From: Michal Hocko <mhocko@kernel.org>
To: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Christoph Lameter <cl@linux.com>, Roman Gushchin <guro@fb.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Shakeel Butt <shakeelb@google.com>, linux-mm <linux-mm@kvack.org>,
Vlastimil Babka <vbabka@suse.cz>,
Kernel Team <kernel-team@fb.com>,
open list <linux-kernel@vger.kernel.org>,
Yafang Shao <laoar.shao@gmail.com>,
lkft-triage@lists.linaro.org,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: PANIC: mm: memcg/slab: percpu_ref_put_many - Unable to handle kernel paging request at virtual address ffff80096d78f000
Date: Wed, 1 Jul 2020 10:19:51 +0200 [thread overview]
Message-ID: <20200701081951.GL2369@dhcp22.suse.cz> (raw)
In-Reply-To: <CA+G9fYtrgF_EZHi0vi+HyWiXT5LGggDhVXtNspc=OzzFhL=xRQ@mail.gmail.com>
On Wed 01-07-20 13:24:54, Naresh Kamboju wrote:
> While running LTP mm test suite on arm64 Juno device the kernel panic
> noticed on linux-next 20200630 tag.
Can you try to bisect? The new memcg slab allocator series sounds like a
potential candidate. One of the patches has changed the memcg reference
counting which is showing up on the stack. This might be a side effect
of something else of course but bisection would tell us more.
Thanks
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2020-07-01 8:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-01 7:54 Naresh Kamboju
2020-07-01 8:19 ` Michal Hocko [this message]
2020-07-02 15:58 ` Naresh Kamboju
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200701081951.GL2369@dhcp22.suse.cz \
--to=mhocko@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=cl@linux.com \
--cc=guro@fb.com \
--cc=hannes@cmpxchg.org \
--cc=kernel-team@fb.com \
--cc=laoar.shao@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lkft-triage@lists.linaro.org \
--cc=naresh.kamboju@linaro.org \
--cc=shakeelb@google.com \
--cc=vbabka@suse.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox