Re: [PATCH] gdth: bugfix for the at-exit problems

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On Thu, Feb 14 2008 at 18:10 +0200, James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, 2008-02-14 at 13:58 +0200, Boaz Harrosh wrote:
>> This is a bugfix for the 2.6.24.x stable releases.
>>
>> gdth_exit would first remove all cards then stop the timer
>> and would not sync with the timer function. This caused a crash
>> in gdth_timer() when module was unloaded.
>> So del_timer_sync the timer before we delete the cards.
>>
>> also the reboot notifier function would crash. So unify
>> the exit and halt functions with a gdth_shutdown() that's
>> called by both.
> 
> The patch looks fine now, thanks.  Can we actually get a tester just to
> make sure there's nothing I missed.
> 
> James
> 
> 

Yes, and the tester reported, a breakage. We are on it.
Apparently, you cannot do a full deallocation of resources
at reboot notifier, nor would you want to I guess.

But you can do the flush. The exit call is never called
on a reboot and the card access is valid to the end.

Please comment?

So I pretty much reverted that patch, but did leave some
cleanups.

Also we found the other problems reported with user-mode tools
and cat /proc/sys/gdth/0

so 2 patches on the way above reverted. Give us a few ours to test
every thing.

Thanks
Boaz

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