Date: Thu, 02 Nov 2023 09:17:11 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 274810] [regression] FreeBSD 14.0-RC3 crash during early boot on Vultr with custom ISO Message-ID: <bug-274810-227-nwX1Nm4i1x@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-274810-227@https.bugs.freebsd.org/bugzilla/> References: <bug-274810-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274810 --- Comment #18 from commit-hook@FreeBSD.org --- A commit in branch releng/14.0 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3D52dbe7401fba923bc18124190029e65b4= 91a756e commit 52dbe7401fba923bc18124190029e65b491a756e Author: Zhenlei Huang <zlei@FreeBSD.org> AuthorDate: 2023-11-02 09:07:11 +0000 Commit: Zhenlei Huang <zlei@FreeBSD.org> CommitDate: 2023-11-02 09:13:18 +0000 Hyper-V: vmbus: Add NULL check for vmbus_res QEMU emulates Hyper-V [1] but lacks the emulation for vmbus_res, thus no coherence information is available. Add NULL check for it and fallback to no coherence. This will prevent FreeBSD guests from panic on QEMU with the Hyper-V enlightenment hv-synic enabled. For real Hyper-V, both gen1 and gen2 have vmbus_res then they are not affected by this change. 1. https://www.qemu.org/docs/master/system/i386/hyperv.html PR: 274810 Reviewed by: mhorne, emaste, delphij, whu Approved by: re (gjb) Diagnosed by: mhorne Fixes: e7a9817b8d32 Hyper-V: vmbus: implementat bus_get_dma_ta= g in vmbus Insta-MFC approved by: re (delphij) for 14.0-RC4 Differential Revision: https://reviews.freebsd.org/D42414 (cherry picked from commit 63bf943d4af17799cef21e2bb78dd28003ce1ce5) (cherry picked from commit 1969d82fcf62f80c2047a53b42f501680b140b0d) sys/dev/hyperv/vmbus/vmbus.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) --=20 You are receiving this mail because: You are the assignee for the bug.=
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