linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: Jinjiang Tu <tujinjiang@huawei.com>
To: <jimsiak@cslab.ece.ntua.gr>
Cc: <linux-fsdevel@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<viro@zeniv.linux.org.uk>, <linux-mm@kvack.org>,
	<wangkefeng.wang@huawei.com>, <tujinjiang@huawei.com>
Subject: Re: Using userfaultfd with KVM's async page fault handling causes processes to hung waiting for mmap_lock to be released
Date: Fri, 7 Mar 2025 15:21:33 +0800	[thread overview]
Message-ID: <20250307072133.3522652-1-tujinjiang@huawei.com> (raw)
In-Reply-To: <79375b71-db2e-3e66-346b-254c90d915e2@cslab.ece.ntua.gr>

Hi,

I encountered the same issue too. In my scenario, GUP is called by mlockall()
syscall.

Is there a solution to fix it?

Thanks.



  parent reply	other threads:[~2025-03-07  7:30 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <79375b71-db2e-3e66-346b-254c90d915e2@cslab.ece.ntua.gr>
2023-07-19 21:16 ` Axel Rasmussen
2023-07-19 21:54   ` Axel Rasmussen
2023-07-20 10:35     ` Hillf Danton
2023-07-20 20:07       ` Peter Xu
2023-07-20 20:06     ` Peter Xu
2025-03-07  7:21 ` Jinjiang Tu [this message]
2025-03-07  8:07   ` Jinjiang Tu
2025-03-07 13:11     ` jimsiak
2025-03-07 22:41       ` Peter Xu
2025-03-10  6:40         ` Jinjiang Tu
2025-03-10 18:50           ` Peter Xu
2025-03-11  8:14             ` Jinjiang Tu
2025-03-12  9:18               ` Jinjiang Tu
2025-03-12 14:09                 ` Peter Xu

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=20250307072133.3522652-1-tujinjiang@huawei.com \
    --to=tujinjiang@huawei.com \
    --cc=jimsiak@cslab.ece.ntua.gr \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=viro@zeniv.linux.org.uk \
    --cc=wangkefeng.wang@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