Re: Regarding kernel opps after patchng lngo's RT_PREEMPT

[Steven Rostedt <rostedt@goodmis.org>]

[ I believe you wanted LKML and not majordomo, also CC'd Ingo since he's
the maintainer of the -rt patch ]

On Fri, 2007-01-19 at 16:20 +0530, Alim Akhtar wrote:
> 
> Dear Steven/Thomas Gleixner
> 
> i am using linux.2.6.14 + patch-2.6.14-rt22 for a iMX21 based coustom
> board.

Could you try 2.6.20-rc5-rt7.  It's hard to debug a kernel that old.
Is there any reason you are not using the latest?

-- Steve

[ keeping rest of email for those that haven't read it yet. ]

> when i have ported the image to board i got the following error just
> after kernel completed its uncompression.
> 
> Uncompressing
> Linux........................................................... done
> vu Guillaume, booting the kernel.
> NOT Creating MX21 tags...Done.
> BUG: bad raw irq-flag value 600000d3, swapper/0!
> Function entered at [<c00232bc>] from [<c0053af0>]
>  r4 = C019E000
> Function entered at [<c0053aa0>] from [<c01777b8>]
> Function entered at [<c0177304>] from [<c0058534>]
> Function entered at [<c00584ec>] from [<c0178ba4>]
>  r8 = C001A0D0  r7 = 00000000  r6 = C01A8DD8  r5 = C0008708
>  r4 = C019E000
> Function entered at [<c0178b74>] from [<c0008708>]
>  r7 = C01AA2E4  r6 = C001B0C4  r5 = C01C37AC  r4 = 00053175
> Function entered at [<c00086f4>] from [<c00080a0>]
>  r5 = C01C37AC  r4 = 00053175
> ---------------------------
> | preempt count: 00000001 ]
> | 1-level deep critical section nesting:
> ----------------------------------------
> .. [<00000000>] .... .....[<00000000>] ..   ( <=
> ------------------------------
> | showing all locks held by: |  (swapper/0 [c01a8dd8, 120]):
> ------------------------------
> 
> #001:             [c01b42ac] {kernel_sem.lock}
> ... acquired at:
> 
> After the it is booting nornaly but after some time its comtinuosly
> throughing some BUG messeges...no clue how to solve this.
> i am attaching the whole capture file of boot process as well
> as .config file.
> one more thing, when i tried the same after disabling CONFIG_HARDIRQS,
> its worked fine.
> 
> please help me out in this.
> if any body have faced such problem, please give your vaulable
> suggestions.
> will be appricated.
> 
> Regards
> Alim Akhtar
> 
> 
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Sorry, but I'm forwarding it to LKML ;)


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