]: Starting udev Kernel Socket. [ 9.536043] systemd[1]: Listening on udev Kernel Socket. [ 9.536073] systemd[1]: Starting udev Control Socket. [ 9.536187] systemd[1]: Listening on udev Control Socket. [ 9.536214] systemd[1]: Starting Journal Socket. [ 9.536351] systemd[1]: Listening on Journal Socket. [ 9.536388] systemd[1]: Starting System Slice. [ 9.536531] systemd[1]: Created slice System Slice. [ 9.536572] systemd[1]: Starting File System Check on Root Device... [ 9.538068] systemd[1]: Starting system-getty.slice. [ 9.538314] systemd[1]: Created slice system-getty.slice. [ 9.538341] systemd[1]: Starting system-serial\x2dgetty.slice. [ 9.538483] systemd[1]: Created slice system-serial\x2dgetty.slice. [ 9.538565] systemd[1]: Starting Increase datagram queue length... [ 9.542353] systemd[1]: Mounting POSIX Message Queue File System... [ 9.546880] systemd[1]: Mounting Debug File System... [ 9.578669] systemd[1]: Started Set Up Additional Binary Formats. [ 9.578747] systemd[1]: Mounting Huge Pages File System... [ 9.580657] systemd[1]: Starting Create list of required static device nodes for the current kernel... [ 9.587373] systemd[1]: Starting Load Kernel Modules... [ 9.589167] systemd[1]: Starting udev Coldplug all Devices... [ 9.590713] systemd[1]: Starting Slices. [ 9.590778] systemd[1]: Reached target Slices. [ 9.658770] systemd[1]: Started Increase datagram queue length. [ 9.659677] systemd[1]: Starting Syslog Socket. [ 9.659768] systemd[1]: Listening on Syslog Socket. [ 9.659794] systemd[1]: Starting Sockets. [ 9.659824] systemd[1]: Reached target Sockets. [ 9.659842] systemd[1]: Starting Journal Service... [ 9.661017] systemd[1]: Started Journal Service. [ 10.686460] systemd-udevd[137]: starting version 215 [ 11.087720] EXT4-fs (xvda2): re-mounted. Opts: errors=remount-ro [ 11.257117] systemd-journald[124]: Received request to flush runtime journal from PID 1 [ 12.525672] input: PC Speaker as /devices/platform/pcspkr/input/input0 [ 12.526446] pcifront pci-0: Installing PCI frontend [ 12.526468] xen:swiotlb_xen: Warning: only able to allocate 4 MB for software IO TLB [ 12.530788] software IO TLB [mem 0x02000000-0x02400000] (4MB) mapped at [ffff880002000000-ffff8800023fffff] [ 12.531162] pcifront pci-0: Creating PCI Frontend Bus 0000:00 [ 12.531224] pcifront pci-0: PCI host bridge to bus 0000:00 [ 12.531231] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 12.531236] pci_bus 0000:00: root bus resource [mem 0x00000000-0xfffffffff] [ 12.531242] pci_bus 0000:00: root bus resource [bus 00-ff] [ 12.531509] pci 0000:00:01.0: [1912:0014] type 00 class 0x0c0330 [ 12.531897] pci 0000:00:01.0: reg 0x10: [mem 0xfbff0000-0xfbff1fff 64bit] [ 12.536917] pci 0000:00:00.1: [14e4:165f] type 00 class 0x020000 [ 12.537273] pci 0000:00:00.1: reg 0x10: [mem 0xfabc0000-0xfabcffff 64bit pref] [ 12.537651] pci 0000:00:00.1: reg 0x18: [mem 0xfabb0000-0xfabbffff 64bit pref] [ 12.537903] pci 0000:00:00.1: reg 0x20: [mem 0xfaba0000-0xfabaffff 64bit pref] [ 12.539995] pcifront pci-0: New device on 0000:00:00.1 found. [ 12.542275] pcifront pci-0: claiming resource 0000:00:01.0/0 [ 12.542285] pcifront pci-0: claiming resource 0000:00:00.1/0 [ 12.542290] pcifront pci-0: claiming resource 0000:00:00.1/2 [ 12.542294] pcifront pci-0: claiming resource 0000:00:00.1/4 [ 12.542405] pci 0000:00:01.0: Xen PCI mapped GSI18 to IRQ29 [ 12.656749] alg: No test for crc32 (crc32-pclmul) [ 12.905693] intel_rapl: Found RAPL domain package [ 12.905708] intel_rapl: Found RAPL domain core [ 12.956320] Adding 262140k swap on /dev/xvda1. Priority:-1 extents:1 across:262140k SSFS [ 13.033326] pps_core: LinuxPPS API ver. 1 registered [ 13.033340] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giome...@linux.it> [ 13.034413] PTP clock support registered [ 13.107656] tg3.c:v3.137 (May 11, 2014) [ 13.107885] tg3 0000:00:00.1: Xen PCI mapped GSI17 to IRQ30 [ 13.120967] usbcore: registered new interface driver usbfs [ 13.121269] usbcore: registered new interface driver hub [ 13.121327] usbcore: registered new device driver usb [ 13.136707] tg3 0000:00:00.1 eth1: Tigon3 [partno(N/A) rev 5720000] (PCI Express) MAC address 34:64:a9:9a:a8:b1 [ 13.136726] tg3 0000:00:00.1 eth1: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1]) [ 13.136734] tg3 0000:00:00.1 eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1] [ 13.136740] tg3 0000:00:00.1 eth1: dma_rwctrl[00000001] dma_mask[64-bit] [ 13.143564] xen:events: