From: Alex Williamson <alex.williamson@redhat.com>
To: zhenyuw@linux.intel.com, zhi.a.wang@intel.com
Cc: intel-gvt-dev@lists.freedesktop.org,
intel-gfx@lists.freedesktop.org, <linux-kernel@vger.kernel.org>
Subject: Regression: gvt: vgpu 1: MI_LOAD_REGISTER_MEM handler error
Date: Mon, 12 Apr 2021 10:32:14 -0600 [thread overview]
Message-ID: <20210412103214.337d521a@omen> (raw)
Running a Windows guest on a i915-GVTg_V4_2 from an HD 5500 IGD on
v5.12-rc6 results in host logs:
gvt: vgpu 1: lrm access to register (20c0)
gvt: vgpu 1: MI_LOAD_REGISTER_MEM handler error
gvt: vgpu 1: cmd parser error
0x0
0x29
gvt: vgpu 1: scan wa ctx error
gvt: vgpu 1: failed to submit desc 0
gvt: vgpu 1: fail submit workload on ring rcs0
gvt: vgpu 1: fail to emulate MMIO write 00002230 len 4
The guest goes into a boot loop triggering this error before reaching
the desktop and rebooting. Guest using Intel driver 20.19.15.5171
dated 11/4/2020 (from driver file 15.40.5171).
This VM works well with the same guest and userspace software stack on
Fedora's kernel 5.11.11-200.fc33.x86_64. Thanks,
Alex
next reply other threads:[~2021-04-12 16:48 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 16:32 Alex Williamson [this message]
2021-04-13 1:23 ` Regression: gvt: vgpu 1: MI_LOAD_REGISTER_MEM handler error Alex Williamson
2021-04-13 1:43 ` Zhenyu Wang
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