Hi,
I’m writing a http poller that send concurrent HTTP requests to
retrieve the monitoring data, put the results into a queue then
consume them by several workers that send HTTP requests to our log
aggregators.
At the beginning everything works well, about 9 hours later the
program crashes and leaves the following messages:
The weird thing I don’t understand is that there is no panic or system
level messages.
Exception 0xc0000005 0x0 0xffffffffffffffff 0x7ffbea7bc8eb
PC=0x7ffbea7bc8ebx
syscall.Syscall6(0x7ffbea7b8a80, 0x4, 0x4, 0x1138ad0, 0xc04223d3d0,
0xc04223d3e0, 0x0, 0x0, 0xc0422f1a00, 0x300000002, ...)
C:/Go/src/runtime/syscall_windows.go:174 +0x6b
syscall.CertVerifyCertificateChainPolicy(0x4, 0x1138ad0, 0xc04223d3d0,
0xc04223d3e0, 0x0, 0xc04249d3d8)
C:/Go/src/syscall/zsyscall_windows.go:1208 +0xc1
crypto/x509.checkChainSSLServerPolicy(0xc04238d200, 0x1138ad0,
0xc04223d808, 0x38e8f10, 0xc04249d548)
C:/Go/src/crypto/x509/root_windows.go:117 +0xfd
crypto/x509.(*Certificate).systemVerify(0xc04238d200, 0xc04249d808,
0x0, 0x0, 0x0, 0x0, 0x0)
C:/Go/src/crypto/x509/root_windows.go:212 +0x484
crypto/x509.(*Certificate).Verify(0xc04238d200, 0xc042448940, 0x13,
0xc042251500, 0x0, 0xed0c3b03e, 0x25245214, 0xbb0b80, 0x0, 0x0, ...)
C:/Go/src/crypto/x509/verify.go:279 +0x86c
crypto/tls.(*clientHandshakeState).doFullHandshake(0xc04223de50,
0xc042203380, 0x51)
C:/Go/src/crypto/tls/handshake_client.go:300 +0x4c0
crypto/tls.(*Conn).clientHandshake(0xc0422ef500, 0x969ae0, 0xc0422ef620)
C:/Go/src/crypto/tls/handshake_client.go:228 +0xf97
crypto/tls.(*Conn).Handshake(0xc0422ef500, 0x0, 0x0)
C:/Go/src/crypto/tls/conn.go:1307 +0x1aa
net/http.(*Transport).dialConn.func3(0x0, 0xc0422ef500, 0xc04200e9c0,
0xc0424201e0)
C:/Go/src/net/http/transport.go:1082 +0x49
created by net/http.(*Transport).dialConn
C:/Go/src/net/http/transport.go:1087 +0xff3
...
This is the main program, blocked by channel selecting, waiting for
signals. (SIGINT, SIGTERM and SIGQUIT)
goroutine 1 [chan receive, 732 minutes]:
cheyi/myprog/lib/poller.main(0xc042079b00, 0xc042146940, 0x0, 0x4)
D:/Golang/src/cheyi/myprog/lib/poller/entry.go:52 +0x17c
cheyi/myprog/vendor/github.com/spf13/cobra.(*Command).execute(0xc042079b00,
0xc042146900, 0x4, 0x4, 0xc042079b00, 0xc042146900)
D:/Golang/src/cheyi/myprog/vendor/github.com/spf13/cobra/command.go:648
+0x23b
cheyi/myprog/vendor/github.com/spf13/cobra.(*Command).ExecuteC(0xba9fc0,
0xc04201c0b8, 0x0, 0x1)
D:/Golang/src/cheyi/myprog/vendor/github.com/spf13/cobra/command.go:734
+0x340
cheyi/myprog/vendor/github.com/spf13/cobra.(*Command).Execute(0xba9fc0,
0x850bc3, 0x946c4b)
D:/Golang/src/cheyi/myprog/vendor/github.com/spf13/cobra/command.go:693
+0x32
cheyi/myprog/cmd.Execute()
D:/Golang/src/cheyi/myprog/cmd/entry.go:28 +0x38
main.main()
D:/Golang/src/cheyi/myprog/main.go:11 +0x27
goroutine 5 [syscall, 732 minutes]:
os/signal.signal_recv(0x0)
C:/Go/src/runtime/sigqueue.go:116 +0x10b
os/signal.loop()
C:/Go/src/os/signal/signal_unix.go:22 +0x29
created by os/signal.init.1
C:/Go/src/os/signal/signal_unix.go:28 +0x48
...