xen_bind_pirq_gsi_to_irq: returning irq 29 for gsi 18 [ 13.143579] xhci_hcd 0000:00:01.0: Xen PCI mapped GSI18 to IRQ29 [ 13.143886] xhci_hcd 0000:00:01.0: xHCI Host Controller [ 13.143899] xhci_hcd 0000:00:01.0: new USB bus registered, assigned bus number 1 [ 13.150842] xen:events: Failed to obtain physical IRQ 31 [ 13.150863] xen:events: Failed to obtain physical IRQ 32 [ 13.150953] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 13.150961] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 13.150967] usb usb1: Product: xHCI Host Controller [ 13.150971] usb usb1: Manufacturer: Linux 3.16.0-4-amd64 xhci_hcd [ 13.150976] usb usb1: SerialNumber: 0000:00:01.0 [ 13.151281] hub 1-0:1.0: USB hub found [ 13.151303] hub 1-0:1.0: 2 ports detected [ 13.151437] xhci_hcd 0000:00:01.0: xHCI Host Controller [ 13.151446] xhci_hcd 0000:00:01.0: new USB bus registered, assigned bus number 2 [ 13.155915] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. [ 13.155962] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003 [ 13.155969] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 13.155975] usb usb2: Product: xHCI Host Controller [ 13.155979] usb usb2: Manufacturer: Linux 3.16.0-4-amd64 xhci_hcd [ 13.155984] usb usb2: SerialNumber: 0000:00:01.0 [ 13.157061] hub 2-0:1.0: USB hub found [ 13.157084] hub 2-0:1.0: 2 ports detected [ 240.060071] INFO: task khubd:205 blocked for more than 120 seconds. [ 240.060086] Not tainted 3.16.0-4-amd64 #1 [ 240.060090] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 240.060095] khubd D ffff880001d20e78 0 205 2 0x00000000 [ 240.060104] ffff880001d20a20 0000000000000246 0000000000012f00 ffff8800062f3fd8 [ 240.060112] 0000000000012f00 ffff880001d20a20 ffff880005dc8148 ffff8800062f3d00 [ 240.060119] ffff880005dc8140 ffff880001d20a20 0000000000000200 ffff880004f83c60 [ 240.060126] Call Trace: [ 240.060138] [<ffffffff8150f969>] ? schedule_timeout+0x229/0x2a0 [ 240.060146] [<ffffffff8118e5a8>] ? kfree+0x118/0x220 [ 240.060153] [<ffffffff815137c6>] ? _raw_spin_lock_irqsave+0x16/0x50 [ 240.060162] [<ffffffff81072d56>] ? lock_timer_base.isra.35+0x26/0x50 [ 240.060168] [<ffffffff810725da>] ? internal_add_timer+0x2a/0x70 [ 240.060174] [<ffffffff81074817>] ? mod_timer+0x127/0x1e0 [ 240.060180] [<ffffffff81510e68>] ? wait_for_completion+0xa8/0x120 [ 240.060188] [<ffffffff81096de0>] ? wake_up_state+0x10/0x10 [ 240.060198] [<ffffffffa0199ecc>] ? xhci_alloc_dev+0xac/0x250 [xhci_hcd] [ 240.060208] [<ffffffffa016378b>] ? usb_alloc_dev+0x6b/0x2f0 [usbcore] [ 240.060217] [<ffffffffa016a561>] ? hub_thread+0xcb1/0x1740 [usbcore] [ 240.060225] [<ffffffff810a7ba0>] ? prepare_to_wait_event+0xf0/0xf0 [ 240.060234] [<ffffffffa01698b0>] ? hub_port_debounce+0x130/0x130 [usbcore] [ 240.060242] [<ffffffff8108805d>] ? kthread+0xbd/0xe0 [ 240.060248] [<ffffffff81087fa0>] ? kthread_create_on_node+0x180/0x180 [ 240.060254] [<ffffffff81513c18>] ? ret_from_fork+0x58/0x90 [ 240.060260] [<ffffffff81087fa0>] ? kthread_create_on_node+0x180/0x180 [ 360.060060] INFO: task khubd:205 blocked for more than 120 seconds. [ 360.060075] Not tainted 3.16.0-4-amd64 #1 [ 360.060080] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 360.060086] khubd D ffff880001d20e78 0 205 2 0x00000000 [ 360.060095] ffff880001d20a20 0000000000000246 0000000000012f00 ffff8800062f3fd8 [ 360.060104] 0000000000012f00 ffff880001d20a20 ffff880005dc8148 ffff8800062f3d00 [ 360.060112] ffff880005dc8140 ffff880001d20a20 0000000000000200 ffff880004f83c60 [ 360.060119] Call Trace: [ 360.060131] [<ffffffff8150f969>] ? schedule_timeout+0x229/0x2a0 [ 360.060139] [<ffffffff8118e5a8>] ? kfree+0x118/0x220 [ 360.060145] [<ffffffff815137c6>] ? _raw_spin_lock_irqsave+0x16/0x50 [ 360.060155] [<ffffffff81072d56>] ? lock_timer_base.isra.35+0x26/0x50 [ 360.060161] [<ffffffff810725da>] ? internal_add_timer+0x2a/0x70 [ 360.060167] [<ffffffff81074817>] ? mod_timer+0x127/0x1e0 [ 360.060173] [<ffffffff81510e68>] ? wait_for_completion+0xa8/0x120 [ 360.060181] [<ffffffff81096de0>] ? wake_up_state+0x10/0x10 [ 360.060190] [<ffffffffa0199ecc>] ? xhci_alloc_dev+0xac/0x250 [xhci_hcd] [ 360.060200] [<ffffffffa016378b>] ? usb_alloc_dev+0x6b/0x2f0 [usbcore] [ 360.060209] [<ffffffffa016a561>] ? hub_thread+0xcb1/0x1740 [usbcore] [ 360.060217] [<ffffffff810a7ba0>] ? prepare_to_wait_event+0xf0/0xf0 [ 360.060225] [<ffffffffa01698b0>] ? hub_port_debounce+0x130/0x130 [usbcore] [ 360.060233] [<ffffffff8108805d>] ? kthread+0xbd/0xe0 [ 