[RESEND] [PATCH 3.0] OMAP: drop __initdata tags from static struct platform_device declarations
Tony Lindgren
tony at atomide.com
Fri Jul 1 03:12:27 EDT 2011
* Janusz Krzysztofik <jkrzyszt at tis.icnet.pl> [110616 18:15]:
> Pointers to statically declared platform device structures which are
> registered with platform_device_register() are then used during run time
> to access these structure members, for example from platform_uevent()
> and much more. Therefore, these structures should never be placed inside
> sections which are dropped after boot. Fix platform devices incorrectly
> tagged with __initdata which happen to exist inside OMAP sub-trees.
>
> This bug has exhibited itself on my ARM/OMAP1 based Amstrad Delta
> videophone after commit 6d3163ce86dd386b4f7bda80241d7fea2bc0bb1d, "mm:
> check if any page in a pageblock is reserved before marking it
> MIGRATE_RESERVE", resulting in reading from several
> /sys/device/platform/*/uevent files always ending up with segmentation
> faults.
Thanks applying into devel-fixes.
Tony
More information about the linux-arm-kernel
mailing list