[Xen-bugs] [Bug 1612] Can't start VM when vif set and udev version is greater than 151

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1612





------- Comment #40 from silversens@xxxxxxxxx  2010-07-14 11:35 -------
I shouldn't have answered so early.
Even with udev 159, after a few VMs, I get once more a kernel panic :

Jul 14 19:42:46 fussa kernel: [ 2870.031938] eth0: port 4(vif3.0) entering
disabled state
Jul 14 19:42:47 fussa kernel: [ 2871.111493] BUG: unable to handle kernel NULL
pointer dereference at 0000000000000110
Jul 14 19:42:47 fussa kernel: [ 2871.111853] IP: [<ffffffff81339761>]
netback_uevent+0xb9/0x105
Jul 14 19:42:47 fussa kernel: [ 2871.112043] PGD 4975c067 PUD 34ed6067 PMD 0 
Jul 14 19:42:47 fussa kernel: [ 2871.112222] Oops: 0000 [#1] SMP 
Jul 14 19:42:47 fussa kernel: [ 2871.112392] last sysfs file:
/sys/devices/vif-4-0/uevent
Jul 14 19:42:47 fussa kernel: [ 2871.112465] CPU 1 
Jul 14 19:42:47 fussa kernel: [ 2871.112732] Modules linked in:
Jul 14 19:42:47 fussa kernel: [ 2871.112732] Pid: 2441, comm: udevd Not tainted
2.6.32.15 #4 X7DVL-3
Jul 14 19:42:47 fussa kernel: [ 2871.112732] RIP: e030:[<ffffffff81339761>] 
[<ffffffff81339761>] netback_uevent+0xb9/0x105
Jul 14 19:42:47 fussa kernel: [ 2871.112732] RSP: e02b:ffff88003cb53d98 
EFLAGS: 00010246
Jul 14 19:42:47 fussa kernel: [ 2871.112732] RAX: 0000000000000000 RBX:
ffff88003d9ec600 RCX: 0000000000800079
Jul 14 19:42:47 fussa kernel: [ 2871.112732] RDX: ffff88003d921240 RSI:
ffffea0000d77f38 RDI: ffff88003d9ec640
Jul 14 19:42:47 fussa udevd[1013]: worker [2441] unexpectedly returned with
status 0x0009 
Jul 14 19:42:47 fussa kernel: [ 2871.112732] RBP: ffff88003cb53dc8 R08:
0000000000000000 R09: 0000000000000073
Jul 14 19:42:47 fussa udevd[1013]: worker [2441] failed while handling
'/devices/vif-4-0' 
Jul 14 19:42:47 fussa kernel: [ 2871.112732] R10: 0000000000000000 R11:
0000000000000000 R12: ffff880037a6b000
Jul 14 19:42:47 fussa kernel: [ 2871.112732] R13: ffff88003d9ec640 R14:
0000000000000000 R15: ffff88003d921440
Jul 14 19:42:47 fussa kernel: [ 2871.112732] FS:  00007fea087736f0(0000)
GS:ffff880002320000(0000) knlGS:0000000000000000
Jul 14 19:42:47 fussa kernel: [ 2871.112732] CS:  e033 DS: 0000 ES: 0000 CR0:
000000008005003b
Jul 14 19:42:47 fussa kernel: [ 2871.112732] CR2: 0000000000000110 CR3:
0000000044347000 CR4: 0000000000002660
Jul 14 19:42:47 fussa kernel: [ 2871.112732] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Jul 14 19:42:47 fussa kernel: [ 2871.112732] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Jul 14 19:42:47 fussa kernel: [ 2871.112732] Process udevd (pid: 2441,
threadinfo ffff88003cb52000, task ffff880037a68000)
Jul 14 19:42:47 fussa kernel: [ 2871.112732] Stack:
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  ffffffff8179ece7 ffff88003d9ec640
ffff880037a6b000 ffff88003d9ec600
Jul 14 19:42:47 fussa kernel: [ 2871.112732] <0> ffffffff818c1b18
ffff8800625db000 ffff88003cb53df8 ffffffff8132b518
Jul 14 19:42:47 fussa kernel: [ 2871.112732] <0> ffff88003d9ec640
ffff880037a6b000 ffff8800cf83d780 ffff88003d9ec650
Jul 14 19:42:47 fussa kernel: [ 2871.112732] Call Trace:
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff8132b518>]
xenbus_uevent_backend+0x90/0xab
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff813a52ca>]
dev_uevent+0x102/0x146
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff813a5fb1>]
show_uevent+0x81/0xd8
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff813a4f8c>]
dev_attr_show+0x22/0x49
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff810d470f>] ?
__get_free_pages+0x9/0x46
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff81157c6e>]
sysfs_read_file+0xac/0x12e
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff81107076>]
vfs_read+0xa6/0x103
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff81107189>]
sys_read+0x45/0x69
Jul 14 19:42:47 fussa kernel: [ 2871.112732]  [<ffffffff81036a82>]
system_call_fastpath+0x16/0x1b
Jul 14 19:42:47 fussa logger: /etc/xen/scripts/vif-bridge: iptables setup
failed. This may affect guest networking.
Jul 14 19:42:48 fussa kernel: [ 2871.112732] Code: 50 4c 89 ff e8 f3 68 dc ff
48 c7 c7 e0 2a 8c 81 e8 a5 8d 2c 00 4c 89 ef e8 cb e1 06 00 48 85 c0 74 37 48
83 78 08 00 74 30 31 c0 <49> 8b 96 10 01 00 00 48 c7 c6 70 c6 7a 81 4c 89 e7 e8
45 21 f8 
Jul 14 19:42:48 fussa kernel: [ 2871.112732] RIP  [<ffffffff81339761>]
netback_uevent+0xb9/0x105
Jul 14 19:42:48 fussa kernel: [ 2871.112732]  RSP <ffff88003cb53d98>
Jul 14 19:42:48 fussa kernel: [ 2871.112732] CR2: 0000000000000110
Jul 14 19:42:48 fussa kernel: [ 2871.112732] ---[ end trace 1aa77ab8a51e6387
]---


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