[libvirt] libvirtd 0.6.3 - Kernel Panic - 2.6.27-openvz-briullov.1

[Anton Protopopov]

2009/5/27 Evan Borgstrom <evan-libvirt at fatbox.ca>

> Hi,
>
> I have a machine running 4 OpenVZ VE's and am looking at libvirt as a
> management tool.
>
> My machine is a Sun Fire X2250 with 1 CPU and 4GB of RAM running Gentoo.
>
> When I start libvirtd the output below appears in the dmesg output and the
> machine continues to function for about 30s longer before it starts dumping
> piles of continuous backtrace onto the console.
>
> Can I provide anymore info that will help diagnose this problem or should I
> open a bug about this?
>

This is a bug in OpenVZ kernel and it is "fixed" already. See
http://bugzilla.openvz.org/show_bug.cgi?id=1221


>
> Thanks!
> -Evan
>
> [  426.613841] WARNING: at fs/sysfs/dir.c:463 sysfs_add_one+0x2a/0x36()
> [  426.613843] sysfs: duplicate filename 'lo' can not be created
> [  426.613845] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat
> nf_conntrack_ipv4 xt_state nf_conntrack ipt_REJECT iptable_filter ip_tables
> simfs vznetdev vzrst vzcpt tun vzdquota vzethdev vzmon vzdev 8021q bridge
> stp llc
> [  426.613859] Pid: 17966, comm: libvirtd Not tainted
> 2.6.27-openvz-briullov.1-r1-fb3 #1
> [  426.613863]  [<c022291e>] warn_slowpath+0x4b/0x6c
> [  426.613869]  [<c0333d00>] ? vsnprintf+0x233/0x531
> [  426.613874]  [<c02294d1>] ? __sysctl_head_next+0x14/0x99
> [  426.613878]  [<c032f826>] ? idr_get_empty_slot+0x13c/0x1f0
> [  426.613883]  [<c032f9aa>] ? ida_get_new_above+0xd0/0x171
> [  426.613887]  [<c028f9ca>] ? find_inode+0x1f/0x5b
> [  426.613891]  [<c02bbf5c>] ? sysfs_ilookup_test+0x0/0x11
> [  426.613894]  [<c028fac5>] ? ifind+0x32/0x71
> [  426.613897]  [<c02bc129>] ? sysfs_find_dirent+0x16/0x27
> [  426.613900]  [<c02bc2b9>] sysfs_add_one+0x2a/0x36
> [  426.613903]  [<c02bc773>] create_dir+0x43/0x72
> [  426.613906]  [<c02bc7e9>] sysfs_create_dir+0x47/0x5b
> [  426.613909]  [<c033028b>] ? kobject_get+0x12/0x17
> [  426.613912]  [<c0330390>] kobject_add_internal+0xb2/0x153
> [  426.613915]  [<c03304dc>] kobject_add_varg+0x35/0x41
> [  426.613919]  [<c033054d>] kobject_add+0x43/0x49
> [  426.613921]  [<c03888e8>] device_add+0x7f/0x470
> [  426.613926]  [<c027cd9d>] ? __percpu_alloc_mask+0xb6/0xd5
> [  426.613931]  [<c023e5e7>] ? ub_slab_charge+0x4c/0x65
> [  426.613935]  [<c03330fe>] ? strlcpy+0x17/0x49
> [  426.613938]  [<c045a40c>] netdev_register_kobject+0x59/0x5c
> [  426.613943]  [<c0451afe>] register_netdevice+0x270/0x332
> [  426.613947]  [<c0451bf2>] register_netdev+0x32/0x3f
> [  426.613950]  [<c03ad540>] loopback_net_init+0x34/0x63
> [  426.613955]  [<c044d1eb>] setup_net+0x71/0xbb
> [  426.613958]  [<c044d534>] copy_net_ns+0x3d/0x99
> [  426.613960]  [<c023712b>] create_new_namespaces+0x109/0x196
> [  426.613965]  [<c0237370>] copy_namespaces+0x62/0x92
> [  426.613967]  [<c0221a50>] copy_process+0x8df/0x105a
> [  426.613971]  [<c02222b6>] do_fork_pid+0xeb/0x25a
> [  426.613973]  [<c027f8a2>] ? __fput+0x138/0x140
> [  426.613977]  [<c0222438>] do_fork+0x13/0x15
> [  426.613980]  [<c02023cb>] sys_clone+0x1f/0x21
> [  426.613983]  [<c020399e>] syscall_call+0x7/0xb
> [  426.613986]  [<c04f0000>] ? init_scattered_cpuid_features+0x4f/0x7d
> [  426.613992]  =======================
> [  426.613994] ---[ end trace 3809b0ba52b812c7 ]---
> [  426.613997] kobject_add_internal failed for lo with -EEXIST, don't try
> to register things with the same name in the same directory.
> [  426.614001] Pid: 17966, comm: libvirtd Tainted: G        W
> 2.6.27-openvz-briullov.1-r1-fb3 #1
> [  426.614004]  [<c033041f>] kobject_add_internal+0x141/0x153
> [  426.614008]  [<c03304dc>] kobject_add_varg+0x35/0x41
> [  426.614011]  [<c033054d>] kobject_add+0x43/0x49
> [  426.614014]  [<c03888e8>] device_add+0x7f/0x470
> [  426.614017]  [<c027cd9d>] ? __percpu_alloc_mask+0xb6/0xd5
> [  426.614020]  [<c023e5e7>] ? ub_slab_charge+0x4c/0x65
> [  426.614024]  [<c03330fe>] ? strlcpy+0x17/0x49
> [  426.614027]  [<c045a40c>] netdev_register_kobject+0x59/0x5c
> [  426.614030]  [<c0451afe>] register_netdevice+0x270/0x332
> [  426.614033]  [<c0451bf2>] register_netdev+0x32/0x3f
> [  426.614036]  [<c03ad540>] loopback_net_init+0x34/0x63
> [  426.614040]  [<c044d1eb>] setup_net+0x71/0xbb
> [  426.614042]  [<c044d534>] copy_net_ns+0x3d/0x99
> [  426.614045]  [<c023712b>] create_new_namespaces+0x109/0x196
> [  426.614048]  [<c0237370>] copy_namespaces+0x62/0x92
> [  426.614051]  [<c0221a50>] copy_process+0x8df/0x105a
> [  426.614054]  [<c02222b6>] do_fork_pid+0xeb/0x25a
> [  426.614057]  [<c027f8a2>] ? __fput+0x138/0x140
> [  426.614060]  [<c0222438>] do_fork+0x13/0x15
> [  426.614063]  [<c02023cb>] sys_clone+0x1f/0x21
> [  426.614066]  [<c020399e>] syscall_call+0x7/0xb
> [  426.614068]  [<c04f0000>] ? init_scattered_cpuid_features+0x4f/0x7d
> [  426.614073]  =======================
>
> --
> Evan Borgstrom <evan at fatbox.ca> - FatBox Inc.
> Find me on LinkedIn - http://www.linkedin.com/in/evanb
>
> --
> Libvir-list mailing list
> Libvir-list at redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list
>
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