[Users] 042stab092_2 kernel panic on vzctl set $ID --netdev_add ib0

Kir Kolyshkin kir at openvz.org
Fri Aug 1 10:32:04 PDT 2014


The best course of action is to file a bug in bugzilla.openvz.org.

On 07/31/2014 07:26 AM, ml-openvz-eyck at kuszelas.eu wrote:
> Does anyone else encounter this:
>
>
> [ 1091.907646] kobject_add_internal failed for net with -EEXIST, don't try to register things with the same name in the same directory.
> [ 1092.489883] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
> [ 1092.871674] IP: [<ffffffff8136ded1>] __ve_device_subscribe+0x61/0xb0
> [ 1093.181363] PGD 406ead0067 PUD 406f15c067 PMD 0
> [ 1093.406688] Oops: 0000 [#1] SMP
> [ 1093.564385] last sysfs file: /sys/devices/virtual/net/lo/operstate
> [ 1093.865770] CPU 91
> [ 1093.959093] Modules linked in: vzethdev(U) vznetdev(U) simfs(U) vzrst(U) nf_nat(U) nf_conntrack_ipv4(U) nf_defrag_ipv4(U) vzcpt(U) nfs(U) nfs_acl(U) auth_rpcgss(U) fscache(U) lockd(U) sunrpc(U) nf_conntrack(U) vzdquota(U) vzmon(U) vzdev(U) xt_length(U) xt_hl(U) xt_tcpmss(U) xt_TCPMSS(U) iptable_mangle(U) iptable_filter(U) xt_multiport(U) xt_limit(U) xt_dscp(U) ipt_REJECT(U) ip_tables(U) vzevent(U) bridge(U) bonding(U) 8021q(U) garp(U) stp(U) llc(U) ib_ipoib(U) ib_umad(U) rdma_ucm(U) rdma_cm(U) ib_addr(U) iw_cm(U) ib_uverbs(U) ib_cm(U) ib_sa(U) ipv6(U) snd_pcsp(U) iTCO_wdt(U) iTCO_vendor_support(U) snd_pcm(U) snd_page_alloc(U) serio_raw(U) ib_mthca(U) snd_timer(U) snd(U) lpc_ich(U) hpwdt(U) soundcore(U) mfd_core(U) hpilo(U) ib_mad(U) ib_core(U) wmi(U) hed(U) power_meter(U) xfs(U) dm_mod(U) sg(U) sd_mod(U) crc_t10dif(U) qla2xxx(U) scsi_transport_fc(U) scsi_tgt(U) tg3(U) hwmon(U) ptp(U) pps_core(U) hpsa(U) [last unloaded: scsi_wait_scan]
> [ 1098.033395]
> [ 1098.106552] Pid: 14000, comm: vzctl veid: 0 Tainted: G        W  ---------------    2.6.32 #1 042stab092_2 HP ProLiant DL580 Gen8
> [ 1098.715190] RIP: 0010:[<ffffffff8136ded1>]  [<ffffffff8136ded1>] __ve_device_subscribe+0x61/0xb0
> [ 1099.144851] RSP: 0018:ffff884072b6fc48  EFLAGS: 00010287
> [ 1099.403845] RAX: ffff886071bd8c78 RBX: ffff886071bd8c40 RCX: 0000000000000000
> [ 1099.752091] RDX: 0000000000000080 RSI: 0000000000000040 RDI: ffff886071bd8c50
> [ 1100.100247] RBP: ffff884072b6fc68 R08: 0000000000000000 R09: ffff886071bd8c40
> [ 1100.448698] R10: 00000000fffffffd R11: 0000000000000000 R12: fffffffffffffff0
> [ 1100.796921] R13: ffff88407fc3a000 R14: 0000000000000000 R15: 0000000000000006
> [ 1101.140755] FS:  00007f1906d52700(0000) GS:ffff884101000000(0000) knlGS:0000000000000000
> [ 1101.535966] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [ 1101.816138] CR2: 0000000000000040 CR3: 000000406fbcf000 CR4: 00000000001407e0
> [ 1102.164918] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 1102.513310] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [ 1102.861672] Process vzctl (pid: 14000, veid: 0, threadinfo ffff884072b6e000, task ffff8840721223c0)
> [ 1103.303916] Stack:
> [ 1103.401913]  ffff884072b6fc68 ffff88407fc3a000 ffff8860705485e8 ffff8820729aa458
> [ 1103.754374] <d> ffff884072b6fcb8 ffffffff8136e97d ffff884072b6fcb8 ffffffff8146b0b5
> [ 1104.128636] <d> ffff884072b6fcb8 ffff886070548020 ffff8840721223c0 ffffffff81a49ec0
> [ 1104.511827] Call Trace:
> [ 1104.631294]  [<ffffffff8136e97d>] ve_netdev_add+0xbd/0x1b0
> [ 1104.898834]  [<ffffffff8146b0b5>] ? netdev_register_kobject+0x125/0x170