360.060239] [<ffffffff81087fa0>] ? kthread_create_on_node+0x180/0x180 [ 360.060245] [<ffffffff81513c18>] ? ret_from_fork+0x58/0x90 [ 360.060251] [<ffffffff81087fa0>] ? kthread_create_on_node+0x180/0x180 Next, I upgraded dom0 with the new linux-image deb and rebooted the machine. dom0 "uname -a": Linux dom0 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u2a~test (2016-02-04) x86_64 GNU/Linux domU 'bug' "uname -a": Linux bug 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u2a~test (2016-02-04) x86_64 GNU/Linux And now everything seems to work. No more "Failed to obtain physical IRQ", I can mount my usb flash stick using the passthroughed usb controller. No call traces in dmesg. domU 'bug' "dmesg": [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 3.16.0-4-amd64 (debian-ker...@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.7-ckt20-1+deb8u2a~test (2016-02-04) [ 0.000000] Command line: root=/dev/xvda2 ro elevator=noop root=/dev/xvda2 ro [ 0.000000] ACPI in unprivileged domain disabled [ 0.000000] 1-1 mapping on 8000->100000 [ 0.000000] Set 1015808 page(s) to 1-1 mapping [ 0.000000] 1-1 mapping on 100000->8000000 [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] Xen: [mem 0x0000000000000000-0x000000000009ffff] usable [ 0.000000] Xen: [mem 0x00000000000a0000-0x00000000000fffff] reserved [ 0.000000] Xen: [mem 0x0000000000100000-0x0000000007ffffff] usable [ 0.000000] Xen: [mem 0x0000000008000000-0x00000000f1de3fff] unusable [ 0.000000] Xen: [mem 0x00000000f1de4000-0x00000000f1dedfff] ACPI data [ 0.000000] Xen: [mem 0x00000000f1dee000-0x00000000f7ffffff] reserved [ 0.000000] Xen: [mem 0x00000000fec00000-0x00000000feefffff] reserved [ 0.000000] Xen: [mem 0x00000000ff800000-0x00000000ffffffff] reserved [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] DMI not present or invalid. [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable [ 0.000000] AGP: No AGP bridge found [ 0.000000] e820: last_pfn = 0x8000 max_arch_pfn = 0x400000000 [ 0.000000] Base memory trampoline at [ffff88000009a000] 9a000 size 24576 [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] init_memory_mapping: [mem 0x07e00000-0x07ffffff] [ 0.000000] [mem 0x07e00000-0x07ffffff] page 4k [ 0.000000] BRK [0x01b02000, 0x01b02fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x04000000-0x07dfffff] [ 0.000000] [mem 0x04000000-0x07dfffff] page 4k [ 0.000000] BRK [0x01b03000, 0x01b03fff] PGTABLE [ 0.000000] BRK [0x01b04000, 0x01b04fff] PGTABLE [ 0.000000] BRK [0x01b05000, 0x01b05fff] PGTABLE [ 0.000000] BRK [0x01b06000, 0x01b06fff] PGTABLE [ 0.000000] BRK [0x01b07000, 0x01b07fff] PGTABLE [ 0.000000] init_memory_mapping: [mem 0x00100000-0x03ffffff] [ 0.000000] [mem 0x00100000-0x03ffffff] page 4k [ 0.000000] RAMDISK: [mem 0x01f18000-0x04a4efff] [ 0.000000] NUMA turned off [ 0.000000] Faking a node at [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Initmem setup node 0 [mem 0x00000000-0x07ffffff] [ 0.000000] NODE_DATA [mem 0x07fe7000-0x07febfff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x00001000-0x00ffffff] [ 0.000000] DMA32 [mem 0x01000000-0xffffffff] [ 0.000000] Normal empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x00001000-0x0009ffff] [ 0.000000] node 0: [mem 0x00100000-0x07ffffff] [ 0.000000] On node 0 totalpages: 32671 [ 0.000000] DMA zone: 56 pages used for memmap [ 0.000000] DMA zone: 21 pages reserved [ 0.000000] DMA zone: 3999 pages, LIFO batch:0 [ 0.000000] DMA32 zone: 392 pages used for memmap [ 0.000000] DMA32 zone: 28672 pages, LIFO batch:7 [ 0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org [ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs [ 0.000000] nr_irqs_gsi: 16 [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff] [ 0.000000] e820: [mem 0xf8000000-0xfebfffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on Xen [ 0.000000] Xen version: 4.4.1 (preserve-AD) [ 0.000000] setup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 27 pages/cpu @ffff880007c00000 s80896 r8192 d21504 u2097152 [ 0.000000] pcpu-alloc: s80896 r8192 d21504 u2097152 alloc=1*2097152 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 32202 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: root=/dev/xvda2 ro elevator=noop root=/dev/xvda2 ro [ 0.000000] PID hash table entries: 512 (order: 0, 4096 bytes) [ 0.000000] xsave: enabled xstate_bv 0x3, cntxt size 0x240 [ 0.000000] AGP: Checking aperture... [ 0.000000] AGP: No AGP bridge found [ 0.000000] Calgary: detecting Calgary via BIOS