runtime error: invalid memory address or nil pointer dereference

[46797536]

2023/05/16 02:43:18 http: panic serving 172.64.182.254:59840: runtime error: invalid memory address or nil pointer dereference
goroutine 58308 [running]:
net/http.(*conn).serve.func1(0xc000186e60)
/usr/local/go/src/net/http/server.go:1795 +0x139
panic(0x13594c0, 0x208c260)
/usr/local/go/src/runtime/panic.go:679 +0x1b2
bufio.(*Writer).Flush(0xc00290c3c0, 0x16a6d20, 0xc00290c3c0)
/usr/local/go/src/bufio/bufio.go:593 +0x5c
net/http.(*Request).write(0xc001908e00, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
/usr/local/go/src/net/http/request.go:691 +0x7bb
net/http.(*Request).Write(...)
/usr/local/go/src/net/http/request.go:524
k8s.io/apimachinery/pkg/util/proxy.dial(0xc001908e00, 0x16a84c0, 0xc00027a280, 0xc0003af160, 0xc0003aefe0, 0xc000fd7a60, 0x14efb96)
/go/pkg/mod/k8s.io/[email protected]/pkg/util/proxy/upgradeaware.go:428 +0x165
k8s.io/apimachinery/pkg/util/proxy.(*UpgradeAwareHandler).DialForUpgrade(0xc00335a5a0, 0xc001908e00, 0x890575e8, 0xffffffffffffffff, 0x0, 0x3e0000c002b22fa8)
/go/pkg/mod/k8s.io/[email protected]/pkg/util/proxy/upgradeaware.go:399 +0x11b
k8s.io/apimachinery/pkg/util/proxy.(*UpgradeAwareHandler).tryUpgrade(0xc00335a5a0, 0x16d7f80, 0xc002af42a0, 0xc001908c00, 0x5f9f00)
/go/pkg/mod/k8s.io/[email protected]/pkg/util/proxy/upgradeaware.go:280 +0x15ea
k8s.io/apimachinery/pkg/util/proxy.(*UpgradeAwareHandler).ServeHTTP(0xc00335a5a0, 0x16d7f80, 0xc002af42a0, 0xc001908c00)
/go/pkg/mod/k8s.io/[email protected]/pkg/util/proxy/upgradeaware.go:189 +0x6a
kubesphere.io/tower/pkg/proxy.(*Server).ServeHTTP(0xc0006da120, 0x16d7f80, 0xc002af42a0, 0xc001908c00)
/workspace/pkg/proxy/proxy_server.go:186 +0x355
net/http.serverHandler.ServeHTTP(0xc0000288c0, 0x16d7f80, 0xc002af42a0, 0xc001908c00)
/usr/local/go/src/net/http/server.go:2831 +0xa4
net/http.(*conn).serve(0xc000186e60, 0x16dbc40, 0xc001c9af40)
/usr/local/go/src/net/http/server.go:1919 +0x875
created by net/http.(*Server).Serve
/usr/local/go/src/net/http/server.go:2957 +0x384
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x50 pc=0x63bc15]

goroutine 82318 [running]:
crypto/tls.(*Conn).write(0xc001523180, 0xc0009ba300, 0xf3, 0x100, 0xc000460300, 0xee, 0x180)
/usr/local/go/src/crypto/tls/conn.go:915 +0x135
crypto/tls.(*Conn).writeRecordLocked(0xc001523180, 0x16, 0xc000460300, 0xee, 0x180, 0x0, 0x0, 0xc000460300)
/usr/local/go/src/crypto/tls/conn.go:964 +0x29f
crypto/tls.(*Conn).writeRecord(0xc001523180, 0xc000460316, 0xc000460300, 0xee, 0x180, 0x0, 0x0, 0x0)
/usr/local/go/src/crypto/tls/conn.go:986 +0xe2
crypto/tls.(*Conn).clientHandshake(0xc001523180, 0x0, 0x0)
/usr/local/go/src/crypto/tls/handshake_client.go:167 +0x179
crypto/tls.(*Conn).Handshake(0xc001523180, 0x0, 0x0)
/usr/local/go/src/crypto/tls/conn.go:1362 +0x12b
net/http.(*persistConn).addTLS.func2(0x0, 0xc001523180, 0x0, 0xc0005dcf00)
/usr/local/go/src/net/http/transport.go:1414 +0x42
created by net/http.(*persistConn).addTLS
/usr/local/go/src/net/http/transport.go:1410 +0x1aa

[iawia002]

Which version of the tower are you using? this should be fixed in #46, try v0.2.1

[HuangGuSheng]

same problem，tower:v0.2.0