Package: src:linux Version: 3.16.7-ckt9-2 Severity: normal
In a level 1 KVM guest, starting a level 2 KVM guest with QEMU fails and triggers "soft lockup" messages on the serial console. Then the level 1 KVM guest becomes unresponsive. That's a regression since Wheezy: this does not happen (everything works fine, on the very same level 1 KVM guest, when running Wheezy's kernel. The host system is running Wheezy + Linux from wheezy-backports. The level 1 KVM guest is running Jessie, and is using statically allocated HugePages as its memory backend. The level 2 KVM guest is started with: sudo qemu-system-x86_64 -cdrom /srv/tails-i386-1.3.2.iso -m 1280 -nographic -machine pc-0.15,accel=kvm I could also reproduce this bug with: -machine pc-0.15,accel=kvm,mem-merge=off -machine pc-q35-2.1,accel=kvm The various messages I could see on the serial console can be found at https://labs.riseup.net/code/issues/9157 -- you'll see there various other tests and their results. See in particular: https://labs.riseup.net/code/attachments/download/739/trace1 https://labs.riseup.net/code/attachments/download/740/trace2 If you prefer, I can attach these logs to this bug report. I can also reproduce the bug with the 3.19.3-1~exp1 kernel. -- Package-specific info: ** Version: Linux version 3.16.0-4-amd64 (debian-kernel@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.7-ckt9-2 (2015-04-13) ** Command line: BOOT_IMAGE=/vmlinuz-3.16.0-4-amd64 root=/dev/mapper/vg1-root ro apparmor=1 security=apparmor console=ttyS0,115200n8 quiet ** Not tainted ** Kernel log: [ 0.643097] uhci_hcd: USB Universal Host Controller Interface driver [ 0.643499] uhci_hcd 0000:00:01.2: UHCI Host Controller [ 0.643509] uhci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1 [ 0.643534] uhci_hcd 0000:00:01.2: detected 2 ports [ 0.643655] uhci_hcd 0000:00:01.2: irq 11, io base 0x0000c0c0 [ 0.643774] usb usb1: New USB device found, idVendor=1d6b, idProduct=0001 [ 0.643777] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 0.643779] usb usb1: Product: UHCI Host Controller [ 0.643782] usb usb1: Manufacturer: Linux 3.16.0-4-amd64 uhci_hcd [ 0.643784] usb usb1: SerialNumber: 0000:00:01.2 [ 0.643934] hub 1-0:1.0: USB hub found [ 0.643942] hub 1-0:1.0: 2 ports detected [ 0.646119] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10 [ 0.648472] SCSI subsystem initialized [ 0.648633] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10 [ 0.649339] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11 [ 0.649946] libata version 3.00 loaded. [ 0.651443] ata_piix 0000:00:01.1: version 2.13 [ 0.652063] scsi0 : ata_piix [ 0.652184] scsi1 : ata_piix [ 0.652226] ata1: PATA max MWDMA2 cmd 0x1f0 ctl 0x3f6 bmdma 0xc120 irq 14 [ 0.652228] ata2: PATA max MWDMA2 cmd 0x170 ctl 0x376 bmdma 0xc128 irq 15 [ 0.664521] FDC 0 is a S82078B [ 0.681997] virtio-pci 0000:00:03.0: irq 40 for MSI/MSI-X [ 0.682018] virtio-pci 0000:00:03.0: irq 41 for MSI/MSI-X [ 0.682037] virtio-pci 0000:00:03.0: irq 42 for MSI/MSI-X [ 0.682676] virtio-pci 0000:00:04.0: irq 43 for MSI/MSI-X [ 0.682801] virtio-pci 0000:00:04.0: irq 44 for MSI/MSI-X [ 0.684580] vda: vda1 vda2 [ 0.685193] virtio-pci 0000:00:06.0: irq 45 for MSI/MSI-X [ 0.685214] virtio-pci 0000:00:06.0: irq 46 for MSI/MSI-X [ 0.686163] vdb: unknown partition table [ 0.686666] virtio-pci 0000:00:07.0: irq 47 for MSI/MSI-X [ 0.686686] virtio-pci 0000:00:07.0: irq 48 for MSI/MSI-X [ 0.687637] vdc: unknown partition table [ 0.869798] device-mapper: uevent: version 1.0.3 [ 0.869907] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-de...@redhat.com [ 0.956079] usb 1-1: new full-speed USB device number 2 using uhci_hcd [ 1.040014] raid6: sse2x1 4759 MB/s [ 1.108009] raid6: sse2x2 7184 MB/s [ 1.176014] raid6: sse2x4 8373 MB/s [ 1.176016] raid6: using algorithm sse2x4 (8373 MB/s) [ 1.176017] raid6: using ssse3x2 recovery algorithm [ 1.176514] xor: automatically using best checksumming function: [ 1.204911] usb 1-1: New USB device found, idVendor=0627, idProduct=0001 [ 1.204916] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=5 [ 1.204918] usb 1-1: Product: QEMU USB Tablet [ 1.204921] usb 1-1: Manufacturer: QEMU 1.1.2 [ 1.204923] usb 1-1: SerialNumber: 42 [ 1.213391] hidraw: raw HID events driver (C) Jiri Kosina [ 1.216009] avx : 18136.000 MB/sec [ 1.221592] Btrfs loaded [ 1.222239] usbcore: registered new interface driver usbhid [ 1.222243] usbhid: USB HID core driver [ 1.225889] input: QEMU 1.1.2 QEMU USB Tablet as /devices/pci0000:00/0000:00:01.2/usb1/1-1/1-1:1.0/0003:0627:0001.0001/input/input2 [ 1.226109] hid-generic 0003:0627:0001.0001: input,hidraw0: USB HID v0.01 Pointer [QEMU 1.1.2 QEMU USB Tablet] on usb-0000:00:01.2-1/input0 [ 1.499054] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Opts: (null) [ 1.540148] tsc: Refined TSC clocksource calibration: 1799.962 MHz [ 3.140909] systemd[1]: Cannot add dependency job for unit display-manager.service, ignoring: Unit display-manager.service failed to load: No such file or directory. [ 3.234219] fuse init (API version 7.23) [ 3.290834] loop: module loaded [ 3.413794] systemd-udevd[195]: starting version 215 [ 3.782819] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3 [ 3.782827] ACPI: Power Button [PWRF] [ 3.874144] input: PC Speaker as /devices/platform/pcspkr/input/input4 [ 3.892594] [drm] Initialized drm 1.1.0 20060810 [ 3.935690] ppdev: user-space parallel port driver [ 3.942719] piix4_smbus 0000:00:01.3: SMBus Host Controller at 0xb100, revision 0 [ 4.037948] AVX version of gcm_enc/dec engaged. [ 4.041123] alg: No test for __gcm-aes-aesni (__driver-gcm-aes-aesni) [ 4.069710] alg: No test for crc32 (crc32-pclmul) [ 4.145293] intel_rapl: no valid rapl domains found in package 0 [ 4.158321] intel_rapl: no valid rapl domains found in package 0 [ 4.392146] EXT4-fs (dm-0): re-mounted. Opts: errors=remount-ro [ 4.455201] EXT4-fs (vdb): recovery complete [ 4.455208] EXT4-fs (vdb): mounted filesystem with ordered data mode. Opts: acl [ 4.455282] EXT4-fs (vdc): recovery complete [ 4.455289] EXT4-fs (vdc): mounted filesystem with ordered data mode. Opts: acl [ 4.742382] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input5 [ 5.220431] EXT4-fs (vda1): mounting ext2 file system using the ext4 subsystem [ 5.227651] EXT4-fs (vda1): mounted filesystem without journal. Opts: (null) [ 5.234126] systemd-journald[177]: Received request to flush runtime journal from PID 1 [ 5.561185] audit: type=1400 audit(1429286754.484:2): apparmor="STATUS" operation="profile_load" name="/{usr/,}bin/ping" pid=492 comm="apparmor_parser" [ 5.568313] audit: type=1400 audit(1429286754.492:3): apparmor="STATUS" operation="profile_load" name="gst_plugin_scanner" pid=492 comm="apparmor_parser" [ 5.582990] audit: type=1400 audit(1429286754.504:4): apparmor="STATUS" operation="profile_load" name="/sbin/klogd" pid=492 comm="apparmor_parser" [ 5.605687] audit: type=1400 audit(1429286754.528:5): apparmor="STATUS" operation="profile_load" name="/sbin/syslog-ng" pid=492 comm="apparmor_parser" [ 5.667149] audit: type=1400 audit(1429286754.588:6): apparmor="STATUS" operation="profile_load" name="/sbin/syslogd" pid=492 comm="apparmor_parser" [ 5.693422] audit: type=1400 audit(1429286754.616:7): apparmor="STATUS" operation="profile_load" name="system_tor" pid=492 comm="apparmor_parser" [ 5.746398] audit: type=1400 audit(1429286754.668:8): apparmor="STATUS" operation="profile_load" name="/usr/lib/chromium-browser/chromium-browser" pid=492 comm="apparmor_parser" [ 5.746405] audit: type=1400 audit(1429286754.668:9): apparmor="STATUS" operation="profile_load" name="browser_java" pid=492 comm="apparmor_parser" [ 5.746409] audit: type=1400 audit(1429286754.668:10): apparmor="STATUS" operation="profile_load" name="browser_openjdk" pid=492 comm="apparmor_parser" [ 5.746413] audit: type=1400 audit(1429286754.668:11): apparmor="STATUS" operation="profile_load" name="chromium_browser_sandbox" pid=492 comm="apparmor_parser" [ 6.338748] RPC: Registered named UNIX socket transport module. [ 6.338753] RPC: Registered udp transport module. [ 6.338755] RPC: Registered tcp transport module. [ 6.338757] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 6.362961] FS-Cache: Loaded [ 6.393745] FS-Cache: Netfs 'nfs' registered for caching [ 6.435512] Installing knfsd (copyright (C) 1996 o...@monad.swb.de). [ 26.092089] random: nonblocking pool is initialized ** Model information sys_vendor: Bochs product_name: Bochs product_version: chassis_vendor: Bochs chassis_version: bios_vendor: Bochs bios_version: Bochs ** Loaded modules: nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc kvm_intel kvm crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_piix4 ttm ppdev joydev drm_kms_helper psmouse drm pcspkr i2c_core parport_pc evdev virtio_balloon serio_raw parport processor thermal_sys button loop fuse autofs4 ext4 crc16 mbcache jbd2 hid_generic btrfs usbhid hid xor raid6_pq dm_mod md_mod ata_generic virtio_blk virtio_net crct10dif_pclmul crct10dif_common crc32c_intel