Re: Oops on ehci_hcd when booting 3.0.0-rc2 on panda

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On Thu, Aug 11, 2011 at 1:37 PM, Ohad Ben-Cohen <ohad@xxxxxxxxxx> wrote:
> + Paul, Benoit, Rajendra
>
> On Tue, Aug 9, 2011 at 2:26 PM, Luciano Coelho <coelho@xxxxxx> wrote:
>> I'm again getting a very similar oops with 3.1-rc1 on my pandaboard:
>>
>> [    2.054351] usbcore: registered new interface driver cdc_ncm
>> [    2.061431] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
>> [    2.068664] Unhandled fault: imprecise external abort (0x1406) at 0x00000000
>> [    2.076110] Internal error: : 1406 [#1] SMP
>> [    2.080505] Modules linked in:
>> [    2.083709] CPU: 0    Not tainted  (3.1.0-rc1-wl+ #283)
>> [    2.089233] PC is at omap_usbhs_enable+0x148/0x590
>> [    2.094299] LR is at trace_hardirqs_off+0x14/0x18
> ...
>> [    2.310150] [<c02a8640>] (omap_usbhs_enable+0x148/0x590) from [<c0321d60>] (ehci_hcd_omap_probe+0x1b4/0x568)
>> [    2.320526] [<c0321d60>] (ehci_hcd_omap_probe+0x1b4/0x568) from [<c0298cfc>] (platform_drv_probe+0x24/0x28)
>> [    2.330780] [<c0298cfc>] (platform_drv_probe+0x24/0x28) from [<c0297650>] (driver_probe_device+0x158/0x27c)
>> [    2.341033] [<c0297650>] (driver_probe_device+0x158/0x27c) from [<c02977ec>] (__driver_attach+0x78/0x9c)
>> [    2.351043] [<c02977ec>] (__driver_attach+0x78/0x9c) from [<c0296c00>] (bus_for_each_dev+0x5c/0x8c)
>> [    2.360565] [<c0296c00>] (bus_for_each_dev+0x5c/0x8c) from [<c0297334>] (driver_attach+0x28/0x30)
>> [    2.369903] [<c0297334>] (driver_attach+0x28/0x30) from [<c02963ec>] (bus_add_driver+0xd8/0x260)
>> [    2.379180] [<c02963ec>] (bus_add_driver+0xd8/0x260) from [<c0297f00>] (driver_register+0xb8/0x144)
>> [    2.388702] [<c0297f00>] (driver_register+0xb8/0x144) from [<c02991e0>] (platform_driver_register+0x54/0x68)
>> [    2.399047] [<c02991e0>] (platform_driver_register+0x54/0x68) from [<c069904c>] (ehci_hcd_init+0xa8/0xfc)
>> [    2.409149] [<c069904c>] (ehci_hcd_init+0xa8/0xfc) from [<c0008854>] (do_one_initcall+0xa8/0x17c)
>> [    2.418487] [<c0008854>] (do_one_initcall+0xa8/0x17c) from [<c06792d4>] (kernel_init+0x88/0x134)
>> [    2.427764] [<c06792d4>] (kernel_init+0x88/0x134) from [<c0014ba0>] (kernel_thread_exit+0x0/0x8)
>
> I get this too.
>
>> Any clues?
>
> Reverting 665d001338b494d6d62810aa99b4c0fa1a0884b9 "OMAP2+: hwmod:
> Follow the recommended PRCM module enable sequence" fixes this for me.
>
> More specifically, this hunk alone seems to do the trick:
>
> diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44x
> index 2af0e3f..12d22a8 100644
> --- a/arch/arm/mach-omap2/clock44xx_data.c
> +++ b/arch/arm/mach-omap2/clock44xx_data.c
> @@ -3379,7 +3379,6 @@ int __init omap4xxx_clk_init(void)
>        }
>
>        clk_init(&omap2_clk_functions);
> -       omap2_clk_disable_clkdm_control();
>
>        for (c = omap44xx_clks; c < omap44xx_clks + ARRAY_SIZE(omap44xx_clks);
>                                                                          c++)
>
> I'm not suggesting this is anyway near a real fix, but hopefully it
> will help pin-point the problem (clock44xx_data.c changes ?).