EBDA area [ 0.000000] Calgary: Unable to locate Rio Grande table in EBDA - bailing! [ 0.000000] Memory: 72396K/130684K available (5219K kernel code, 947K rwdata, 1836K rodata, 1204K init, 840K bss, 58288K reserved) [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU dyntick-idle grace-period acceleration is enabled. [ 0.000000] RCU restricting CPUs from NR_CPUS=512 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 [ 0.000000] NR_IRQS:33024 nr_irqs:256 16 [ 0.000000] xen:events: Using FIFO-based ABI [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [hvc0] enabled [ 0.000000] Xen: using vcpuop timer interface [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] tsc: Detected 2294.850 MHz processor [ 0.004000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4589.70 BogoMIPS (lpj=9179400) [ 0.004000] pid_max: default: 32768 minimum: 301 [ 0.004000] Security Framework initialized [ 0.004000] AppArmor: AppArmor disabled by boot time parameter [ 0.004000] Yama: disabled by default; enable with sysctl kernel.yama.* [ 0.004000] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes) [ 0.004000] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Mount-cache hash table entries: 512 (order: 0, 4096 bytes) [ 0.004000] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes) [ 0.004000] Initializing cgroup subsys memory [ 0.004000] Initializing cgroup subsys devices [ 0.004000] Initializing cgroup subsys freezer [ 0.004000] Initializing cgroup subsys net_cls [ 0.004000] Initializing cgroup subsys blkio [ 0.004000] Initializing cgroup subsys perf_event [ 0.004000] Initializing cgroup subsys net_prio [ 0.004000] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 0.004000] CPU: Physical Processor ID: 0 [ 0.004000] CPU: Processor Core ID: 0 [ 0.004000] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 Last level dTLB entries: 4KB 512, 2MB 32, 4MB 32, 1GB 0 tlb_flushall_shift: 2 [ 0.034866] Freeing SMP alternatives memory: 20K (ffffffff81a1b000 - ffffffff81a20000) [ 0.037443] ftrace: allocating 21679 entries in 85 pages [ 0.044144] Performance Events: unsupported p6 CPU model 58 no PMU driver, software events only. [ 0.045610] x86: Booted up 1 node, 1 CPUs [ 0.045660] NMI watchdog: disabled (cpu0): hardware events not enabled [ 0.045739] devtmpfs: initialized [ 0.049008] pinctrl core: initialized pinctrl subsystem [ 0.049089] NET: Registered protocol family 16 [ 0.049124] xen:grant_table: Grant tables using version 1 layout [ 0.049147] Grant table initialized [ 0.049432] PCI: setting up Xen PCI frontend stub [ 0.049432] PCI: pci_cache_line_size set to 64 bytes [ 0.049786] ACPI: Interpreter disabled. [ 0.049808] xen:balloon: Initialising balloon driver [ 0.052037] xen_balloon: Initialising balloon driver [ 0.052061] vgaarb: loaded [ 0.052133] PCI: System does not support PCI [ 0.052137] PCI: System does not support PCI [ 0.052288] Switched to clocksource xen [ 0.056226] pnp: PnP ACPI: disabled [ 0.057990] NET: Registered protocol family 2 [ 0.058160] TCP established hash table entries: 1024 (order: 1, 8192 bytes) [ 0.058172] TCP bind hash table entries: 1024 (order: 2, 16384 bytes) [ 0.058178] TCP: Hash tables configured (established 1024 bind 1024) [ 0.058193] TCP: reno registered [ 0.058200] UDP hash table entries: 256 (order: 1, 8192 bytes) [ 0.058207] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes) [ 0.058247] NET: Registered protocol family 1 [ 0.058262] PCI: CLS 0 bytes, default 64 [ 0.058310] Unpacking initramfs... [ 0.097449] Freeing initrd memory: 44252K (ffff880001f18000 - ffff880004a4f000) [ 0.099078] platform rtc_cmos: registered platform RTC device (no PNP device found) [ 0.099138] RAPL PMU detected, hw unit 2^-16 Joules, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer [ 0.099170] microcode: CPU0 sig=0x306a9, pf=0x2, revision=0x19 [ 0.099218] microcode: Microcode Update Driver: v2.00 < tig...