Public bug reported:
I am using Juju on Power 8 hardware and I get a panic when I use juju to
ssh to a system. The reproduction steps are
juju bootstrap -e local
juju deploy local:trusty/ubuntu
juju ssh ubuntu/0
(use the session to the local machine and after some time the panic
happens and the screen is unreadable.)
ubuntu@ubuntu-local-machine-1:~$ panic: runtime error: invalid memory address
or nil pointer dereference
[signal 0xb code=0x1 addr=0x8]
goroutine 11 [running]:
code.google.com_p_go.net_websocket.Send.N40_code.
google.com_p_go.net_websocket.Codec
/build/buildd/juju-core-1.18.1/src/code.google.com/p/go.net/webso
cket/websocket.go:293
launchpad.net_juju_core_rpc_jsoncodec.Send.N48_launchpad.net_juju_core_rpc_jsonc
odec.wsJSONConn
/build/buildd/juju-core-1.18.1/src/launchpad.net/juju-core/rpc/jsoncodec/conn.go:
21
launchpad.net_juju_core_rpc_jsoncodec.WriteMessage.pN43_launchpad.net_juju_core_rpc_jsoncodec.Codec
/build/buildd/juju-core-1.18.1/src/launchpad.net/juju-core/rpc/jsoncodec/codec.go:178
launchpad.ne
t_juju_core_rpc.send.pN32_launchpad.net_juju_core_rpc.Conn
/build/buildd/juju-core-1.18.1/src/launch
pad.net/juju-core/rpc/client.go:72
launchpad.net_juju_core_rpc.Go.pN32_launchpad.net_juju_core_rpc.Con
n
/build/buildd/juju-core-1.18.1/src/launchpad.net/juju-core/rpc/client.go:174
launchpad.net_juju_co
re_rpc.Call.pN32_launchpad.net_juju_core_rpc.Conn
/build/buildd/juju-core-1.18.1/src/launchpad.net/
juju-core/rpc/client.go:148
launchpad.net_juju_core_state_api.Call.pN39_launchpad.net_juju_core_state_
api.State
/build/buildd/juju-core-1.18.1/src/launchpad.net/juju-core/state/api/apiclient.go:168
launchpad.net_juju_core_state_api.Ping.pN39_launchpad.net_juju_core_state_api.State
/build/buildd/juj
u-core-1.18.1/src/launchpad.net/juju-core/state/api/apiclient.go:158
launchpad.net_juju_core_state_api
.heartbeatMonitor.pN39_launchpad.net_juju_core_state_api.State
/build/buildd/juju-core-1.18.1/sr
c/launchpad.net/juju-core/state/api/apiclient.go:149
created by
launchpad.net_juju_core_state_api.Open
/build/buildd/juju-core-1.18.1/src/launchpad.net/juju-core/state/api/apiclient.go:143
goroutine 1
[syscall]:
goroutine in C code; stack unavailable
goroutine 3 [syscall]:
goroutine in C code; stac
k unavailable
goroutine 10 [IO wait]:
code.google.com_p_go.net_websocket.ReadByte.N57_code.google.com_p
_go.net_websocket.hybiFrameReaderFactory
/build/buildd/juju-core-1.18.1/src/code.google.com/p/go.n
et/websocket/hybi.go:113
code.google.com_p_go.net_websocket.NewFrameReader.N57_code.google.com_p_go.ne
t_websocket.hybiFrameReaderFactory
/build/buildd/juju-core-1.18.1/src/code.google.com/p/go.net/webso
cket/hybi.go:126
code.google.com_p_go.net_websocket.Receive.N40_code.google.com_p_go.net_websocket.Cod
ec
/build/buildd/juju-core-1.18.1/src/code.google.com/p/go.net/websocket/websocket.go:314
launchpad.n
et_juju_core_rpc_jsoncodec.Receive.N48_launchpad.net_juju_core_rpc_jsoncodec.wsJSONConn
/build/bu
ildd/juju-core-1.18.1/src/launchpad.net/juju-core/rpc/jsoncodec/conn.go:25
launchpad.net_juju_core_rpc
_jsoncodec.ReadHeader.pN43_launchpad.net_juju_core_rpc_jsoncodec.Codec
/build/buildd/juju-core-1
.18.1/src/launchpad.net/juju-core/rpc/jsoncodec/codec.go:113
launchpad.net_juju_core_rpc.loop.pN32_lau
nchpad.net_juju_core_rpc.Conn
/build/buildd/juju-core-1.18.1/src/launchpad.net/juju-core/rpc/se
rver.go:344
launchpad.net_juju_core_rpc.input.pN32_launchpad.net_juju_core_rpc.Conn
/build/buildd/juj
u-core-1.18.1/src/launchpad.net/juju-core/rpc/server.go:317
created by
launchpad.net_juju_core_rpc.Sta
rt.pN32_launchpad.net_juju_core_rpc.Conn
/build/buildd/juju-core-1.18.1/src/launchpad.net/juju-cor
e/rpc/server.go:200
Here are the specifics on the host system.
ubuntu@stilson-01:~$ uname -a
Linux stilson-01 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:50:31 UTC 2014
ppc64le ppc64le ppc64le GN
U/Linux
ubuntu@stilson-01:~$ dpkg -l | grep juju
ii juju 1.18.1-0ubuntu1.1
all next generation
service orchestration system
ii juju-core 1.18.1-0ubuntu1.1
ppc64el Juju is devops
distilled - client
ii juju-deployer 0.3.6-0ubuntu2
all Deploy complex
stacks of services using Juju
ii juju-jitsu 0.20-1
all external tools
to enhance juju
ii juju-local 1.18.1-0ubuntu1.1
all dependency pack
age for the Juju local provider
ii juju-mongodb 2.4.9-0ubuntu3
ppc64el MongoDB object/
document-oriented database for Juju
ii juju-quickstart 1.4.1+bzr88+ppa25~ubuntu14.04.1
all Easy configurat
ion of Juju environments
ii python-jujuclient 0.17.5-0ubuntu2
all Python API clie
nt for juju
ubuntu@stilson-01:~$ getconf PAGE_SIZE
65536
I got this error when testing a fix for another bug:
https://bugs.launchpad.net/ubuntu/+source/gccgo-4.9/+bug/1304754
Since the dmesg looks different we believe this is a new problem.
** Affects: juju-core (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "The dmesg output from stilson-01 after installing 1.18.1
juju-core."
https://bugs.launchpad.net/bugs/1347322/+attachment/4160410/+files/dmesg_1.18_output.txt
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https://bugs.launchpad.net/bugs/1347322
Title:
juju ssh results in a panic: runtime error
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