floppy ata_piix libata scsi_mod virtio_pci uhci_hcd virtio_ring virtio ehci_hcd usbcore usb_common ** PCI devices: 00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- 00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000] Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- 00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master]) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8] Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8] Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) Region 4: I/O ports at c120 [size=16] Kernel driver in use: ata_piix 00:01.2 USB controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI]) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin D routed to IRQ 11 Region 4: I/O ports at c0c0 [size=32] Kernel driver in use: uhci_hcd 00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03) Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100] Physical Slot: 1 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin A routed to IRQ 9 Kernel driver in use: piix4_smbus 00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller]) Subsystem: Red Hat, Inc QEMU Virtual Machine [1af4:1100] Physical Slot: 2 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Region 0: Memory at fc000000 (32-bit, prefetchable) [size=32M] Region 1: Memory at febf0000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febd0000 [disabled] [size=64K] 00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000] Subsystem: Red Hat, Inc Device [1af4:0001] Physical Slot: 3 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c0e0 [size=32] Region 1: Memory at febf1000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at febe0000 [disabled] [size=64K] Capabilities: <access denied> Kernel driver in use: virtio-pci 00:04.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001] Subsystem: Red Hat, Inc Device [1af4:0002] Physical Slot: 4 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at c000 [size=64] Region 1: Memory at febf2000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: virtio-pci 00:05.0 Unclassified device [00ff]: Red Hat, Inc Virtio memory balloon [1af4:1002] Subsystem: Red Hat, Inc Device [1af4:0005] Physical Slot: 5 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c100 [size=32] Kernel driver in use: virtio-pci 00:06.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001] Subsystem: Red Hat, Inc Device [1af4:0002] Physical Slot: 6 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at c040 [size=64] Region 1: Memory at febf3000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: virtio-pci 00:07.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001] Subsystem: Red Hat, Inc Device [1af4:0002] Physical Slot: 7 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at c080 [size=64] Region 1: Memory at febf4000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: virtio-pci ** USB devices: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub -- System Information: Debian Release: 8.0 APT prefers testing APT policy: (990, 'testing'), (1, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 3.16.0-4-amd64 (SMP w/3 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages linux-image-3.16.0-4-amd64 depends on: ii debconf [debconf-2.0] 1.5.56 ii initramfs-tools [linux-initramfs-tool] 0.120 ii kmod 18-3 ii linux-base 3.5 ii module-init-tools 18-3 Versions of packages linux-image-3.16.0-4-amd64 recommends: ii firmware-linux-free 3.3 ii irqbalance 1.0.6-3 Versions of packages linux-image-3.16.0-4-amd64 suggests: pn debian-kernel-handbook <none> ii extlinux 3:6.03+dfsg-5 ii grub-pc 2.02~beta2-22 pn linux-doc-3.16 <none> Versions of packages linux-image-3.16.0-4-amd64 is related to: pn firmware-atheros <none> pn firmware-bnx2 <none> pn firmware-bnx2x <none> pn firmware-brcm80211 <none> pn firmware-intelwimax <none> pn firmware-ipw2x00 <none> pn firmware-ivtv <none> pn firmware-iwlwifi <none> pn firmware-libertas <none> pn firmware-linux <none> pn firmware-linux-nonfree <none> pn firmware-myricom <none> pn firmware-netxen <none> pn firmware-qlogic <none> pn firmware-ralink <none> pn firmware-realtek <none> pn xen-hypervisor <none> -- debconf information: linux-image-3.16.0-4-amd64/prerm/removing-running-kernel-3.16.0-4-amd64: true linux-image-3.16.0-4-amd64/postinst/depmod-error-initrd-3.16.0-4-amd64: false linux-image-3.16.0-4-amd64/postinst/mips-initrd-3.16.0-4-amd64: -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150417163132.941.2515.reportbug@isotester1.lizard
