[Bug 295453] loading virtio_p9fs driver, then mounting a directory then calling kldunload causes kernel panic

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From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 02 Sep 2026 22:41:22 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295453

--- Comment #2 from commit-hook@FreeBSD.org ---
A commit in branch stable/15 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=8af9d5e04a21be6160a8d55f7d04526646ef56e2

commit 8af9d5e04a21be6160a8d55f7d04526646ef56e2
Author:     Nimish Jain <njain15@protonmail.com>
AuthorDate: 2026-08-18 14:41:38 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2026-09-02 17:40:28 +0000

    virtio_p9fs: Disallow detach if a session is in progress

    PR:             295453
    Reviewed by:    markj
    MFC after:      1 week
    Differential Revision:  https://reviews.freebsd.org/D57500

    (cherry picked from commit b39457bb1566912062b2df551b7b8d429b8ba0da)

 sys/dev/virtio/p9fs/virtio_p9fs.c | 4 ++++
 1 file changed, 4 insertions(+)

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