2.6.19-rc4 - tifm_7xx1 does not work after suspend-to-disk

2.6.19-rc4 - tifm_7xx1 does not work after suspend-to-disk

[Fabio Comolli]

Hi.
The subject says it all: after a suspend-to-disk / resume cycle the
FlashMedia driver does not work at all: no message is logged in the
syslog and the SD card is not detected.

Normally this is what is logged in the syslog:

Nov  2 22:53:15 tycho kernel: tifm_7xx1: sd card detected in socket 3
Nov  2 22:53:15 tycho kernel: mmcblk0: mmc0:a95c SD256 247040KiB
Nov  2 22:53:15 tycho kernel:  mmcblk0: p1
Nov  2 23:00:33 tycho kernel: tifm_7xx1: demand removing card from socket 3

Any ideas?

Regards,
Fabio

Re: 2.6.19-rc4 - tifm_7xx1 does not work after suspend-to-disk

[Pierre Ossman]

Fabio Comolli wrote:
> Hi.
> The subject says it all: after a suspend-to-disk / resume cycle the
> FlashMedia driver does not work at all: no message is logged in the
> syslog and the SD card is not detected.

Could you enable MMC_DEBUG and see if that gives you any output? Also,
you should use "dmesg" to check as syslog misses things.

Rgds
-- 
     -- Pierre Ossman

  Linux kernel, MMC maintainer        http://www.kernel.org
  PulseAudio, core developer          http://pulseaudio.org
  rdesktop, core developer          http://www.rdesktop.org

Re: 2.6.19-rc4 - tifm_7xx1 does not work after suspend-to-disk

[Alex Dubov]

I was looking into this stuff lately, and it's appears to be something complex. I couldn't get it
to crush on git-head, but I've got write corruptions every now and then. And suspend is totally
untested at the moment.

I'm currently trying to fix this.



 
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Re: 2.6.19-rc4 - tifm_7xx1 does not work after suspend-to-disk

[Fabio Comolli]

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OK, so my results were kind of expected ;-)

Anyway I'm sending my dmesg.log with mmc-debug enabled as per Pierre
demand. The missing event should have been at the end of the file. As
you can see, there's no evidence at all that tifm notices the card
insertion after resuming.

Regards,

Fabio



On 11/3/06, Alex Dubov <oakad@yahoo.com> wrote:
> I was looking into this stuff lately, and it's appears to be something complex. I couldn't get it
> to crush on git-head, but I've got write corruptions every now and then. And suspend is totally
> untested at the moment.
>
> I'm currently trying to fix this.
>
>
>
>
> ____________________________________________________________________________________
> We have the perfect Group for you. Check out the handy changes to Yahoo! Groups
> (http://groups.yahoo.com)
>
>

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