Hi,<br><br>I am using an ARMv7 500 mhz board which is running
linux-2.6.28-rc9 kernel.<br>I am running an application which does video
processing on it. At times, the board gets CPU soft lockup and become
freezed.<br><br>Is their any fix/workaround for the following problem.<br>
<br>this is the one, i am getting in the console,<br><br>BUG: soft
lockup -
CPU#0 stuck for 61s! [linphone-3:764]<br>Modules linked in:<br><br>Pid:
764, comm: linphone-3<br>CPU: 0 Not tainted (2.6.28-rc9
#14)<br>
PC is at handle_IRQ_event+0x28/0x74<br>LR is at
handle_level_irq+0x94/0xec<br>pc : [<c008cc30>] lr :
[<c008e18c>] psr: 48000113<br>sp : c7eede90 ip : c7eedeb0 fp :
c7eedeac<br>r10: 0000001d r9 : c0638ba8 r8 : 00000000<br>
r7 : 0000005c r6 : 00000000 r5 : 0000005c r4 : c7a1b360<br>r3 :
00000000 r2 : 0000006e r1 : c7a1b360 r0 : 0000005c<br>Flags: nZcv
IRQs on FIQs on Mode SVC_32 ISA ARM Segment user<br>Control:
10c5387d Table: 87f48018 DAC: 00000015<br>
[<c003b370>] (show_regs+0x0/0x50) from [<c008c738>]
(softlockup_tick+0x108/0x148)<br> r5:00000104 r4:000000c7<br>[<c008c630>]
(softlockup_tick+0x0/0x148) from [<c006f25c>]
(run_local_timers+0x1c/0x20)<br>
r8:c0637d08 r7:00000107 r6:297648b1 r5:c7976cc0 r4:00000000<br>[<c006f240>]
(run_local_timers+0x0/0x20) from [<c006f2dc>]
(update_process_times+0x30/0x60)<br>[<c006f2ac>]
(update_process_times+0x0/<div>0x60) from [<c0081f9c>]
(tick_sched_timer+0x90/0xc4)<br>
r5:c7eede48 r4:c06796d0<br>[<c0081f0c>]
(tick_sched_timer+0x0/0xc4) from [<c007c2dc>]
(__run_hrtimer+0x30/0x70)<br> r7:7fffffff r6:ffffffff r5:c0637d08
r4:c06796d0<br>[<c007c2ac>] (__run_hrtimer+0x0/0x70) from
[<c007cf08>] (hrtimer_interrupt+0x174/0x1e8)<br>
r5:00000107 r4:c06796d0<br>[<c007cd94>]
(hrtimer_interrupt+0x0/0x1e8) from [<c004412c>]
(omap2_gp_timer_interrupt+0x28/0x34)<br>[<c0044104>]
(omap2_gp_timer_interrupt+0x0/0x34) from [<c008cc44>]
(handle_IRQ_event+0x3c/0x74)<br>
[<c008cc08>] (handle_IRQ_event+0x0/0x74) from [<c008e18c>]
(handle_level_irq+0x94/0xec)<br> r7:0000005c r6:00000000 r5:0000005f
r4:c0639b20<br>[<c008e0f8>] (handle_level_irq+0x0/0xec) from
[<c0039068>] (__exception_text_start+0x68/0x88)<br>
r5:c7eedee0 r4:0000005f<br>[<c0039000>]
(__exception_text_start+0x0/0x88) from [<c0039a30>]
(__irq_svc+0x30/0x80)<br>Exception stack(0xc7eede48 to 0xc7eede90)<br>de40:
0000005c c7a1b360 0000006e 00000000 c7a1b360 0000005c<br>
de60: 00000000 0000005c 00000000 c0638ba8 0000001d c7eedeac c7eedeb0
c7eede90<br>de80: c008e18c c008cc30 48000113 ffffffff<br> r5:d8200000
r4:ffffffff<br></div><br clear="all"><br>-- <br>Thanks and Regards,<br>Harish Kumar. V<br>