Re: Patch "asm-generic/bitops/lock.h: Rewrite using atomic_fetch_" causes kernel crash

From: Will Deacon
Date: Fri Aug 31 2018 - 05:53:43 EST

On Fri, Aug 31, 2018 at 12:30:50AM +0000, Vineet Gupta wrote:
> On 08/30/2018 01:45 PM, Peter Zijlstra wrote:
> >>
> >> Indeed this is the mother of all issues, I tried and system is clearly hosed with
> >> and works after.
> >> What's amazing is the commit 4aef66c8ae9 which introduced it is from 2016 ;-)
> >> Back then we had a retry branch with backoff stuff which I'd reverted for new
> >> cores and the merge conflict somehow missed it.
> >>
> >> @PeterZ I'll create a patch with you as author ? do I need any formal sign offs,
> >> acks etc ?
> > Well, Will spotted it, give authorship to him, you have my ack per the
> > above.
> Oops, sorry for the mixup. I have him as author now and pushed to ARC for-curr
> (will trickle into linux-next eventually).

Okey doke: you can have my Signed-off-by for all the diffs I sent. Just
stick something like [vineet: wrote commit message] in there so I don't
read it in the future and confuse myself.