PgBouncer cl_waiting: Diagnose Before Enlarging the Pool
Correlate per-database/user waits with PostgreSQL query and lock time before increasing connection limits.
Infrastructure
OpenWrt Keep Settings: What Sysupgrade Preserves
Keep settings restores selected configuration, not every installed package. Check backup contents, image compatibility, and when clean settings are needed.
OpenWrt tools/elfutils Build Failure: Isolate the First Error
Preserve revision, host prerequisites, and diffconfig, then rebuild only tools/elfutils with verbose logging to isolate the first actionable compiler error.
Diagnosing netvsc Kernel Panics in WSL2 Mirrored Mode
Separate a real netvsc kernel panic from a WSL2 connectivity failure, preserve the call trace, and compare mirrored and NAT modes safely.