https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272184
Bug ID: 272184
Summary: if_lagg_test reversals also triggered on amd64, kernel
1400092
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: misc
Assignee: [email protected]
Reporter: [email protected]
Created attachment 242966
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=242966&action=edit
Concatenated root-priv and user-priv kyua reports
Like in bug #244163, amd64 hardware also triggers lock-order reversals in
1400092. My build is a fresh build from git commit id 59833b089e78 ("arm64:
improve KTR_TRAP trace entries", 2023-06-24). This is likely a race condition,
and I've replicated the failure both on bare metal and VM. The full
concatenated log of a root- and user-privileged kyua run is attached, and the
relevant failure is printed below.
sys/net/if_lagg_test:witness -> failed: Lock-order reversals involving
if_lagg.c detected [0.078s]
The system's behavior doesn't seem too affected by this (as of two hours'
uptime in this build), but I figured it's better to report than stay quiet.
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