linux-fsdevel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Miklos Szeredi <miklos@szeredi.hu>
To: Eric Biggers <ebiggers@kernel.org>
Cc: linux-fsdevel@vger.kernel.org, linux-aio <linux-aio@kvack.org>,
	Benjamin LaHaise <bcrl@kvack.org>,
	syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
	stable <stable@vger.kernel.org>, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH] fuse: disable irqs for fuse_iqueue::waitq.lock
Date: Tue, 3 Sep 2019 09:31:29 +0200	[thread overview]
Message-ID: <CAJfpegvHgcZGFi-Ydyo2j89zQxqAtZ1Lh0+vC6vWeU-aEFZkYQ@mail.gmail.com> (raw)
In-Reply-To: <20190822233529.4176-1-ebiggers@kernel.org>

On Fri, Aug 23, 2019 at 1:35 AM Eric Biggers <ebiggers@kernel.org> wrote:
>
> From: Eric Biggers <ebiggers@google.com>
>
> When IOCB_CMD_POLL is used on the FUSE device, aio_poll() disables IRQs
> and takes kioctx::ctx_lock, then fuse_iqueue::waitq.lock.

Not in -linus.

Which tree was this reproduced with?

Thanks,
Miklos

  parent reply	other threads:[~2019-09-03  7:31 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-18 16:18 possible deadlock in io_submit_one (2) syzbot
     [not found] ` <20190822233529.4176-1-ebiggers@kernel.org>
2019-09-03  7:31   ` Miklos Szeredi [this message]
2019-09-03 13:39     ` [PATCH] fuse: disable irqs for fuse_iqueue::waitq.lock Eric Biggers
2019-09-04 14:29       ` Miklos Szeredi
2019-09-06  4:43         ` Eric Biggers
2019-09-06  6:58           ` Miklos Szeredi
2019-09-09  3:15             ` [PATCH v2] fuse: fix deadlock with aio poll and fuse_iqueue::waitq.lock Eric Biggers

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=CAJfpegvHgcZGFi-Ydyo2j89zQxqAtZ1Lh0+vC6vWeU-aEFZkYQ@mail.gmail.com \
    --to=miklos@szeredi.hu \
    --cc=bcrl@kvack.org \
    --cc=ebiggers@kernel.org \
    --cc=hch@lst.de \
    --cc=linux-aio@kvack.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=stable@vger.kernel.org \
    --cc=syzkaller-bugs@googlegroups.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).