wgengine/tstun: fix alignment of 64-bit atomic field

We had a test for it, but no 32-bit builder apparently. :( Fixes #529
6 years ago · 724ad13fe1
parent 4db60a8436
commit 724ad13fe1
1 changed files with 2 additions and 1 deletions
--- a/wgengine/tstun/tun.go
+++ b/wgengine/tstun/tun.go
@ -58,7 +58,8 @@ type TUN struct {
 	// tdev is the underlying TUN device.
 	tdev tun.Device

-	lastActivityAtomic int64 // unix seconds of last send or receive
+	_                  [4]byte // force 64-bit alignment of following field on 32-bit
+	lastActivityAtomic int64   // unix seconds of last send or receive

 	// buffer stores the oldest unconsumed packet from tdev.
 	// It is made a static buffer in order to avoid allocations.