Date: Wed, 20 May 2026 18:35:15 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 295453] loading virtio_p9fs driver, then mounting a directory then calling kldunload causes kernel panic Message-ID: <bug-295453-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295453 Bug ID: 295453 Summary: loading virtio_p9fs driver, then mounting a directory then calling kldunload causes kernel panic Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: njain15@protonmail.com Created attachment 270961 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=270961&action=edit Suggested fix using: FreeBSD 16.0-CURRENT (src c028080749c09e68c555155df0e9f681ba63c6ae) To reproduce: # kldload virtio_p9fs # mount -t p9fs sharename /mnt_dir # kldunload virtio_p9fs On 14.4-rel and 15.0-rel this causes a panic immediately. In current, the P9 device is detached but a panic occurs on reboot. Suggested fix is to return EBUSY to prevent unloading until umount is called (or shutdown). -- You are receiving this mail because: You are the assignee for the bug.home | help
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