Re: BUG: soft lockup - CPU#0 stuck for 61s!

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Hi,

can u guide how to debug this and have an fix/workaround for this.
i see softlockup_tick and many funtions in the trace message. how to pinpoint where it got struck.

On Sun, Jun 27, 2010 at 9:47 PM, Harishkumar V <harishpresent@xxxxxxxxx> wrote:
hi,

oh is it, can u explain, how to find out it.....which portion of the code. i see only this,


handle_IRQ_event+0x28/0x74
LR is at handle_level_irq+0x94/0xec
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
Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5387d  Table: 87f48018  DAC: 00000015
[<c003b370>] (show_regs+0x0/0x50) from [<c008c738>] (softlockup_tick+0x108/0x148)
 r5:00000104 r4:000000c7

On Sun, Jun 27, 2010 at 6:36 PM, Michael Blizek <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Hi!

On 14:09 Sun 27 Jun     , Harishkumar V wrote:
> MMU is available in ARM.
>
> if the same(cpu softlockup) exists on x86, how to handle this, u told in
> earlier mail,
>
> "This is only the stack trace of the softlockup check, not the code which
> got stuck", how to find out at which point, the code got struck, in x86.

Usually the stack trace that you have sent already contains the code which got
stuck...

       -Michi
--
programing a layer 3+4 network protocol for mesh networks
see http://michaelblizek.twilightparadox.com




--
Thanks and Regards,
Harish Kumar. V



--
Thanks and Regards,
Harish Kumar. V

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