Even I am seeing same and bit similar crash  in omap4 sdp

[   36.922027] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   36.931243] CUSTOM SRESP error with SOURCE:L4CFG
[   36.936096] Modules linked in: ehci_hcd(+)
[   36.940399] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   36.950256] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   36.960327] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   36.970550] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   36.981445] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   36.991760] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   37.001617] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   37.011627] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   37.020843] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   37.029327] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   37.038085] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   37.046661] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   37.055328] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   37.064178] Exception stack(0xc0609f60 to 0xc0609fa8)
[   37.069488] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   37.078063] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   37.086639] 9fa0: 20000013 ffffffff
[   37.090301] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   37.098999] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   37.107574] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   37.116333] ---[ end trace 52da08271889a1a6 ]---
[   37.121215] ------------[ cut here ]------------
[   37.126068] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   37.135284] CUSTOM SRESP error with SOURCE:L4CFG
[   37.140136] Modules linked in: ehci_hcd(+)
[   37.144439] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   37.154296] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   37.164337] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   37.174530] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   37.185394] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   37.195709] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   37.205535] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   37.215576] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   37.224822] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   37.233306] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   37.242034] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   37.250610] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   37.259246] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   37.268096] Exception stack(0xc0609f60 to 0xc0609fa8)
[   37.273406] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   37.281982] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   37.290557] 9fa0: 20000013 ffffffff
[   37.294219] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   37.302856] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   37.311431] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   37.320220] ---[ end trace 52da08271889a1a7 ]---
[   37.325042] ------------[ cut here ]------------
[   37.329895] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   37.339080] CUSTOM SRESP error with SOURCE:L4CFG
[   37.343933] Modules linked in: ehci_hcd(+)
[   37.348236] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   37.358093] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   37.368194] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   37.378417] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   37.389312] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   37.399627] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   37.409484] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   37.419555] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   37.428771] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   37.437286] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   37.446075] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   37.454650] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   37.463348] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   37.472229] Exception stack(0xc0609f60 to 0xc0609fa8)
[   37.477539] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   37.486145] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   37.494720] 9fa0: 20000013 ffffffff
[   37.498413] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   37.507080] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   37.515686] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   37.524444] ---[ end trace 52da08271889a1a8 ]---
[   37.529296] ------------[ cut here ]------------
[   37.534149] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   37.543365] CUSTOM SRESP error with SOURCE:L4CFG
[   37.548217] Modules linked in: ehci_hcd(+)
[   37.552551] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   37.562408] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   37.572479] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   37.582733] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   37.593597] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   37.603942] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   37.613800] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   37.623870] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   37.633117] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   37.641632] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   37.650390] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   37.658996] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   37.667694] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   37.676544] Exception stack(0xc0609f60 to 0xc0609fa8)
[   37.681854] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   37.690460] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   37.699035] 9fa0: 20000013 ffffffff
[   37.702697] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   37.711395] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   37.720001] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   37.728759] ---[ end trace 52da08271889a1a9 ]---
[   37.733642] ------------[ cut here ]------------
[   37.738464] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   37.747711] CUSTOM SRESP error with SOURCE:L4CFG
[   37.752563] Modules linked in: ehci_hcd(+)