@aivazian.fsnet.co.uk>, Peter Oruba [ 0.099429] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.099456] audit: initializing netlink subsys (disabled) [ 0.099475] audit: type=2000 audit(1454627953.001:1): initialized [ 0.099755] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.099779] zbud: loaded [ 0.099917] VFS: Disk quotas dquot_6.5.2 [ 0.099930] Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.099981] msgmni has been set to 227 [ 0.100254] alg: No test for stdrng (krng) [ 0.100275] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252) [ 0.100314] io scheduler noop registered (default) [ 0.100319] io scheduler deadline registered [ 0.100346] io scheduler cfq registered [ 0.100405] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.100423] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.100451] intel_idle: does not run on family 6 model 58 [ 0.102533] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.102816] Linux agpgart interface v0.103 [ 0.102897] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 1.282113] i8042: No controller found [ 1.282447] mousedev: PS/2 mouse device common for all mice [ 1.342255] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0 [ 1.342308] rtc_cmos: probe of rtc_cmos failed with error -38 [ 1.342341] ledtrig-cpu: registered to indicate activity on CPUs [ 1.342361] AMD IOMMUv2 driver by Joerg Roedel <joerg.roe...@amd.com> [ 1.342364] AMD IOMMUv2 functionality not available on this system [ 1.342459] TCP: cubic registered [ 1.342478] NET: Registered protocol family 10 [ 1.342654] mip6: Mobile IPv6 [ 1.342662] NET: Registered protocol family 17 [ 1.342671] mpls_gso: MPLS GSO support [ 1.342678] mce: Unable to init device /dev/mcelog (rc: -5) [ 1.342820] registered taskstats version 1 [ 1.342878] xenbus_probe_frontend: Device with no driver: device/vbd/51714 [ 1.342883] xenbus_probe_frontend: Device with no driver: device/vbd/51713 [ 1.342886] xenbus_probe_frontend: Device with no driver: device/vif/0 [ 1.342889] xenbus_probe_frontend: Device with no driver: device/pci/0 [ 1.342925] rtc_hctosys: unable to open rtc device (rtc0) [ 1.342973] PM: Hibernation image not present or could not be loaded. [ 1.343486] Freeing unused kernel memory: 1204K (ffffffff818ee000 - ffffffff81a1b000) [ 1.343495] Write protecting the kernel read-only data: 8192k [ 1.346220] Freeing unused kernel memory: 912K (ffff88000151c000 - ffff880001600000) [ 1.346355] Freeing unused kernel memory: 212K (ffff8800017cb000 - ffff880001800000) [ 1.368373] systemd-udevd[58]: starting version 215 [ 1.369126] random: systemd-udevd urandom read with 3 bits of entropy available [ 1.395026] xen_netfront: Initialising Xen virtual ethernet driver [ 1.462872] blkfront: xvda2: flush diskcache: enabled; persistent grants: enabled; indirect descriptors: enabled; [ 1.465338] Setting capacity to 20971520 [ 1.465352] xvda2: detected capacity change from 0 to 10737418240 [ 1.466851] blkfront: xvda1: flush diskcache: enabled; persistent grants: enabled; indirect descriptors: enabled; [ 2.927311] PM: Starting manual resume from disk [ 2.927327] PM: Hibernation image partition 202:1 present [ 2.927329] PM: Looking for hibernation image. [ 2.927847] PM: Image not found (code -22) [ 2.927850] PM: Hibernation image not present or could not be loaded. [ 5.327133] random: nonblocking pool is initialized [ 6.193668] EXT4-fs (xvda2): mounted filesystem with ordered data mode. Opts: (null) [ 9.539459] systemd[1]: systemd 215 running in system mode. (+PAM +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ -SECCOMP -APPARMOR) [ 9.539564] systemd[1]: Detected virtualization 'xen'. [ 9.539579] systemd[1]: Detected architecture 'x86-64'. [ 10.339528] systemd[1]: Inserted module 'autofs4' [ 10.396195] systemd[1]: Set hostname to <bug>. [ 11.949956] systemd[1]: Cannot add dependency job for unit dbus.socket, ignoring: Unit dbus.socket failed to load: No such file or directory. [ 11.949986] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory. [ 11.950446] systemd[1]: Starting Forward Password Requests to Wall Directory Watch. [ 11.950588] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ 11.950615] systemd[1]: Expecting device dev-hvc0.device... [ 11.950786] systemd[1]: Starting Remote File Systems (Pre). [ 11.950883] systemd[1]: Reached target Remote File Systems (Pre). [ 11.950934] systemd[1]: Starting Arbitrary Executable File Formats File System Automount Point. [ 11.951149] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ 11.951187] systemd[1]: Starting Dispatch Password Requests to Console Directory Watch. [ 11.951267] systemd[1]: Started Dispatch Password Requests to Console Directory Watch. [ 11.951288] systemd[1]: Starting Paths. [ 11.951371] systemd[1]: Reached target Paths. [ 11.951394] systemd[1]: Starting Encrypted Volumes. [ 11.951471] systemd[1]: Reached target Encrypted Volumes. [ 11.951493] systemd[1]: Expecting device dev-xvda1.device... [ 11.951570] systemd[1]: Starting Root Slice. [ 11.951673] systemd[1]: