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Mon, 31 Mar 2025 11:16:24 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: bugzilla set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: virtualization@FreeBSD.org Subject: [Bug 285681] [Hyper-V] i386 panic during storvsc_xferbuf_prepare() Date: Mon, 31 Mar 2025 11:16:24 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 15.0-CURRENT X-Bugzilla-Keywords: crash X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: commit-hook@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D285681 --- Comment #29 from commit-hook@FreeBSD.org --- A commit in branch main references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3Da319ba694538a38429115aaaf1d4b3946= ea3a8b5 commit a319ba694538a38429115aaaf1d4b3946ea3a8b5 Author: Mark Johnston AuthorDate: 2025-03-31 10:45:14 +0000 Commit: Mark Johnston CommitDate: 2025-03-31 11:14:42 +0000 hyperv/storvsc: Fix busdma constraints - The BUS_DMA_KEEP_PG_OFFSET flag is needed, since storvsc_xferbuf_prepare() assumes that only the first segment may have a non-zero offset, and that all following segments are page-sized and -aligned. - storvsc_xferbuf_prepare() handles 64-bit bus addresses, so avoid unneeded bouncing on i386. PR: 285681 Reported by: dim Tested by: dim, whu MFC after: 2 weeks sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --=20 You are receiving this mail because: You are the assignee for the bug.=