Oops in MMC

Oops in MMC

[Premi, Sanjeev]

Hi,

I was trying to mount the filesystem from MMC card on OMAP3EVM.
Came across this oops.

However, when I boot via ramdisk/NFS and mount /dev/mmcblk0p2; there is no oops.

Anything missing in the configuration?

Here is my snapshot menuconfig:
   --- MMC/SD/SDIO card support
   *** MMC/SD/SDIO Card Drivers ***
    <*>   MMC block device driver
    [*]     Use bounce buffer for simple hosts
    <*>   TI OMAP High Speed Multimedia Card Interface support

Also:
# git-show --pretty=oneline
5019ed843f3208482c64043e4052e89b3d5462a0 sync isp1301_omap with mainlne

Best regards,
Sanjeev

Mounting NFS filesystems:  [  OK  ]
Mounting other filesystems:  [  OK  ]
Starting system logger: <1>Unhandled fault: external abort on non-linefetch (0x1808) at 0xd809c104
Unhandled fault: external abort on non-linefetch (0x1808) at 0xd809c104
Internal error: : 1808 [#1]
Internal error: : 1808 [#1]
Modules linked in:Modules linked in:

CPU: 0    Not tainted  (2.6.27-omap1-00099-g13446fc-dirty #111)
CPU: 0    Not tainted  (2.6.27-omap1-00099-g13446fc-dirty #111)
PC is at omap_mmc_request+0x64/0x264
PC is at omap_mmc_request+0x64/0x264
LR is at mmc_wait_for_req+0xf0/0x108
LR is at mmc_wait_for_req+0xf0/0x108
pc : [<c01fc2b0>]    lr : [<c01f5a2c>]    psr: a0000013
sp : c7a97dc8  ip : c7a97e18  fp : c7a97e14
pc : [<c01fc2b0>]    lr : [<c01f5a2c>]    psr: a0000013
sp : c7a97dc8  ip : c7a97e18  fp : c7a97e14
r10: 00000000  r9 : 00000000  r8 : c7ac3d30
r10: 00000000  r9 : 00000000  r8 : c7ac3d30
r7 : c7a97e58  r6 : c7ac2400  r5 : c7ac2400  r4 : c7ac25c0
r7 : c7a97e58  r6 : c7ac2400  r5 : c7ac2400  r4 : c7ac25c0
r3 : 00080200  r2 : 00000008  r1 : d809c000  r0 : c7ac2400
r3 : 00080200  r2 : 00000008  r1 : d809c000  r0 : c7ac2400
Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 00c5387f  Table: 87b20018  DAC: 00000017
Control: 00c5387f  Table: 87b20018  DAC: 00000017
Process mmcqd (pid: 289, stack limit = 0xc7a962e0)
Process mmcqd (pid: 289, stack limit = 0xc7a962e0)
Stack: (0xc7a97dc8 to 0xc7a98000)
Stack: (0xc7a97dc8 to 0xc7a98000)
7dc0: 7dc0:                                     c7ac3d30 c7ac3d30 00000400 00000400 c7a97e04 c7a97e04 c7a97de0 c7a97de0 c0158798 c0158798 c01586c8 c01586c8

7de0: 7de0: 00000000 00000000 c78b5800 c78b5800 00000000 00000000 c7a97e58 c7a97e58 00000000 00000000 c7ac2400 c7ac2400 c7aa3200 c7aa3200 c7ac3d30 c7ac3d30

7e00: 7e00: 00000000 00000000 00000000 00000000 c7a97e44 c7a97e44 c7a97e18 c7a97e18 c01f5a2c c01f5a2c c01fc258 c01fc258 c7a97e44 c7a97e44 00000000 00000000

7e20: 7e20: c7a97e20 c7a97e20 c7a97e20 c7a97e20 c7a97ec4 c7a97ec4 c7a97ec4 c7a97ec4 c7ac3d30 c7ac3d30 c7a9a424 c7a9a424 c7a97fb4 c7a97fb4 c7a97e48 c7a97e48

7e40: 7e40: c01fab74 c01fab74 c01f5948 c01f5948 165c5fcb 165c5fcb c7a9a420 c7a9a420 00000001 00000001 00000011 00000011 c7a97e6c c7a97e6c c7a97ec4 c7a97ec4

7e60: 7e60: c7a97e98 c7a97e98 c7a97e1c c7a97e1c c01f5ac0 c01f5ac0 00000012 00000012 00692b0b 00692b0b 00000000 00000000 00000000 00000000 00000000 00000000

