linux-ext4 - [Bug 201631] WARNING: CPU: 11 PID: 29593 at fs/ext4/inode.c:3927 .ext4_set_page

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Date:   Sat, 26 Jan 2019 16:03:30 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 201631] WARNING: CPU: 11 PID: 29593 at fs/ext4/inode.c:3927
 .ext4_set_page_dirty+0x70/0xb0

https://bugzilla.kernel.org/show_bug.cgi?id=201631

--- Comment #52 from erhard_f@...lbox.org ---
(In reply to Aneesh Kumar KV from comment #49)
> Can you try this change?
> 
> diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
> index 6a23b9ebd2a1..c42f91ba7067 100644
> --- a/arch/powerpc/mm/tlb-radix.c
> +++ b/arch/powerpc/mm/tlb-radix.c
> @@ -644,10 +644,12 @@ void radix__flush_tlb_page_psize(struct mm_struct *mm,
> unsigned long vmaddr,
>         preempt_disable();
>         smp_mb(); /* see radix__flush_tlb_mm */
>         if (!mm_is_thread_local(mm)) {
> +/*
>                 if (unlikely(mm_is_singlethreaded(mm))) {
>                         exit_flush_lazy_tlbs(mm);
>                         goto local;
>                 }
> +*/
>                 _tlbie_va(vmaddr, pid, psize, RIC_FLUSH_TLB);
>         } else {
>  local:

Should I apply this in addition to Jan's patch or standalone?

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