Created slice Root Slice. [ 11.951695] systemd[1]: Starting User and Session Slice. [ 11.951819] systemd[1]: Created slice User and Session Slice. [ 11.951842] systemd[1]: Starting Delayed Shutdown Socket. [ 11.952330] systemd[1]: Listening on Delayed Shutdown Socket. [ 11.952357] systemd[1]: Starting /dev/initctl Compatibility Named Pipe. [ 11.952491] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe. [ 11.952514] systemd[1]: Starting Journal Socket (/dev/log). [ 11.952651] systemd[1]: Listening on Journal Socket (/dev/log). [ 11.952684] systemd[1]: Starting udev Kernel Socket. [ 11.952790] systemd[1]: Listening on udev Kernel Socket. [ 11.952819] systemd[1]: Starting udev Control Socket. [ 11.952930] systemd[1]: Listening on udev Control Socket. [ 11.952957] systemd[1]: Starting Journal Socket. [ 11.953089] systemd[1]: Listening on Journal Socket. [ 11.953127] systemd[1]: Starting System Slice. [ 11.953270] systemd[1]: Created slice System Slice. [ 11.953311] systemd[1]: Starting File System Check on Root Device... [ 11.954749] systemd[1]: Starting system-getty.slice. [ 11.954968] systemd[1]: Created slice system-getty.slice. [ 11.954992] systemd[1]: Starting system-serial\x2dgetty.slice. [ 11.955134] systemd[1]: Created slice system-serial\x2dgetty.slice. [ 11.955226] systemd[1]: Starting Increase datagram queue length... [ 11.956709] systemd[1]: Mounting POSIX Message Queue File System... [ 11.959557] systemd[1]: Mounting Debug File System... [ 12.135725] systemd[1]: Started Set Up Additional Binary Formats. [ 12.135808] systemd[1]: Mounting Huge Pages File System... [ 12.137545] systemd[1]: Starting Create list of required static device nodes for the current kernel... [ 12.224465] systemd[1]: Starting Load Kernel Modules... [ 12.226092] systemd[1]: Starting udev Coldplug all Devices... [ 12.227596] systemd[1]: Starting Slices. [ 12.227728] systemd[1]: Reached target Slices. [ 12.233385] systemd[1]: Started Increase datagram queue length. [ 12.233708] systemd[1]: Starting Syslog Socket. [ 12.233859] systemd[1]: Listening on Syslog Socket. [ 12.233889] systemd[1]: Starting Sockets. [ 12.233969] systemd[1]: Reached target Sockets. [ 12.233995] systemd[1]: Starting Journal Service... [ 12.235536] systemd[1]: Started Journal Service. [ 14.527439] systemd-udevd[142]: starting version 215 [ 14.879135] EXT4-fs (xvda2): re-mounted. Opts: errors=remount-ro [ 15.060743] systemd-journald[124]: Received request to flush runtime journal from PID 1 [ 15.138443] input: PC Speaker as /devices/platform/pcspkr/input/input0 [ 15.140288] pcifront pci-0: Installing PCI frontend [ 15.140314] xen:swiotlb_xen: Warning: only able to allocate 4 MB for software IO TLB [ 15.143506] software IO TLB [mem 0x02400000-0x02800000] (4MB) mapped at [ffff880002400000-ffff8800027fffff] [ 15.143821] pcifront pci-0: Creating PCI Frontend Bus 0000:00 [ 15.144654] pcifront pci-0: PCI host bridge to bus 0000:00 [ 15.144666] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 15.144672] pci_bus 0000:00: root bus resource [mem 0x00000000-0xfffffffff] [ 15.144679] pci_bus 0000:00: root bus resource [bus 00-ff] [ 15.145145] pci 0000:00:01.0: [1912:0014] type 00 class 0x0c0330 [ 15.145589] pci 0000:00:01.0: reg 0x10: [mem 0xfbff0000-0xfbff1fff 64bit] [ 15.150664] pci 0000:00:00.1: [14e4:165f] type 00 class 0x020000 [ 15.151307] pci 0000:00:00.1: reg 0x10: [mem 0xfabc0000-0xfabcffff 64bit pref] [ 15.151733] pci 0000:00:00.1: reg 0x18: [mem 0xfabb0000-0xfabbffff 64bit pref] [ 15.152192] pci 0000:00:00.1: reg 0x20: [mem 0xfaba0000-0xfabaffff 64bit pref] [ 15.155084] pcifront pci-0: New device on 0000:00:00.1 found. [ 15.157304] pcifront pci-0: claiming resource 0000:00:01.0/0 [ 15.157316] pcifront pci-0: claiming resource 0000:00:00.1/0 [ 15.157321] pcifront pci-0: claiming resource 0000:00:00.1/2 [ 15.157326] pcifront pci-0: claiming resource 0000:00:00.1/4 [ 15.157608] pci 0000:00:01.0: Xen PCI mapped GSI18 to IRQ29 [ 15.226457] alg: No test for crc32 (crc32-pclmul) [ 15.365920] intel_rapl: Found RAPL domain package [ 15.365934] intel_rapl: Found RAPL domain core [ 15.416601] usbcore: registered new interface driver usbfs [ 15.416868] usbcore: registered new interface driver hub [ 15.416932] usbcore: registered new device driver usb [ 15.448763] xen:events: xen_bind_pirq_gsi_to_irq: returning irq 29 for gsi 18 [ 15.448783] xhci_hcd 0000:00:01.0: Xen PCI mapped GSI18 to IRQ29 [ 15.449088] xhci_hcd 0000:00:01.0: xHCI Host