7e80: 7e80: 00000000 00000000 000000b5 000000b5 00000000 00000000 00000000 00000000 c7a97ec4 c7a97ec4 c7a97e58 c7a97e58 0000000c 0000000c 00000000 00000000

7ea0: 7ea0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000049d 0000049d 00000000 00000000 00000000 00000000 00000000 00000000

7ec0: 7ec0: c7a97e58 c7a97e58 05f5e100 05f5e100 00000000 00000000 00000200 00000200 00000008 00000008 00000000 00000000 00000200 00000200 00000000 00000000

7ee0: 7ee0: c7a97e98 c7a97e98 c7a97e58 c7a97e58 00000001 00000001 c7aa1a20 c7aa1a20 c7ac3d30 c7ac3d30 c7ac3d74 c7ac3d74 c78713a0 c78713a0 00000000 00000000

7f00: 7f00: c7a97f24 c7a97f24 c7a97f10 c7a97f10 c0157728 c0157728 c016a414 c016a414 c7ac3d30 c7ac3d30 c78713bc c78713bc c7a97f44 c7a97f44 c7a97f28 c7a97f28

7f20: 7f20: c7a97f44 c7a97f44 c7a97f30 c7a97f30 c01577dc c01577dc c0156380 c0156380 c78713a0 c78713a0 c7ac3d30 c7ac3d30 c7a97f6c c7a97f6c c7a97f48 c7a97f48

7f40: 7f40: c015ff48 c015ff48 c01577c0 c01577c0 c7a96000 c7a96000 c7ac5398 c7ac5398 c78713a0 c78713a0 00000000 00000000 c7ac3d30 c7ac3d30 00000001 00000001

7f60: 7f60: c7a97f94 c7a97f94 c7a97f70 c7a97f70 c0160740 c0160740 c015fe60 c015fe60 c7a9a424 c7a9a424 c78ba918 c78ba918 c7a96000 c7a96000 c7a9a42c c7a9a42c

7f80: 7f80: c7ac3d30 c7ac3d30 c78ba918 c78ba918 c7a97fb4 c7a97fb4 c7a9a424 c7a9a424 c7ac3d30 c7ac3d30 c7a96000 c7a96000 c7a9a42c c7a9a42c c78ba918 c78ba918

7fa0: 7fa0: 00000000 00000000 00000000 00000000 c7a97fdc c7a97fdc c7a97fb8 c7a97fb8 c01fb5c4 c01fb5c4 c01fa9ac c01fa9ac c7a9a424 c7a9a424 c01fb510 c01fb510

7fc0: 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 c7a97ff4 c7a97ff4 c7a97fe0 c7a97fe0 c00649a8 c00649a8 c01fb51c c01fb51c

7fe0: 7fe0: 00000000 00000000 00000000 00000000 00000000 00000000 c7a97ff8 c7a97ff8 c0054770 c0054770 c0064960 c0064960 0cfbce10 0cfbce10 0077eea1 0077eea1

Backtrace: Backtrace:

[<c01fc24c>] [<c01fc24c>] (omap_mmc_request+0x0/0x264) (omap_mmc_request+0x0/0x264) from [<c01f5a2c>] from [<c01f5a2c>] (mmc_wait_for_req+0xf0/0x108)
(mmc_wait_for_req+0xf0/0x108)
[<c01f593c>] [<c01f593c>] (mmc_wait_for_req+0x0/0x108) (mmc_wait_for_req+0x0/0x108) from [<c01fab74>] from [<c01fab74>] (mmc_blk_issue_rq+0x1d4/0x560)
(mmc_blk_issue_rq+0x1d4/0x560)
 r6:c7a9a424 r6:c7a9a424 r5:c7ac3d30 r5:c7ac3d30 r4:c7a97ec4 r4:c7a97ec4

[<c01fa9a0>] [<c01fa9a0>] (mmc_blk_issue_rq+0x0/0x560) (mmc_blk_issue_rq+0x0/0x560) from [<c01fb5c4>] from [<c01fb5c4>] (mmc_queue_thread+0xb4/0xdc)
(mmc_queue_thread+0xb4/0xdc)
[<c01fb510>] [<c01fb510>] (mmc_queue_thread+0x0/0xdc) (mmc_queue_thread+0x0/0xdc) from [<c00649a8>] from [<c00649a8>] (kthread+0x54/0x80)
(kthread+0x54/0x80)
 r9:00000000 r9:00000000 r8:00000000 r8:00000000 r7:00000000 r7:00000000 r6:00000000 r6:00000000 r5:c01fb510 r5:c01fb510
r4:c7a9a424
r4:c7a9a424