After the backtrace of poller and output worker goroutines are the
backtrace of http related goroutines
goroutine 58972 [IO wait]:
net.runtime_pollWait(0x32b0780, 0x72, 0xb74500)
C:/Go/src/runtime/netpoll.go:164 +0x60
net.(*pollDesc).wait(0xc042408a60, 0x72, 0xb74500, 0x0)
C:/Go/src/net/fd_poll_runtime.go:75 +0x3f
net.(*ioSrv).ExecIO(0xc0421ea008, 0xc042408920, 0x949b9c, 0x7,
0x9692d0, 0x1, 0x0, 0xc04295d820)
C:/Go/src/net/fd_windows.go:196 +0xfe
net.(*netFD).Read(0xc0424088c0, 0xc04249e000, 0x2000, 0x2000, 0x0, 0x0, 0x0)
C:/Go/src/net/fd_windows.go:452 +0x13d
net.(*conn).Read(0xc042232158, 0xc04249e000, 0x2000, 0x2000, 0x0, 0x0, 0x0)
C:/Go/src/net/net.go:181 +0x77
crypto/tls.(*block).readFromUntil(0xc04219c6c0, 0x32b0fc0,
0xc042232158, 0x5, 0xc042232158, 0x4200da00)
C:/Go/src/crypto/tls/conn.go:488 +0x9f
crypto/tls.(*Conn).readRecord(0xc0423a4000, 0xc04295db14, 0x52dd0e,
0xc0424088c0)
C:/Go/src/crypto/tls/conn.go:590 +0xcb
crypto/tls.(*clientHandshakeState).readFinished(0xc04295de50,
0xc0423a40f5, 0xc, 0xc, 0x0, 0x0)
C:/Go/src/crypto/tls/handshake_client.go:584 +0x5a
crypto/tls.(*Conn).clientHandshake(0xc0423a4000, 0x969ae0, 0xc0423a4120)
C:/Go/src/crypto/tls/handshake_client.go:244 +0x10a6
crypto/tls.(*Conn).Handshake(0xc0423a4000, 0x0, 0x0)
C:/Go/src/crypto/tls/conn.go:1307 +0x1aa
net/http.(*Transport).dialConn.func3(0x0, 0xc0423a4000, 0xc042146e80,
0xc04218ee40)
C:/Go/src/net/http/transport.go:1082 +0x49
created by net/http.(*Transport).dialConn
C:/Go/src/net/http/transport.go:1087 +0xff3
goroutine 58945 [select]:
net/http.setRequestCancel.func3(0x0, 0xc0421b87b0, 0xc04200e8c0,
0xc0421b689c, 0xc0421b59e0)
C:/Go/src/net/http/client.go:320 +0x183
created by net/http.setRequestCancel
C:/Go/src/net/http/client.go:330 +0x28e
...
The crash messages end with register addresses/values:
rax 0x200f607ca72f723b
rbx 0x0
rcx 0x0
rdi 0x40
rsi 0x0
rbp 0x2e5fd59
rsp 0x2e5fcc0
r8 0x2e5fd40
r9 0x2e5fd18
r10 0x1
r11 0x246
r12 0x0
r13 0x0
r14 0x1
r15 0xc04249d408
rip 0x7ffbea7bc8eb
rflags 0x10256
cs 0x33
fs 0x53
gs 0x2b
The go version is 1.8.3 windows/amd64 and the program runs on a modern
Win10 laptop with i7 CPU and 16GB memory.
Thanks for your help!
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