> [ 1105.221376]  [<ffffffff81456236>] __dev_change_net_namespace+0x246/0x350
> [ 1105.548326]  [<ffffffffa03e0d3c>] real_ve_dev_map+0xfc/0x270 [vzmon]
> [ 1105.858521]  [<ffffffffa03e1070>] vzcalls_ioctl+0x1c0/0xaa0 [vzmon]
> [ 1106.164570]  [<ffffffff8116739c>] ? handle_mm_fault+0x21c/0x300
> [ 1106.456103]  [<ffffffffa0363020>] ? vzctl_get_handler+0x20/0x100 [vzdev]
> [ 1106.784444]  [<ffffffffa0363154>] vzctl_ioctl+0x54/0x80 [vzdev]
> [ 1107.074044]  [<ffffffff811bc81a>] vfs_ioctl+0x2a/0xa0
> [ 1107.320666]  [<ffffffff810df041>] ? cgroup_task_migrate+0xb1/0xf0
> [ 1107.618062]  [<ffffffff811bce4e>] do_vfs_ioctl+0x7e/0x5a0
> [ 1107.881345]  [<ffffffff810df1f8>] ? cgroup_attach_task+0x178/0x210
> [ 1108.182670]  [<ffffffff811bd3bf>] sys_ioctl+0x4f/0x80
> [ 1108.428926]  [<ffffffff8100b182>] system_call_fastpath+0x16/0x1b
> [ 1108.722594] Code: 85 c0 48 89 c3 74 5b 4c 89 e7 4c 89 28 4c 89 60 08 e8 24 63 ff ff 48 8d 43 38 49 8d 74 24 50 48 8d 7b 10 48 89 43 38 48 89 43 40 <49> 8b 54 24 50 e8 65 c0 f2 ff 49 8b 95 c0 01 00 00 49 8d b5 c0
> [ 1109.649252] RIP  [<ffffffff8136ded1>] __ve_device_subscribe+0x61/0xb0
> [ 1109.963474]  RSP <ffff884072b6fc48>
> [ 1110.133486] CR2: 0000000000000040
> [ 1110.295011] Tainting kernel with flag 0x7
> [ 1110.490481] Pid: 14000, comm: vzctl veid: 0 Tainted: G        W  ---------------    2.6.32 #1
> [ 1110.945369] Call Trace:
> [ 1111.064467]  [<ffffffff81073229>] ? add_taint+0x69/0x70
> [ 1111.319298]  [<ffffffff81524743>] ? oops_end+0x53/0xf0
> [ 1111.569884]  [<ffffffff81518349>] ? no_context+0x1eb/0x216
> [ 1111.837677]  [<ffffffff8129008b>] ? put_dec+0x10b/0x110
> [ 1112.092812]  [<ffffffff815184e2>] ? __bad_area_nosemaphore+0x16e/0x18d
> [ 1112.411168]  [<ffffffff8151855b>] ? bad_area+0x45/0x4e
> [ 1112.661741]  [<ffffffff81047ca3>] ? __do_page_fault+0x3b3/0x490
> [ 1112.950716]  [<ffffffff810522c3>] ? __wake_up+0x53/0x70
> [ 1113.205544]  [<ffffffff8147e20f>] ? netlink_broadcast+0x1cf/0x4e0
> [ 1113.503142]  [<ffffffff81292480>] ? sprintf+0x40/0x50
> [ 1113.749294]  [<ffffffff815266cb>] ? do_page_fault+0x3b/0xa0
> [ 1114.020984]  [<ffffffff81523ae5>] ? page_fault+0x25/0x30
> [ 1114.280080]  [<ffffffff8136ded1>] ? __ve_device_subscribe+0x61/0xb0
> [ 1114.585850]  [<ffffffff8136debc>] ? __ve_device_subscribe+0x4c/0xb0
> [ 1114.891819]  [<ffffffff8136e97d>] ? ve_netdev_add+0xbd/0x1b0
> [ 1115.168133]  [<ffffffff8146b0b5>] ? netdev_register_kobject+0x125/0x170
> [ 1115.490733]  [<ffffffff81456236>] ? __dev_change_net_namespace+0x246/0x350
> [ 1115.826104]  [<ffffffffa03e0d3c>] ? real_ve_dev_map+0xfc/0x270 [vzmon]
> [ 1116.144547]  [<ffffffffa03e1070>] ? vzcalls_ioctl+0x1c0/0xaa0 [vzmon]
> [ 1116.458722]  [<ffffffff8116739c>] ? handle_mm_fault+0x21c/0x300
> [ 1116.747487]  [<ffffffffa0363020>] ? vzctl_get_handler+0x20/0x100 [vzdev]
> [ 1117.074999]  [<ffffffffa0363154>] ? vzctl_ioctl+0x54/0x80 [vzdev]
> [ 1117.372174]  [<ffffffff811bc81a>] ? vfs_ioctl+0x2a/0xa0
> [ 1117.627077]  [<ffffffff810df041>] ? cgroup_task_migrate+0xb1/0xf0
> [ 1117.924431]  [<ffffffff811bce4e>] ? do_vfs_ioctl+0x7e/0x5a0
> [ 1118.196182]  [<ffffffff810df1f8>] ? cgroup_attach_task+0x178/0x210
> [ 1118.497994]  [<ffffffff811bd3bf>] ? sys_ioctl+0x4f/0x80
> [ 1118.752807]  [<ffffffff8100b182>] ? system_call_fastpath+0x16/0x1b
> [ 1119.055107] ---[ end trace 1cfe8c6d73ddafba ]---
> [ 1119.281215] Kernel panic - not syncing: Fatal exception
>
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