[squid-users] To many ERR_CANNOT_FORWARD

[Andre Bolinhas]

Hi

I'm using squid 5.2 but stating yesterday I'm getting too many errors 
ERR_CANNOT_FORWARD for random websites.

What's could be the issue?

This is an extract of debug log

023/08/22 15:50:28.564 kid1| 5,5| ModEpoll.cc(118) SetSelect: FD 52, 
type=1, handler=0, client_data=0, timeout=0
2023/08/22 15:50:28.564 kid1| 5,3| IoCallback.cc(112) finish: called for 
conn6384666 local=10.100.16.50:3128 remote=10.100.16.27:55496 FD 52 
flags=1 (-10, 0)
2023/08/22 15:50:28.564 kid1| 5,4| AsyncCall.cc(97) ScheduleCall: 
IoCallback.cc(131) will call TunnelBlindCopyReadHandler(conn6384666 
local=10.100.16.50:3128 remote=10.100.16.27:55496 FD 52 flags=1, 
flag=-10, data=0x56227564b5a8, size=0, buf=0x5622759c8290) [call56950993]
2023/08/22 15:50:28.564 kid1| 5,5| comm.cc(740) commCallCloseHandlers: 
commCallCloseHandlers: FD 52
2023/08/22 15:50:28.564 kid1| 5,5| comm.cc(748) commCallCloseHandlers: 
commCallCloseHandlers: ch->handler=0x5622757a60a0*2
2023/08/22 15:50:28.564 kid1| 5,4| AsyncCall.cc(97) ScheduleCall: 
comm.cc(753) will call tunnelClientClosed(FD -1, data=0x56227564b5a8) 
[call56950752]
2023/08/22 15:50:28.564 kid1| 5,5| comm.cc(748) commCallCloseHandlers: 
commCallCloseHandlers: ch->handler=0x562274eace10*1
2023/08/22 15:50:28.564 kid1| 33,5| AsyncCall.cc(97) ScheduleCall: 
comm.cc(753) will call ConnStateData::connStateClosed(FD -1, 
data=0x562276b148e8) [call56950739]
2023/08/22 15:50:28.564 kid1| 5,4| AsyncCall.cc(30) AsyncCall: The 
AsyncCall comm_close_complete constructed, this=0x5622759deec0 
[call56951079]
2023/08/22 15:50:28.564 kid1| 5,4| AsyncCall.cc(97) ScheduleCall: 
comm.cc(949) will call comm_close_complete(FD 52) [call56951079]
2023/08/22 15:50:28.564 kid1| 5,4| AsyncCallQueue.cc(61) fireNext: 
leaving TunnelBlindCopyReadHandler(conn6384669 local=10.100.16.37:18006 
remote=20.90.216.0:443 HIER_DIRECT flags=1, data=0x56227564b5a8, size=0, 
buf=0x562275f76900)
2023/08/22 15:50:28.564 kid1| 5,4| AsyncCallQueue.cc(59) fireNext: 
entering tunnelServerClosed(FD -1, data=0x56227564b5a8)
2023/08/22 15:50:28.564 kid1| 5,4| AsyncCall.cc(42) make: make call 
tunnelServerClosed [call56950820]
2023/08/22 15:50:28.564 kid1| 26,3| tunnel.cc(752) noteClosure: 
conn6384669 local=10.100.16.37:18006 remote=20.90.216.0:443 HIER_DIRECT 
flags=1
2023/08/22 15:50:28.564 kid1| 46,5| access_log.cc(308) stopPeerClock: 
First connection started: 1692715828.514861, current total response time 
value: -1000
2023/08/22 15:50:28.564 kid1| 26,4| tunnel.cc(1338) saveError: [none] ? 
ERR_CANNOT_FORWARD
2023/08/22 15:50:28.564 kid1| 33,3| Pipeline.cc(35) front: Pipeline 
0x562276b14930 front 0x56227599bf50*2
2023/08/22 15:50:28.564 kid1| 1,5| CodeContext.cc(60) Entering: conn6384666
2023/08/22 15:50:28.564 kid1| 87,3| clientStream.cc(198) 
clientStreamDetach: clientStreamDetach: Detaching node 0x562274d4f668
2023/08/22 15:50:28.564 kid1| 87,3| clientStream.cc(97) 
~clientStreamNode: Freeing clientStreamNode 0x562274d4f668
2023/08/22 15:50:28.564 kid1| 87,3| clientStream.cc(219) 
clientStreamDetach: clientStreamDetach: Calling 1 with cbdata 0x562275fa1af8
2023/08/22 15:50:28.564 kid1| 87,3| clientStream.cc(198) 
clientStreamDetach: clientStreamDetach: Detaching node 0x5622749be5d8
2023/08/22 15:50:28.564 kid1| 87,3| clientStream.cc(97) 
~clientStreamNode: Freeing clientStreamNode 0x5622749be5d8
2023/08/22 15:50:28.564 kid1| 33,3| Pipeline.cc(57) popMe: Pipeline 
0x562276b14930 drop 0x56227599bf50*3
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