linux-block.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Jan Kara <jack@suse.cz>
To: "yukuai (C)" <yukuai3@huawei.com>
Cc: "Jan Kara" <jack@suse.cz>, "Michal Koutný" <mkoutny@suse.com>,
	"Paolo Valente" <paolo.valente@linaro.org>,
	linux-block@vger.kernel.org, fvogt@suse.de,
	cgroups@vger.kernel.org
Subject: Re: Use after free with BFQ and cgroups
Date: Wed, 22 Dec 2021 16:21:03 +0100	[thread overview]
Message-ID: <20211222152103.GF685@quack2.suse.cz> (raw)
In-Reply-To: <f03b2b1c-808a-c657-327d-03165b988e7d@huawei.com>

On Thu 09-12-21 10:23:33, yukuai (C) wrote:
> We confirmed this by our reproducer through a simple patch:
> stop merging bfq_queues if their parents are different.

Can you please share your reproducer? I have prepared some patches which
I'd like to verify before posting... Thanks!

								Honza
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

  parent reply	other threads:[~2021-12-22 15:21 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-25 17:28 Use after free with BFQ and cgroups Jan Kara
2021-11-26 14:47 ` Michal Koutný
2021-11-29 17:11   ` Jan Kara
2021-12-09  2:23     ` yukuai (C)
2021-12-09 15:33       ` Paolo Valente
2021-12-13 17:33       ` Jan Kara
2021-12-14  1:24         ` yukuai (C)
2021-12-20 18:38           ` Jan Kara
2021-12-22 15:21       ` Jan Kara [this message]
2021-12-23  1:02         ` yukuai (C)
2021-12-23 17:13           ` Jan Kara
2021-11-29 17:12   ` Tejun Heo
2021-11-30 11:50     ` Jan Kara
2021-11-30 16:22       ` Tejun Heo

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=20211222152103.GF685@quack2.suse.cz \
    --to=jack@suse.cz \
    --cc=cgroups@vger.kernel.org \
    --cc=fvogt@suse.de \
    --cc=linux-block@vger.kernel.org \
    --cc=mkoutny@suse.com \
    --cc=paolo.valente@linaro.org \
    --cc=yukuai3@huawei.com \
    /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;
as well as URLs for NNTP newsgroup(s).