It was observed that during fault injection testing the vgpu.entry remains uninitialized when taking the error path, which results in warnings [1]:
<6> [491.828427] list_del corruption, ffff88812cd2d0c8->next is NULL <4> [491.828430] WARNING: lib/list_debug.c:52 at __list_del_entry_valid_or_report+0x6f/0x120, CPU#2: i915_module_loa/2921 Add initialization step to intel_vgpu_detect(). Signed-off-by: Krzysztof Karas <[email protected]> --- Example of failure from intel-gfx-ci: https://intel-gfx-ci.01.org/tree/drm-tip/IGT_8711/shard-dg2-5/igt@[email protected]#dmesg-warnings385 drivers/gpu/drm/i915/i915_vgpu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/i915_vgpu.c b/drivers/gpu/drm/i915/i915_vgpu.c index d29a06ea51a5..362282b20f7b 100644 --- a/drivers/gpu/drm/i915/i915_vgpu.c +++ b/drivers/gpu/drm/i915/i915_vgpu.c @@ -67,6 +67,7 @@ void intel_vgpu_detect(struct drm_i915_private *dev_priv) u64 magic; u16 version_major; void __iomem *shared_area; + INIT_LIST_HEAD(&dev_priv->vgpu.entry); BUILD_BUG_ON(sizeof(struct vgt_if) != VGT_PVINFO_SIZE); -- 2.43.0 -- Best Regards, Krzysztof