Controller [ 15.449105] xhci_hcd 0000:00:01.0: new USB bus registered, assigned bus number 1 [ 15.461222] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 15.461245] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 15.461265] usb usb1: Product: xHCI Host Controller [ 15.461271] usb usb1: Manufacturer: Linux 3.16.0-4-amd64 xhci_hcd [ 15.461276] usb usb1: SerialNumber: 0000:00:01.0 [ 15.461635] hub 1-0:1.0: USB hub found [ 15.461660] hub 1-0:1.0: 2 ports detected [ 15.461796] xhci_hcd 0000:00:01.0: xHCI Host Controller [ 15.461808] xhci_hcd 0000:00:01.0: new USB bus registered, assigned bus number 2 [ 15.461855] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM. [ 15.461885] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003 [ 15.461891] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 15.461897] usb usb2: Product: xHCI Host Controller [ 15.461901] usb usb2: Manufacturer: Linux 3.16.0-4-amd64 xhci_hcd [ 15.461906] usb usb2: SerialNumber: 0000:00:01.0 [ 15.462175] hub 2-0:1.0: USB hub found [ 15.462194] hub 2-0:1.0: 2 ports detected [ 15.523663] pps_core: LinuxPPS API ver. 1 registered [ 15.523676] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giome...@linux.it> [ 15.557171] PTP clock support registered [ 15.642442] tg3.c:v3.137 (May 11, 2014) [ 15.642549] tg3 0000:00:00.1: Xen PCI mapped GSI17 to IRQ32 [ 15.673476] tg3 0000:00:00.1 eth1: Tigon3 [partno(N/A) rev 5720000] (PCI Express) MAC address 34:64:a9:9a:a8:b1 [ 15.673494] tg3 0000:00:00.1 eth1: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1]) [ 15.673502] tg3 0000:00:00.1 eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1] [ 15.673508] tg3 0000:00:00.1 eth1: dma_rwctrl[00000001] dma_mask[64-bit] [ 15.727471] Adding 262140k swap on /dev/xvda1. Priority:-1 extents:1 across:262140k SSFS [ 15.776043] usb 1-1: new high-speed USB device number 2 using xhci_hcd [ 15.908336] usb 1-1: New USB device found, idVendor=1307, idProduct=0163 [ 15.908350] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 15.908356] usb 1-1: Product: USB Mass Storage Device [ 15.908361] usb 1-1: Manufacturer: USBest Technology [ 15.908366] usb 1-1: SerialNumber: 081104644414d4 [ 15.996660] SCSI subsystem initialized [ 16.008836] usb-storage 1-1:1.0: USB Mass Storage device detected [ 16.008940] scsi0 : usb-storage 1-1:1.0 [ 16.009037] usbcore: registered new interface driver usb-storage [ 17.009371] scsi 0:0:0:0: Direct-Access 0.00 PQ: 0 ANSI: 2 [ 17.011432] scsi 0:0:0:1: CD-ROM 0.00 PQ: 0 ANSI: 0 CCS [ 17.075703] sr0: scsi3-mmc drive: 93x/93x cd/rw xa/form2 cdda tray [ 17.075720] cdrom: Uniform CD-ROM driver Revision: 3.20 [ 17.076299] sr 0:0:0:1: Attached scsi CD-ROM sr0 [ 17.092662] scsi 0:0:0:0: Attached scsi generic sg0 type 0 [ 17.092787] sr 0:0:0:1: Attached scsi generic sg1 type 5 [ 17.149685] sd 0:0:0:0: [sda] 1968127 512-byte logical blocks: (1.00 GB/960 MiB) [ 17.151230] sd 0:0:0:0: [sda] Write Protect is off [ 17.151242] sd 0:0:0:0: [sda] Mode Sense: 00 00 00 00 [ 17.154123] sd 0:0:0:0: [sda] Asking for cache data failed [ 17.154139] sd 0:0:0:0: [sda] Assuming drive cache: write through [ 17.269987] sda: sda1 sda2 [ 17.272430] sd 0:0:0:0: [sda] Attached SCSI removable disk dom0 "xl dmesg": (XEN) Xen version 4.4.1 (Debian 4.4.1-9+deb8u3) (ultrot...@debian.org) (gcc (Debian 4.9.2-10) 4.9.2) debug=n Wed Nov 25 15:46:22 EET 2015 (XEN) Bootloader: GRUB 2.02~beta2-22+deb8u1 (XEN) Command line: placeholder dom0_mem=1024M,max:1024M (XEN) Video information: (XEN) VGA is text mode 80x25, font 8x16 (XEN) VBE/DDC methods: none; EDID transfer time: 0 seconds (XEN) EDID info not retrieved because no DDC retrieval method detected (XEN) Disc information: (XEN) Found 4 MBR signatures (XEN) Found 2 EDD information structures (XEN) Xen-e820 RAM map: (XEN) 0000000000000000 - 0000000000099800 (usable) (XEN) 0000000000099800 - 0000000000099c00 (reserved) (XEN) 000000000009e000 - 00000000000a0000 (reserved) (XEN) 00000000000f0000 - 0000000000100000 (reserved) (XEN) 0000000000100000 - 00000000f1de4000 (usable) (XEN) 00000000f1de4000 - 00000000f1dee000 (ACPI data) (XEN) 00000000f1dee000 - 00000000f8000000 (reserved) (XEN) 00000000fec00000 - 00000000fee10000 (reserved) (XEN) 00000000ff800000 - 0000000100000000 (reserved) (XEN) 0000000100000000 - 000000028bfff000 (usable) (XEN) ACPI: RSDP 000F4F00, 0024 (r2 HP ) (XEN) ACPI: XSDT F1DE6400, 00B4 (r1 HP ProLiant 2 � 162E) (XEN) ACPI: FACP F1DE6540, 00F4 (r3 HP ProLiant 2 � 162E) (XEN) ACPI: DSDT F1DE6640, 1C1A (r1 HP DSDT 1 INTL 20030228) (XEN) ACPI: FACS F1DE4140, 0040 (XEN) ACPI: SPCR F1DE4180, 0050 (r1 HP SPCRRBSU 1 � 162E) (XEN) ACPI: MCFG F1DE4200, 003C (r1 HP ProLiant 1 0) (XEN) ACPI: HPET F1DE4240, 0038 (r1 HP ProLiant 2 � 162E) (XEN) ACPI: FFFF F1DE4280, 0064 (r2 HP ProLiant 2 � 162E) (XEN) ACPI: SPMI F1DE4300, 0040 (r5 HP ProLiant 1 � 162E) (XEN) ACPI: ERST F1DE4340, 0230 (r1 HP ProLiant 1 � 162E) (XEN) ACPI: APIC F1DE4580, 0252 (r1 HP ProLiant 2 0) (XEN) ACPI: FFFF F1DE4800, 0176 (r1 HP ProLiant 1 � 162E) (XEN) ACPI: BERT F1DE4980, 0030 (r1 HP ProLiant 1 � 162E) (XEN) ACPI: HEST F1DE49C0, 00BC (r1 HP ProLiant 1 � 162E) (XEN) ACPI: FFFF F1DE4A80, 1914 (r1 HP ProLiant 1 � 162E) (XEN) ACPI: FFFF F1DE63C0, 002D (r1 HP ProLiant 1 0) (XEN) ACPI: SSDT F1DE8280, 0137 (r3 HP CRSPCI0 2 HP 1) (XEN) ACPI: SSDT F1DE83C0, 0177 (r3 HP riser0 2 INTL 20030228) (XEN) ACPI: SSDT F1DE8540, 01E1 (r1 HP pcc 1 INTL 20090625) (XEN) ACPI: SSDT F1DE8740, 0377 (r1 HP pmab 1 INTL 20090625) (XEN) ACPI: SSDT F1DE8AC0, 0504 (r1 INTEL PPM RCM 80000001 INTL 20061109) (XEN) System RAM: 10205MB (10450416kB) (XEN) Domain heap initialised (XEN) Processor #0 7:10 APIC version 21 (XEN) Processor #2 7:10 APIC version 21 (XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23 (XEN) Enabling APIC mode: Flat. Using 1 I/O APICs (XEN) Using scheduler: SMP Credit Scheduler (credit) (XEN) Detected 2294.851 MHz processor. (XEN) Initing memory sharing. (XEN) xstate_init: using cntxt_size: 0x240 and states: 0x3 (XEN) I/O virtualisation disabled (XEN) Enabled directed EOI with ioapic_ack_old on! (XEN) ENABLING IO-APIC IRQs (XEN) -> Using old ACK method (XEN) Platform timer is 14.318MHz HPET (XEN) Allocated console ring of 16 KiB. (XEN) VMX: Supported advanced features: (XEN) - APIC MMIO access virtualisation (XEN) - APIC TPR shadow (XEN) - Extended Page Tables (EPT) (XEN) - Virtual-Processor Identifiers (VPID) (XEN) - Virtual NMI (XEN) - MSR direct-access bitmap (XEN) - Unrestricted Guest (XEN) HVM: ASIDs enabled. (XEN) HVM: VMX enabled (XEN) HVM: Hardware Assisted Paging (HAP) detected (XEN) HVM: HAP page sizes: 4kB, 2MB (XEN) Brought up 2 CPUs (XEN) *** LOADING DOMAIN 0 *** (XEN) Xen kernel: 64-bit, lsb, compat32 (XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1f18000 (XEN) PHYSICAL MEMORY ARRANGEMENT: (XEN) Dom0 alloc.: 000000023c000000->0000000240000000 (241834 pages to be allocated) (XEN) Init. ramdisk: 000000028aeaa000->000000028bdffc27 (XEN) VIRTUAL MEMORY ARRANGEMENT: (XEN) Loaded kernel: ffffffff81000000->ffffffff81f18000 (XEN) Init. ramdisk: ffffffff81f18000->ffffffff82e6dc27 (XEN) Phys-Mach map: ffffffff82e6e000->ffffffff8306e000 (XEN) Start info: ffffffff8306e000->ffffffff8306e4b4 (XEN) Page tables: ffffffff8306f000->ffffffff8308c000 (XEN) Boot stack: ffffffff8308c000->ffffffff8308d000 (XEN) TOTAL: ffffffff80000000->ffffffff83400000 (XEN) ENTRY ADDRESS: ffffffff819021f0 (XEN) Dom0 has maximum 2 VCPUs (XEN) Scrubbing Free RAM: ..........................................................................................done. (XEN) Initial low memory virq threshold set at 0x4000 pages. (XEN) Std. Loglevel: Errors and warnings (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings) (XEN) Xen is relinquishing VGA console. (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen) (XEN) Freed 284kB init memory. (XEN) mm.c:812: d13: Forcing read-only access to MFN fbff1 (XEN) mm.c:812: d13: Forcing read-only access to MFN fbff1 (XEN) mm.c:812: d13: Forcing read-only access to MFN fbff1 (XEN) mm.c:812: d0: Forcing read-only access to MFN fbff1 Br, Tommi Airikka On Thu, Feb 4, 2016 at 10:37 AM, Ian Campbell <ian.campb...@citrix.com> wrote: > On Wed, 2016-02-03 at 15:28 -0500, Konrad Rzeszutek Wilk wrote: > > > > And I wonder if the XEN_DOMCTL_irq_permission aka, > > > > xc_domain_irq_permission > > > > had been called. I remember that at some point we missed it for > > > > Xend.. > > > > > > > > False alarm. > > > > It was all in Linux. Attached are four patches (the first two > > are for your issue you discovered). > > I was wondering if there is a way for you to test them? > > Tommy, > > Please see the Debian Kernel Handbook and in particular > > https://www.debian.org/doc/manuals/debian-kernel-handbook/ch-common-tasks.html#s-common-official > for instructions on rebuilding the Debian kernel with additional patches. > > Ian. > >
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