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wgengine/magicsock: clarify a log message is a warning, not an error

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Updates #cleanup

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2023-06-22 08:09:27 -07:00 committed by Brad Fitzpatrick
parent 61886e031e
commit 8b80d63b42
1 changed files with 2 additions and 2 deletions
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4
wgengine/magicsock/magicsock_linux.go
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@ -303,11 +303,11 @@ func trySetSocketBuffer(pconn nettype.PacketConn, logf logger.Logf) {
rc.Control(func(fd uintptr) { rc.Control(func(fd uintptr) {
errRcv = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_RCVBUFFORCE, socketBufferSize) errRcv = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_RCVBUFFORCE, socketBufferSize)
if errRcv != nil { if errRcv != nil {
logf("magicsock: failed to force-set UDP read buffer size to %d: %v", socketBufferSize, errRcv) logf("magicsock: [warning] failed to force-set UDP read buffer size to %d: %v; using kernel default values (impacts throughput only)", socketBufferSize, errRcv)
} }
errSnd = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_SNDBUFFORCE, socketBufferSize) errSnd = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_SNDBUFFORCE, socketBufferSize)
if errSnd != nil { if errSnd != nil {
logf("magicsock: failed to force-set UDP write buffer size to %d: %v", socketBufferSize, errSnd) logf("magicsock: [warning] failed to force-set UDP write buffer size to %d: %v; using kernel default values (impacts throughput only)", socketBufferSize, errSnd)
} }
}) })
} }