On Mon, Jun 28, 2010 at 11:25:04AM +0530, Harishkumar V wrote:

BUG: soft lockup - CPU#0 stuck for 61s! [linphone-3:764]
Modules linked in:

Pid: 764, comm:           linphone-3
CPU: 0    Not tainted  (2.6.28-rc9 #14)
PC is at handle_IRQ_event+0x28/0x74
LR is at handle_level_irq+0x94/0xec

That suggests a stuck IRQ.

pc : [<c008cc30>]    lr : [<c008e18c>]    psr: 48000113
sp : c7eede90  ip : c7eedeb0  fp : c7eedeac
r10: 0000001d  r9 : c0638ba8  r8 : 00000000
r7 : 0000005c  r6 : 00000000  r5 : 0000005c  r4 : c7a1b360
r3 : 00000000  r2 : 0000006e  r1 : c7a1b360  r0 : 0000005c

which might be irq 92.

Exception stack(0xc7eede48 to 0xc7eede90)
de40:                   0000005c c7a1b360 0000006e 00000000 c7a1b360
0000005c
de60: 00000000 0000005c 00000000 c0638ba8 0000001d c7eedeac c7eedeb0
c7eede90
de80: c008e18c c008cc30 48000113 ffffffff
 r5:d8200000 r4:ffffffff

These messages should continue - and contain some further useful
information to confirm the stuck IRQ.