> On 28-Jul-2021, at 11:05 PM, Nathan Chancellor <nat...@kernel.org> wrote:
>
> On Wed, Jul 28, 2021 at 01:31:06PM +0530, Sachin Sant wrote:
>> linux-next fails to boot on Power server (POWER8/POWER9). Following traces
>> are seen during boot
>>
>> [ 0.010799] software IO TLB: tearing down default memory pool
>> [ 0.010805] ------------[ cut here ]------------
>> [ 0.010808] kernel BUG at arch/powerpc/kernel/interrupt.c:98!
>> [ 0.010812] Oops: Exception in kernel mode, sig: 5 [#1]
…….
>
> I noticed this with OpenSUSE's ppc64le config [1] and my bisect landed on
> commit ad6c00283163 ("swiotlb: Free tbl memory in swiotlb_exit()"). That
Indeed. Thanks Nathan.
Bisect points to this commit. Reverting the commit allows the kernel to boot.
Thanks
-Sachin
> series just keeps on giving... Adding some people from that thread to
> this one. Original thread:
> https://lore.kernel.org/r/1905cd70-7656-42ae-99e2-a31fc3812...@linux.vnet.ibm.com/
>
> [1]:
> https://github.com/openSUSE/kernel-source/raw/master/config/ppc64le/default
>
> Cheers,
> Nathan