[<c0064954>] [<c0064954>] (kthread+0x0/0x80) (kthread+0x0/0x80) from [<c0054770>] from [<c0054770>] (do_exit+0x0/0x6b8)
(do_exit+0x0/0x6b8)
 r5:00000000 r5:00000000 r4:00000000 r4:00000000

Code: Code: 0a000076 0a000076 e593200c e593200c e5933008 e5933008 e1833802 e1833802 (e5813104) (e5813104)

<4>---[ end trace b5f4aa4005b441fc ]---
---[ end trace b5f4aa4005b441fc ]---

Re: Oops in MMC

[Högander Jouni]

"ext Premi, Sanjeev" <premi@ti.com> writes:

> Hi,
>
> I was trying to mount the filesystem from MMC card on OMAP3EVM.
> Came across this oops.
>
> However, when I boot via ramdisk/NFS and mount /dev/mmcblk0p2; there is no oops.
>
> Anything missing in the configuration?
>
> Here is my snapshot menuconfig:
>    --- MMC/SD/SDIO card support
>    *** MMC/SD/SDIO Card Drivers ***
>     <*>   MMC block device driver
>     [*]     Use bounce buffer for simple hosts
>     <*>   TI OMAP High Speed Multimedia Card Interface support
>
> Also:
> # git-show --pretty=oneline
> 5019ed843f3208482c64043e4052e89b3d5462a0 sync isp1301_omap with mainlne
>
> Best regards,
> Sanjeev
>
> Mounting NFS filesystems:  [  OK  ]
> Mounting other filesystems:  [  OK  ]
> Starting system logger: <1>Unhandled fault: external abort on non-linefetch (0x1808) at 0xd809c104
> Unhandled fault: external abort on non-linefetch (0x1808) at
> 0xd809c104

This indicates that the driver is trying to access OMAP HSMMC module
registers while the module has it's clocks disabled. So probably there
is bug in HSMMC driver clock handling or in clockfw.

-- 
Jouni Högander

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RE: Oops in MMC

[Premi, Sanjeev]

> -----Original Message-----
> From: Högander Jouni [mailto:jouni.hogander@nokia.com] 
> Sent: Tuesday, December 02, 2008 5:27 PM
> To: Premi, Sanjeev
> Cc: linux-omap@vger.kernel.org
> Subject: Re: Oops in MMC
> 
> "ext Premi, Sanjeev" <premi@ti.com> writes:
> 
> > Hi,
> >
> > I was trying to mount the filesystem from MMC card on OMAP3EVM.
> > Came across this oops.
> >
> > However, when I boot via ramdisk/NFS and mount 
> /dev/mmcblk0p2; there is no oops.
> >
> > Anything missing in the configuration?
> >
> > Here is my snapshot menuconfig:
> >    --- MMC/SD/SDIO card support
> >    *** MMC/SD/SDIO Card Drivers ***
> >     <*>   MMC block device driver
> >     [*]     Use bounce buffer for simple hosts
> >     <*>   TI OMAP High Speed Multimedia Card Interface support
> >
> > Also:
> > # git-show --pretty=oneline
> > 5019ed843f3208482c64043e4052e89b3d5462a0 sync isp1301_omap with 
> > mainlne
> >
> > Best regards,
> > Sanjeev
> >
> > Mounting NFS filesystems:  [  OK  ]
> > Mounting other filesystems:  [  OK  ]
> > Starting system logger: <1>Unhandled fault: external abort on 
> > non-linefetch (0x1808) at 0xd809c104 Unhandled fault: 
> external abort 
> > on non-linefetch (0x1808) at
> > 0xd809c104
> 
> This indicates that the driver is trying to access OMAP HSMMC 
> module registers while the module has it's clocks disabled. 
> So probably there is bug in HSMMC driver clock handling or in clockfw.

Appears to be so; but I was not sure why it hasn't been reported so far. I see many posts of Angstorm using MMC.

> 
> --
> Jouni Högander
> 
> 
> --
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Re: Oops in MMC

[Adrian Hunter]

Premi, Sanjeev wrote:
> I was trying to mount the filesystem from MMC card on OMAP3EVM.
> Came across this oops.

[snip]

> Starting system logger: <1>Unhandled fault: external abort on non-linefetch (0x1808) at 0xd809c104
> Unhandled fault: external abort on non-linefetch (0x1808) at 0xd809c104

[snip]

> PC is at omap_mmc_request+0x64/0x264

[snip]

Do you have the latest HSMMC patches?

