ipn/ipnlocal: fix deadlock in ipn bus watcherjonathan/deadlock-fix

fixes tailscale/corp#40401

From an internal stack trace.  We witnessed a slow bus error and
a complete lock up of the ipn bus watcher.

Stack showed a b.mu->t.mu and t.mu->b.mu lock ordering
issue when setting up the HealthTracker's initial state and its
timer simultaneously fires.

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>

0 files changed, 0 insertions, 0 deletions