On Tue, Feb 10, 2015 at 12:22:41PM +0400, Konstantin Khlebnikov wrote:
> I've found regression:
>
> [ 257.139907] ================================================
> [ 257.139909] [ BUG: lock held when returning to user space! ]
> [ 257.139912] 3.18.6-debug+ #161 Tainted: G U
> [ 257.139914] ------------------------------------------------
> [ 257.139916] python/22843 is leaving the kernel with locks still held!
> [ 257.139918] 1 lock held by python/22843:
> [ 257.139920] #0: (&mm->mmap_sem){++++++}, at: [<ffffffff8104e4c2>]
> __do_page_fault+0x162/0x570
>
> upstream commit 7fb08eca45270d0ae86e1ad9d39c40b7a55d0190 must be backported
> too.
Ah, nice, I missed that one. How did you test this?
thanks,
greg k-h
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