[   37.756866] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   37.766723] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   37.776794] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   37.787048] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   37.797912] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   37.808258] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   37.818145] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   37.828216] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   37.837463] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   37.845977] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   37.854766] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   37.863342] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   37.872039] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   37.880920] Exception stack(0xc0609f60 to 0xc0609fa8)
[   37.886230] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   37.894836] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   37.903411] 9fa0: 20000013 ffffffff
[   37.907104] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   37.915802] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   37.924377] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   37.933166] ---[ end trace 52da08271889a1aa ]---
[   37.938049] ------------[ cut here ]------------
[   37.942901] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   37.952117] CUSTOM SRESP error with SOURCE:L4CFG
[   37.956970] Modules linked in: ehci_hcd(+)
[   37.961303] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   37.971191] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   37.981262] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   37.991516] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   38.002410] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   38.012725] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   38.022613] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   38.032684] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   38.041931] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   38.050445] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   38.059234] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   38.067810] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   38.076507] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   38.085388] Exception stack(0xc0609f60 to 0xc0609fa8)
[   38.090698] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   38.099304] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   38.107910] 9fa0: 20000013 ffffffff
[   38.111572] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   38.120239] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   38.128845] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   38.137603] ---[ end trace 52da08271889a1ab ]---
[   38.142486] ------------[ cut here ]------------
[   38.147338] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   38.156555] CUSTOM SRESP error with SOURCE:L4CFG
[   38.161376] Modules linked in: ehci_hcd(+)
[   38.165710] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   38.175598] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   38.185638] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   38.195861] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   38.206756] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   38.217102] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   38.226989] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   38.237030] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   38.246276] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   38.254760] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   38.263519] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   38.272125] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   38.280822] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   38.289672] Exception stack(0xc0609f60 to 0xc0609fa8)
[   38.294952] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   38.303558] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   38.312133] 9fa0: 20000013 ffffffff
[   38.315795] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   38.324462] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   38.333038] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   38.341796] ---[ end trace 52da08271889a1ac ]---
[   38.346679] ------------[ cut here ]------------
[   38.351531] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   38.360748] CUSTOM SRESP error with SOURCE:L4CFG
[   38.365570] Modules linked in: ehci_hcd(+)
[   38.369873] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   38.379760] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   38.389831] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   38.400085] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   38.410949] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   38.421295] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   38.431182] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   38.441223] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   38.450439] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   38.458953] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   38.467742] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   38.476348] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   38.485046] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   38.493896] Exception stack(0xc0609f60 to 0xc0609fa8)
[   38.499206] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   38.507751] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   38.516326] 9fa0: 20000013 ffffffff
[   38.519989] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   38.528686] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   38.537261] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   38.546051] ---[ end trace 52da08271889a1ad ]---
[   38.550903] ------------[ cut here ]------------
[   38.555755] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   38.565002] CUSTOM SRESP error with SOURCE:L4CFG
[   38.569854] Modules linked in: ehci_hcd(+)
