https://bugzilla.kernel.org/show_bug.cgi?id=215475 --- Comment #4 from slark_xiao@xxxxxxx --- Hi all, According to Qualcomm analysis, there is no issue on IPA side. They suspect that USB is slow to drain is the Root Cause. We tried to enable QMAP to speed up from host side. Ping test is okay, but failed in iperf test under simulator network. Do you have any good idea for further debugging? Thanks. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.