Control: reassign -1 linux-image-3.16.0-4-amd64 3.16.7-ckt9-3~deb8u1 On Wed, 2015-05-27 at 08:44 +1000, Andrew Perry wrote: > Package: xen-hypervisor-4.4-amd64 > Version: 4.4.1-9 > Severity: critical > Justification: breaks the whole system > > Dear Maintainer, > > After upgrading the R610 server from Debian 7 to Debian 8, the dom0 > becomes unresponsive via ssh after an hour or so, although the domUs > still remain accessible. > > Initially we thought it may be a disk space issue on / or /boot so > action was taken to increase those petition sizes but it has no > effect. > > We get the following trace in /var/log/syslog: > > May 26 09:18:59 servername kernel: [31526.937788] BUG: unable to handle > kernel paging request at ffffc90013a4b158 > May 26 09:18:59 servername kernel: [31526.937798] IP: [<ffffffffa06802a0>] > xenvif_get_ethtool_stats+0x50/0x80 [xen_netback]
This appears to be a dom0 kernel issue rather than a hypervisor issue, I've (hopefully) reassigned accordingly. While we work out a proper fix, since the error appears to be in the ethtool stats gathering code I suspect that there might be a workaround which would be to disable whichever code in dom0 (a monitoring daemon like nagios perhaps?) is calling this path. > May 26 09:18:59 servername kernel: [31526.937807] PGD b243c067 PUD b243d067 > PMD 8a56c067 PTE 0 > May 26 09:18:59 servername kernel: [31526.937813] Oops: 0000 [#1] SMP > May 26 09:18:59 servername kernel: [31526.937817] Modules linked in: > dm_snapshot dm_bufio binfmt_misc xt_tcpudp xt_physdev iptable_filter > ip_tables x_tables xen_netback xen_blkback xen_gntdev xen_evtchn xenfs > xen_privcmd nfsd auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc > ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp > libiscsi_tcp libiscsi scsi_transport_iscsi bridge stp llc nls_utf8 nls_cp437 > vfat fat joydev intel_powerclamp coretemp crc32_pclmul ghash_clmulni_intel > ttm evdev aesni_intel ipmi_devintf iTCO_wdt iTCO_vendor_support aes_x86_64 > drm_kms_helper acpi_power_meter dcdbas lrw gf128mul glue_helper tpm_tis tpm > drm i2c_algo_bit ablk_helper processor i2c_core lpc_ich ipmi_si > ipmi_msghandler i7core_edac thermal_sys cryptd mfd_core button psmouse pcspkr > serio_raw shpchp wmi edac_core loop autofs4 ext4 crc16 mbcache jbd2 dm_mod > hid_generic usbhid hid sg sr_mod cdrom ses sd_mod enclosure ata_generic > crc32c_intel lpfc crc_t10dif crct10dif_generic ehci_pci uhci_hcd > crct10dif_pclmul ata_piix ehci_hcd scsi_transport_fc libata megaraid_sas > scsi_tgt usbcore scsi_mod usb_common crct10dif_common bnx2 > May 26 09:18:59 servername kernel: [31526.937917] CPU: 0 PID: 1311 Comm: > snmpd Not tainted 3.16.0-4-amd64 #1 Debian 3.16.7-ckt9-3~deb8u1 > May 26 09:18:59 servername kernel: [31526.937922] Hardware name: Dell Inc. > PowerEdge R610/0F0XJ6, BIOS 6.4.0 07/23/2013 > May 26 09:18:59 servername kernel: [31526.937927] task: ffff88008a86a250 ti: > ffff880002b4c000 task.ti: ffff880002b4c000 > May 26 09:18:59 servername kernel: [31526.937931] RIP: > e030:[<ffffffffa06802a0>] [<ffffffffa06802a0>] > xenvif_get_ethtool_stats+0x50/0x80 [xen_netback] > May 26 09:18:59 servername kernel: [31526.937939] RSP: e02b:ffff880002b4fd70 > EFLAGS: 00010283 > May 26 09:18:59 servername kernel: [31526.937942] RAX: ffffc90013a14f38 RBX: > 000000000230f940 RCX: ffff92008ea28c88 > May 26 09:18:59 servername kernel: [31526.937946] RDX: ffff88008ecadc00 RSI: > ffffc90013a4b190 RDI: ffff88008da7c000 > May 26 09:18:59 servername kernel: [31526.937949] RBP: ffff880002b4fe10 R08: > ffffffffa06827e0 R09: 0000000000000006 > May 26 09:18:59 servername kernel: [31526.937953] R10: 000000000010ebb8 R11: > 0000000000000246 R12: 0000000000000005 > May 26 09:18:59 servername kernel: [31526.937957] R13: ffff88008da7c000 R14: > ffffffffa0682640 R15: ffff88008ecadc00 > May 26 09:18:59 servername kernel: [31526.937965] FS: 00007f93bcc9e700(0000) > GS:ffff8800b2a00000(0000) knlGS:0000000000000000 > May 26 09:18:59 servername kernel: [31526.937969] CS: e033 DS: 0000 ES: 0000 > CR0: 000000008005003b > May 26 09:18:59 servername kernel: [31526.937973] CR2: ffffc90013a4b158 CR3: > 00000000899ff000 CR4: 0000000000002660 > May 26 09:18:59 servername kernel: [31526.937977] Stack: > May 26 09:18:59 servername kernel: [31526.937979] ffffffff814225f1 > 0000000400114813 00007fff3fff32a8 0000000000000000 > May 26 09:18:59 servername kernel: [31526.937985] ffff880002b4ff18 > 0000001d3fff32a0 ffff880002b4fde0 ffffffff814039a6 > May 26 09:18:59 servername kernel: [31526.937990] 000000050000001d > ffff880000000005 ffffffff81420455 00007fff3fff3280 > May 26 09:18:59 servername kernel: [31526.937995] Call Trace: > May 26 09:18:59 servername kernel: [31526.938003] [<ffffffff814225f1>] ? > dev_ethtool+0x921/0x1ac0 > May 26 09:18:59 servername kernel: [31526.938009] [<ffffffff814039a6>] ? > ___sys_recvmsg+0x136/0x2a0 > May 26 09:18:59 servername kernel: [31526.938014] [<ffffffff81420455>] ? > netdev_run_todo+0x55/0x2f0 > May 26 09:18:59 servername kernel: [31526.938020] [<ffffffff8143310f>] ? > dev_ioctl+0x19f/0x590 > May 26 09:18:59 servername kernel: [31526.938026] [<ffffffff8118e148>] ? > kfree+0x118/0x220 > May 26 09:18:59 servername kernel: [31526.938033] [<ffffffff811e330a>] ? > fsnotify_clear_marks_by_inode+0x2a/0x110 > May 26 09:18:59 servername kernel: [31526.938038] [<ffffffff814011fd>] ? > sock_do_ioctl+0x3d/0x50 > May 26 09:18:59 servername kernel: [31526.938043] [<ffffffff81401718>] ? > sock_ioctl+0x1e8/0x2c0 > May 26 09:18:59 servername kernel: [31526.938048] [<ffffffff811ba2ff>] ? > do_vfs_ioctl+0x2cf/0x4b0 > May 26 09:18:59 servername kernel: [31526.938054] [<ffffffff8108510c>] ? > task_work_run+0x9c/0xd0 > May 26 09:18:59 servername kernel: [31526.938059] [<ffffffff811ba561>] ? > SyS_ioctl+0x81/0xa0 > May 26 09:18:59 servername kernel: [31526.938065] [<ffffffff8151110a>] ? > int_signal+0x12/0x17 > May 26 09:18:59 servername kernel: [31526.938070] [<ffffffff81510e4d>] ? > system_call_fast_compare_end+0x10/0x15 > May 26 09:18:59 servername kernel: [31526.938073] Code: 41 0f b7 30 48 8b 8f > f8 08 00 00 48 8d 04 f5 00 00 00 00 48 c1 e6 06 48 29 c6 48 8d 04 31 4a 8d 8c > 11 58 62 03 00 48 01 ce 31 c9 <48> 03 88 20 62 03 00 48 05 58 62 03 00 48 39 > f0 75 ee 49 83 c0 > May 26 09:18:59 servername kernel: [31526.938109] RIP [<ffffffffa06802a0>] > xenvif_get_ethtool_stats+0x50/0x80 [xen_netback] > May 26 09:18:59 servername kernel: [31526.938116] RSP <ffff880002b4fd70> > May 26 09:18:59 servername kernel: [31526.938118] CR2: ffffc90013a4b158 > May 26 09:18:59 servername kernel: [31526.938124] ---[ end trace > b709685b97b0c981 ] > > ---- System Information: > Debian Release: 8.0 > APT prefers stable > APT policy: (500, 'stable') > Architecture: amd64 (x86_64) > > Kernel: Linux 3.16.0-4-amd64 (SMP w/24 CPU cores) > Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.us-ascii (charmap=UTF-8) (ignored: > LC_ALL set to en_AU.UTF-8) > Shell: /bin/sh linked to /bin/dash > Init: systemd (via /run/systemd/system) > > xen-hypervisor-4.4-amd64 depends on no packages. > > Versions of packages xen-hypervisor-4.4-amd64 recommends: > ii xen-utils-4.4 4.4.1-9 > > xen-hypervisor-4.4-amd64 suggests no packages. > > -- no debconf information > > _______________________________________________ > Pkg-xen-devel mailing list > pkg-xen-de...@lists.alioth.debian.org > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-xen-devel > -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". 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