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





2009/5/27 Evan Borgstrom <evan-libvirt 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 fatbox ca> - FatBox Inc.
Find me on LinkedIn - http://www.linkedin.com/in/evanb

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