[   38.574157] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   38.584045] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   38.594116] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   38.604370] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   38.615234] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   38.625579] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   38.635467] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   38.645538] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   38.654785] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   38.663269] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   38.672058] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   38.680664] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   38.689331] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   38.698211] Exception stack(0xc0609f60 to 0xc0609fa8)
[   38.703521] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   38.712127] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   38.720733] 9fa0: 20000013 ffffffff
[   38.724426] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   38.733123] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   38.741729] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   38.750488] ---[ end trace 52da08271889a1ae ]---
[   38.755340] ------------[ cut here ]------------
[   38.760192] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   38.769439] CUSTOM SRESP error with SOURCE:L4CFG
[   38.774261] Modules linked in: ehci_hcd(+)
[   38.778594] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   38.788482] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   38.798553] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   38.808776] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   38.819671] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   38.830017] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   38.839904] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   38.849945] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   38.859161] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   38.867675] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   38.876434] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   38.885009] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   38.893707] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   38.902526] Exception stack(0xc0609f60 to 0xc0609fa8)
[   38.907836] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   38.916412] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   38.924987] 9fa0: 20000013 ffffffff
[   38.928649] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   38.937347] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   38.945953] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   38.954711] ---[ end trace 52da08271889a1af ]---
[   38.959564] ------------[ cut here ]------------
[   38.964416] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   38.973632] CUSTOM SRESP error with SOURCE:L4CFG
[   38.978454] Modules linked in: ehci_hcd(+)
[   38.982757] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   38.992645] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   39.002716] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   39.012969] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   39.023864] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   39.034179] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   39.044067] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   39.054107] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   39.063323] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   39.071838] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   39.080627] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   39.089233] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   39.097930] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   39.106781] Exception stack(0xc0609f60 to 0xc0609fa8)
[   39.112121] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   39.120727] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   39.129333] 9fa0: 20000013 ffffffff
[   39.132995] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   39.141662] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)
[   39.150268] [<c001544c>] (cpu_idle+0xc0/0x104) from [<c05bb82c>]
(start_kernel+0x270/0x 300)
[   39.159057] ---[ end trace 52da08271889a1b0 ]---
[   39.163909] ------------[ cut here ]------------
[   39.168792] WARNING: at arch/arm/mach-omap2/omap_l3_noc.c:106
l3_interrupt_handler+0x14 4/0x170()
[   39.178009] CUSTOM SRESP error with SOURCE:L4CFG
[   39.182861] Modules linked in: ehci_hcd(+)
[   39.187194] [<c001ae84>] (unwind_backtrace+0x0/0xf8) from
[<c004ee10>] (warn_slowpath_c ommon+0x4c/0x64)
[   39.197052] [<c004ee10>] (warn_slowpath_common+0x4c/0x64) from
[<c004eebc>] (warn_slowp ath_fmt+0x30/0x40)
[   39.207122] [<c004eebc>] (warn_slowpath_fmt+0x30/0x40) from
[<c0030318>] (l3_interrupt_ handler+0x144/0x170)
[   39.217346] [<c0030318>] (l3_interrupt_handler+0x144/0x170) from
[<c0097aac>] (handle_i rq_event_percpu+0x74/0x208)
[   39.228240] [<c0097aac>] (handle_irq_event_percpu+0x74/0x208) from
[<c0097c7c>] (handle _irq_event+0x3c/0x5c)
[   39.238586] [<c0097c7c>] (handle_irq_event+0x3c/0x5c) from
[<c009a288>] (handle_fasteoi _irq+0x98/0x110)
[   39.248474] [<c009a288>] (handle_fasteoi_irq+0x98/0x110) from
[<c0097624>] (generic_han dle_irq+0x38/0x48)
[   39.258544] [<c0097624>] (generic_handle_irq+0x38/0x48) from
[<c0014c88>] (handle_IRQ+0 x4c/0xac)
[   39.267791] [<c0014c88>] (handle_IRQ+0x4c/0xac) from [<c041b89c>]
(__irq_svc+0x3c/0x100 )
[   39.276306] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0055d70>]
(__do_softirq+0x64/0x 21c)
[   39.285095] [<c0055d70>] (__do_softirq+0x64/0x21c) from
[<c0056124>] (irq_exit+0x90/0xa c)
[   39.293701] [<c0056124>] (irq_exit+0x90/0xac) from [<c0008474>]
(do_local_timer+0x58/0x 74)
[   39.302398] [<c0008474>] (do_local_timer+0x58/0x74) from
[<c041b89c>] (__irq_svc+0x3c/0 x100)
[   39.311248] Exception stack(0xc0609f60 to 0xc0609fa8)
[   39.316589] 9f60: 00000001 00000001 c06209c8 00000000 c0608000
c068be24 c061d96c 000000 00
[   39.325195] 9f80: c0622184 411fc092 c0622338 00000000 c0605770
c0609fa8 c008569c c0014e 00
[   39.333801] 9fa0: 20000013 ffffffff
[   39.337463] [<c041b89c>] (__irq_svc+0x3c/0x100) from [<c0014e00>]
(default_idle+0x30/0x 38)
[   39.346160] [<c0014e00>] (default_idle+0x30/0x38) from [<c001544c>]
(cpu_idle+0xc0/0x10 4)


it's crashing l3 cache; its occurrence is very random and rare in omap4 sdp.
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