From: Sachin Sant <sachinp@linux.vnet.ibm.com>
To: Nathan Chancellor <nathan@kernel.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
iommu@lists.linux-foundation.org, linux-next@vger.kernel.org,
Claire Chang <tientzu@chromium.org>,
linuxppc-dev@lists.ozlabs.org, Christoph Hellwig <hch@lst.de>
Subject: Re: [powerpc][next-20210727] Boot failure - kernel BUG at arch/powerpc/kernel/interrupt.c:98!
Date: Thu, 29 Jul 2021 09:51:36 +0530 [thread overview]
Message-ID: <63F21E55-B11E-4B30-B436-C063C405D9C5@linux.vnet.ibm.com> (raw)
In-Reply-To: <YQGVZnMe9hFieF8D@Ryzen-9-3900X.localdomain>
> On 28-Jul-2021, at 11:05 PM, Nathan Chancellor <nathan@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-A31FC3812EAC@linux.vnet.ibm.com/
>
> [1]: https://github.com/openSUSE/kernel-source/raw/master/config/ppc64le/default
>
> Cheers,
> Nathan
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next prev parent reply other threads:[~2021-07-29 9:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1905CD70-7656-42AE-99E2-A31FC3812EAC@linux.vnet.ibm.com>
2021-07-28 17:35 ` [powerpc][next-20210727] Boot failure - kernel BUG at arch/powerpc/kernel/interrupt.c:98! Nathan Chancellor
2021-07-29 4:08 ` Nicholas Piggin
2021-07-29 4:21 ` Sachin Sant [this message]
2021-07-29 16:13 ` Will Deacon
2021-07-29 16:35 ` Konrad Rzeszutek Wilk
2021-07-29 19:05 ` Nathan Chancellor
2021-07-30 5:17 ` Sachin Sant
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