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SubjectRe: [GIT PATCH] driver core merge for 3.3
On Fri, Jan 6, 2012 at 12:11 PM, Greg KH <gregkh@suse.de> wrote:
>
> Big thing here, that caused all of the merge issues, is the removal of
> the sysdev code.  It has been long needed to be removed, Kay finally
> just did it, thankfully.  There are patches pending that take advantage
> of this, providing properly CPU hotplug driver loading support, that
> will have to wait until 3.4, as they didn't make the merge window in
> time.  Note, the sysdev code isn't removed from the tree just yet, to
> help catch any other tree that might not have noticed this in the
> linux-next merge process.  I'll send a follow-on patch after 3.3-rc1 is
> out that removes this code, after ensuring that no other in-tree code is
> using the sysdev structures.

Hmm. I think this is the cause of one of the suspend/resume problems I'm seeing:

Device 'machinecheck3' does not have a releae() function, it is
broken and must be fixed

that's the WARN_ON() in drivers/base/core.c (line 192), and it comes
from disable_nonboot_cpus() doing the whole device_unregister() thing.

Afaik, it's arch/x86/kernel/cpu/mcheck/mce.c.

Ho humm?

Linus
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