Tony has refused to apply them but they are in the list archive and here:

git://git.infradead.org/users/ahunter/omap_hsmmc.git 

in branch 

omap_hsmmc

RE: Oops in MMC

[Premi, Sanjeev]

> -----Original Message-----
> From: Adrian Hunter [mailto:ext-adrian.hunter@nokia.com] 
> Sent: Tuesday, December 02, 2008 5:41 PM
> To: Premi, Sanjeev
> Cc: linux-omap@vger.kernel.org
> Subject: Re: Oops in MMC
> 
> Premi, Sanjeev wrote:
> > I was trying to mount the filesystem from MMC card on OMAP3EVM.
> > Came across this oops.
> 
> [snip]
> 
> > Starting system logger: <1>Unhandled fault: external abort on 
> > non-linefetch (0x1808) at 0xd809c104 Unhandled fault: 
> external abort 
> > on non-linefetch (0x1808) at 0xd809c104
> 
> [snip]
> 
> > PC is at omap_mmc_request+0x64/0x264
> 
> [snip]
> 
> Do you have the latest HSMMC patches?
> 
> Tony has refused to apply them but they are in the list 
> archive and here:
> 
> git://git.infradead.org/users/ahunter/omap_hsmmc.git 
> 
> in branch 
> 
> omap_hsmmc
> 

Thanks. Will try them. I am able to view branch over http (not git://) but unable to view them raw.
Will take bit long :(

> 

Re: Oops in MMC

[Adrian Hunter]

[-- Attachment #1: Type: text/plain, Size: 1011 bytes --]

Premi, Sanjeev wrote:
>> -----Original Message-----
>> From: Adrian Hunter [mailto:ext-adrian.hunter@nokia.com] 
>> Sent: Tuesday, December 02, 2008 5:41 PM
>> To: Premi, Sanjeev
>> Cc: linux-omap@vger.kernel.org
>> Subject: Re: Oops in MMC
>>
>> Premi, Sanjeev wrote:
>>> I was trying to mount the filesystem from MMC card on OMAP3EVM.
>>> Came across this oops.
>> [snip]
>>
>>> Starting system logger: <1>Unhandled fault: external abort on 
>>> non-linefetch (0x1808) at 0xd809c104 Unhandled fault: 
>> external abort 
>>> on non-linefetch (0x1808) at 0xd809c104
>> [snip]
>>
>>> PC is at omap_mmc_request+0x64/0x264
>> [snip]
>>
>> Do you have the latest HSMMC patches?
>>
>> Tony has refused to apply them but they are in the list 
>> archive and here:
>>
>> git://git.infradead.org/users/ahunter/omap_hsmmc.git 
>>
>> in branch 
>>
>> omap_hsmmc
>>
> 
> Thanks. Will try them. I am able to view branch over http (not git://) but unable to view them raw.
> Will take bit long :(
> 

Here are the patches



[-- Attachment #2: pats.tar.gz --]
[-- Type: application/x-gzip, Size: 7665 bytes --]

RE: Oops in MMC

[Premi, Sanjeev]

 

> -----Original Message-----
> From: Adrian Hunter [mailto:ext-adrian.hunter@nokia.com] 
> Sent: Tuesday, December 02, 2008 6:15 PM
> To: Premi, Sanjeev
> Cc: linux-omap@vger.kernel.org
> Subject: Re: Oops in MMC
> 
> Premi, Sanjeev wrote:
> >> -----Original Message-----
> >> From: Adrian Hunter [mailto:ext-adrian.hunter@nokia.com]
> >> Sent: Tuesday, December 02, 2008 5:41 PM
> >> To: Premi, Sanjeev
> >> Cc: linux-omap@vger.kernel.org
> >> Subject: Re: Oops in MMC
> >>
> >> Premi, Sanjeev wrote:
> >>> I was trying to mount the filesystem from MMC card on OMAP3EVM.
> >>> Came across this oops.
> >> [snip]
> >>
> >>> Starting system logger: <1>Unhandled fault: external abort on 
> >>> non-linefetch (0x1808) at 0xd809c104 Unhandled fault:
> >> external abort
> >>> on non-linefetch (0x1808) at 0xd809c104
> >> [snip]
> >>
> >>> PC is at omap_mmc_request+0x64/0x264
> >> [snip]
> >>
> >> Do you have the latest HSMMC patches?
> >>
> >> Tony has refused to apply them but they are in the list 
> archive and 
> >> here:
> >>
> >> git://git.infradead.org/users/ahunter/omap_hsmmc.git
> >>
> >> in branch
> >>
> >> omap_hsmmc
> >>
> > 
> > Thanks. Will try them. I am able to view branch over http 
> (not git://) but unable to view them raw.
> > Will take bit long :(
> > 
> 
> Here are the patches
> 
Thanks Adrian. They worked!
> 
>