From: Zorro Lang <zlang@redhat.com>
To: linux-mm@kvack.org
Cc: linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org
Subject: Potential regression on kernel 5.19-rc0: kernel BUG at mm/page_table_check.c:51!
Date: Mon, 30 May 2022 16:06:16 +0800 [thread overview]
Message-ID: <20220530080616.6h77ppymilyvjqus@zlang-mailbox> (raw)
Hi mm folks:
I reported a regression bug on latest upstream linux:
https://bugzilla.kernel.org/show_bug.cgi?id=216047
It's about xfs/ext4 + DAX, panic at mm/page_table_check.c:51!
static struct page_table_check *get_page_table_check(struct page_ext *page_ext)
{
==> BUG_ON(!page_ext);
return (void *)(page_ext) + page_table_check_ops.offset;
}
It's 100% reproducible for me, by running fstests generic/623:
https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/tree/tests/generic/623
on xfs or ext4 with DAX enabled.
It doesn't look like a xfs or ext4 issue, so send to linux-mm to get more
reviewing. More details please refer to above bug link. I changed its Pruduct
to mm, but the Assignee isn't changed by default.
Thanks,
Zorro
next reply other threads:[~2022-05-30 8:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-30 8:06 Zorro Lang [this message]
2022-05-30 18:39 ` Potential regression on kernel 5.19-rc0: kernel BUG at mm/page_table_check.c:51! Zorro Lang
2022-05-30 22:29 ` Dave Chinner
2022-05-31 0:43 ` Matthew Wilcox
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=20220530080616.6h77ppymilyvjqus@zlang-mailbox \
--to=zlang@redhat.com \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-xfs@vger.kernel.org \
/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).