[Xen-bugs] [Bug 1612] x86-64 : Can't start VM when vif set

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

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


jakubzeman@xxxxxxxxx changed:

           What    |Removed                     |Added
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                 CC|                            |jakubzeman@xxxxxxxxx




------- Comment #9 from jakubzeman@xxxxxxxxx  2010-05-23 08:23 -------
The same problem occures with 2.6.31 - 2.6.33 kenels from
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git - tested with XEN
4.0. Dmesg follows:

May 23 12:36:35 jzeman-x301 kernel: [   72.269452]   alloc irq_desc for 746 on
node 0
May 23 12:36:35 jzeman-x301 kernel: [   72.269459]   alloc kstat_irqs on node 0
May 23 12:36:35 jzeman-x301 kernel: [   72.382098] BUG: unable to handle kernel
NULL pointer dereference at 0000000000000008
May 23 12:36:35 jzeman-x301 kernel: [   72.382110] IP: [<ffffffff81286125>]
netback_uevent+0x29/0xb6
May 23 12:36:35 jzeman-x301 kernel: [   72.382123] PGD bd25f067 PUD bd25e067
PMD 0 
May 23 12:36:35 jzeman-x301 kernel: [   72.382134] Oops: 0000 [#1] SMP 
May 23 12:36:35 jzeman-x301 kernel: [   72.382141] last sysfs file:
/sys/devices/vif-1-0/uevent
May 23 12:36:35 jzeman-x301 kernel: [   72.382146] CPU 1 
May 23 12:36:35 jzeman-x301 kernel: [   72.382151] Modules linked in: i915
drm_kms_helper iwlagn iwlcore evdev [last unloaded: scsi_wait_scan]
May 23 12:36:35 jzeman-x301 kernel: [   72.382172] Pid: 1219, comm: udevd Not
tainted 2.6.32.13 #5 2776LFG
May 23 12:36:35 jzeman-x301 kernel: [   72.382176] RIP:
e030:[<ffffffff81286125>]  [<ffffffff81286125>] netback_uevent+0x29/0xb6
May 23 12:36:35 jzeman-x301 kernel: [   72.382185] RSP: e02b:ffff8800bc0d9da8 
EFLAGS: 00010246
May 23 12:36:35 jzeman-x301 kernel: [   72.382189] RAX: 0000000000000000 RBX:
ffff8800a98a0a00 RCX: 0000000000000000
May 23 12:36:35 jzeman-x301 kernel: [   72.382194] RDX: ffffffff81780559 RSI:
ffff8800a98a0ba8 RDI: 0000000000000000
May 23 12:36:35 jzeman-x301 kernel: [   72.382199] RBP: ffff8800bc0d9dc8 R08:
0000000000000002 R09: 0000000000000073
May 23 12:36:35 jzeman-x301 kernel: [   72.382204] R10: dead000000200200 R11:
dead000000100100 R12: ffff8800bbac2000
May 23 12:36:35 jzeman-x301 kernel: [   72.382209] R13: ffff8800a98a0a00 R14:
ffffffff81869168 R15: ffff8800412dc000
May 23 12:36:35 jzeman-x301 kernel: [   72.382220] FS:  00007fad72c3e790(0000)
GS:ffff88000284b000(0000) knlGS:0000000000000000
May 23 12:36:35 jzeman-x301 kernel: [   72.382225] CS:  e033 DS: 0000 ES: 0000
CR0: 000000008005003b
May 23 12:36:35 jzeman-x301 kernel: [   72.382230] CR2: 0000000000000008 CR3:
00000000bd275000 CR4: 0000000000002660
May 23 12:36:35 jzeman-x301 kernel: [   72.382235] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
May 23 12:36:35 jzeman-x301 kernel: [   72.382241] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
May 23 12:36:35 jzeman-x301 kernel: [   72.382246] Process udevd (pid: 1219,
threadinfo ffff8800bc0d8000, task ffff8800bbf087a0)
May 23 12:36:35 jzeman-x301 kernel: [   72.382252] Stack:
May 23 12:36:35 jzeman-x301 kernel: [   72.382256]  ffff8800a98a0a40
ffff8800bbac2000 ffff8800a98a0a00 ffffffff81869168
May 23 12:36:35 jzeman-x301 kernel: [   72.382257] <0> ffff8800bc0d9df8
ffffffff8127ae28 ffff8800a98a0a40 ffff8800bbac2000
May 23 12:36:35 jzeman-x301 kernel: [   72.382257] <0> ffff8800bd0073c0
ffff8800a98a0a50 ffff8800bc0d9e28 ffffffff812c75b7
May 23 12:36:35 jzeman-x301 kernel: [   72.382257] Call Trace:
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  [<ffffffff8127ae28>]
xenbus_uevent_backend+0x90/0xab
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  [<ffffffff812c75b7>]
dev_uevent+0x102/0x146
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  [<ffffffff812c8282>]
show_uevent+0x81/0xd7
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  [<ffffffff812c7279>]
dev_attr_show+0x22/0x49
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  [<ffffffff81163bf4>]
sysfs_read_file+0xac/0x12e
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  [<ffffffff81111f5b>]
vfs_read+0xa6/0x103
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  [<ffffffff8111206e>]
sys_read+0x45/0x69
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  [<ffffffff8103bcc2>]
system_call_fastpath+0x16/0x1b
May 23 12:36:35 jzeman-x301 kernel: [   72.382257] Code: 90 90 55 48 89 e5 41
56 41 55 41 54 49 89 f4 53 48 89 fb 48 8d 7f 40 e8 2c 3b 04 00 48 8b 73 08 31
c9 31 ff 48 c7 c2 59 05 78 81 <4c> 8b 68 08 e8 1c 39 ff ff 48 3d 00 f0 ff ff 49
89 c6 76 18 41 
May 23 12:36:35 jzeman-x301 kernel: [   72.382257] RIP  [<ffffffff81286125>]
netback_uevent+0x29/0xb6
May 23 12:36:35 jzeman-x301 kernel: [   72.382257]  RSP <ffff8800bc0d9da8>
May 23 12:36:35 jzeman-x301 kernel: [   72.382257] CR2: 0000000000000008
May 23 12:36:35 jzeman-x301 kernel: [   72.382257] ---[ end trace
9e5ac759cd51abe1 ]---
May 23 12:36:36 jzeman-x301 kernel: [   72.519619] tun: Universal TUN/TAP
device driver, 1.6
May 23 12:36:36 jzeman-x301 kernel: [   72.519626] tun: (C) 1999-2004 Max
Krasnyansky <maxk@xxxxxxxxxxxx>
May 23 12:36:36 jzeman-x301 kernel: [   72.552000] device tap1.0 entered
promiscuous mode
May 23 12:36:36 jzeman-x301 kernel: [   72.552051] eth0: port 2(tap1.0)
entering forwarding state
May 23 12:36:36 jzeman-x301 kernel: [   72.584264]   alloc irq_desc for 745 on
node 0
May 23 12:36:36 jzeman-x301 kernel: [   72.584273]   alloc kstat_irqs on node 0
May 23 12:36:46 jzeman-x301 kernel: [   82.978152] tap1.0: no IPv6 routers
present


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