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Date: Fri, 19 Feb 2016 15:15:50 +0100 (CET)
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>,
 Andrea Arcangeli <aarcange@redhat.com>,
 Christian Borntraeger <borntraeger@de.ibm.com>,
 "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
 linux-mm@kvack.org, linux-kernel@vger.kernel.org,
 "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
 Andrew Morton <akpm@linux-foundation.org>,
 Linus Torvalds <torvalds@linux-foundation.org>,
 Michael Ellerman <mpe@ellerman.id.au>,
 Benjamin Herrenschmidt <benh@kernel.crashing.org>,
 Paul Mackerras <paulus@samba.org>, linuxppc-dev@lists.ozlabs.org,
 Catalin Marinas <catalin.marinas@arm.com>,
 Will Deacon <will.deacon@arm.com>, linux-arm-kernel@lists.infradead.org,
 Martin Schwidefsky <schwidefsky@de.ibm.com>,
 Heiko Carstens <heiko.carstens@de.ibm.com>, linux-s390@vger.kernel.org
Subject: Re: [BUG] random kernel crashes after THP rework on s390 (maybe also
 on PowerPC and ARM)
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On Thu, 18 Feb 2016, Kirill A. Shutemov wrote:
> I worth minimizing kernel config on which you can see the bug. Things like
> CONFIG_DEBUG_PAGEALLOC used to interfere with THP before.

I disabled all debugging options (using
arch/s390/configs/performance_defconfig) - we still chrashed.

Sebastian