From: Stefan Metzmacher <metze@samba.org>
To: David Howells <dhowells@redhat.com>
Cc: "linux-cifs@vger.kernel.org" <linux-cifs@vger.kernel.org>,
netfs@lists.linux.dev,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Steve French <stfrench@microsoft.com>
Subject: Re: [PATCH] cifs: Collapse smbd_recv_*() into smbd_recv() and just use copy_to_iter()
Date: Wed, 25 Jun 2025 13:51:14 +0200 [thread overview]
Message-ID: <e867b6c0-c468-4fc8-a30f-215b5dd18bdb@samba.org> (raw)
In-Reply-To: <1341840.1750850709@warthog.procyon.org.uk>
Am 25.06.25 um 13:25 schrieb David Howells:
> Stefan Metzmacher <metze@samba.org> wrote:
>
>>> [ 922.218230] [ T6642] kernel BUG at mm/usercopy.c:102!
>
> Ah, I don't have that config option enabled. With it, I can reproduce that.
Ah, allocate_caches_and_workqueue() needs to use kmem_cache_create_usercopy/KMEM_CACHE_USERCOPY...
I was already using that in my old wip smbdirect code.
metze
next prev parent reply other threads:[~2025-06-25 11:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-23 13:04 [PATCH] cifs: Collapse smbd_recv_*() into smbd_recv() and just use copy_to_iter() David Howells
2025-06-24 12:25 ` Stefan Metzmacher
2025-06-24 14:22 ` David Howells
2025-06-24 16:05 ` Stefan Metzmacher
2025-06-25 8:07 ` Stefan Metzmacher
2025-06-25 10:10 ` Stefan Metzmacher
2025-06-25 11:25 ` David Howells
2025-06-25 11:51 ` Stefan Metzmacher [this message]
2025-06-25 12:47 ` David Howells
2025-06-25 14:18 ` Stefan Metzmacher
2025-06-25 16:00 ` David Howells
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=e867b6c0-c468-4fc8-a30f-215b5dd18bdb@samba.org \
--to=metze@samba.org \
--cc=dhowells@redhat.com \
--cc=linux-cifs@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=netfs@lists.linux.dev \
--cc=stfrench@microsoft.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