Date: Sun, 29 Mar 2026 10:17:40 -0600 From: Alan Somers <asomers@freebsd.org> To: Andrew Turner <andrew@freebsd.org> Cc: src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org, Sarah Walker <sarah.walker2@arm.com> Subject: Re: git: c8c37141a661 - main - virtio_blk: Use bus_dma for command/ack buffer allocations Message-ID: <CAOtMX2g1_Y_wWun9CiVekkSNZYzA06dxg9FDAZB5MH6%2BPAGm=w@mail.gmail.com> In-Reply-To: <69a71c76.409df.5a93939b@gitrepo.freebsd.org>
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On Tue, Mar 3, 2026 at 10:38 AM Andrew Turner <andrew@freebsd.org> wrote: > > The branch main has been updated by andrew: > > URL: https://cgit.FreeBSD.org/src/commit/?id=c8c37141a661cc9a6a51e43599d1afc8a3f0ef46 > > commit c8c37141a661cc9a6a51e43599d1afc8a3f0ef46 > Author: Sarah Walker <sarah.walker2@arm.com> > AuthorDate: 2026-03-03 16:27:38 +0000 > Commit: Andrew Turner <andrew@FreeBSD.org> > CommitDate: 2026-03-03 16:29:15 +0000 > > virtio_blk: Use bus_dma for command/ack buffer allocations > > While the majority of virtio platforms will be fully coherent, some may > require cache maintenance or other specific device memory handling (eg for > secure partitioning). Using bus_dma allows for these usecases. > > The virtio buffers are marked as coherent; this should ensure that sync > calls are no-ops in the common cases. > > Reviewed by: andrew, br > Sponsored by: Arm Ltd > Differential Revision: https://reviews.freebsd.org/D54960 After this commit, my VM can no longer dump core. When I try, it panics again. Could you please investigate? And let's move discussion to Bugzilla: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294120 .home | help
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