Most recent kernel where this bug did *NOT* occur: 2.6.21-rc7
Hardware Environment: i386, Pentium M, Sony laptop
Software Environment: n/a
Problem Description: n/a
Steps to reproduce: n/a
Patches against v2.6.21-rc7 will follow.
Created attachment 11238 [details]
[PATCH 1/2] [mmc] alternative TI FM MMC/SD driver for 2.6.21-rc7
The device is present in many notebooks. Notebooks depend heavily on
suspend/resume functionality. tifm_core/7xx1/sd family is an ambitous,
but uncompleted project. It used to crash on resuming, or hang up
on suspending. A less common failure used to be trigerred by a fast
card insert/removal sequence. Finally, tifm_sd module needs to be
This driver is kind of mutant. The bones are taken from sdhci and omap,
the meat - from tifm_*. It contains all features (and bugs except named
above) of tifm_* as it was in kernel 2.6.21-rc7.
I have been testing this version since linux-2.6.18 (daily reading photos
from cards, daily suspending/resuming) without a single glitch.
This patch only provides sources. Kernel configuration follows
in next message.
Created attachment 11239 [details]
[PATCH 2/2] [mmc] alternative TIFM driver config for 2.6.21-rc7
* [TIFM_CORE] Updated prompt "...interface" -> "..virtual bus",
updated help message to reflect implementation details.
* [TIFM_7XX1] Updated help message;
* [MMC_TIFM] New symbol to allow alternative.
* [MMC_TIFM_7XX1] New symbol for the driver.
This patch will preserve any existing kernel config concerning tifm
The agregate symbol [MMC_TIFM] describes [MMC_TIFM_7XX1], because
the latter can be hidden if [TIFM_7XX1] is selected.
[TIFM_7XX1] and [MMC_TIFM_7XX1] are mutually exclusive, but belong
to different dirs. For that reason, we cannot use obvious 'choice'
kernel config keyword.
[MMC_TIFM_SD] and [MMC_TIFM_7XX1] are not mutually exclusive. If there
is a virtual bus controller different that [TIFM_7XX1], those two
modules can serve different cards at the same time.
Uploaded version compiles cleanly and runs smoothly on my sony laptop. I
routinely keep the computer running for several weeks without reboots, but with
daily suspend/resume. My photo uses mmc/sd cards, so it is stupid to use
external card reader when you have a built-in one.
Created attachment 11240 [details]
Unit test script [USES SUDO!]
This is a "test suite" for those who like XP programming style, as I do.
Created attachment 11272 [details]
patch removes custom debug macro
Created attachment 11273 [details]
patch reduces delay on insert/removal
Created attachment 11308 [details]
updated Unit test script [USES SUDO!]
Reconfigured for [tifm_*].
All magic values replaced with variables.
Today's tar on http://download.berlios.de/tifmxx/tifm-0.8e.tar.bz2 seems to
be stable enough.
*** This bug has been marked as a duplicate of 8052 ***