Comment 7 for bug 1336891

Revision history for this message
Dave Cheney (dave-cheney) wrote : Re: [Bug 1336891] Re: intermittent panic: runtime error: invalid memory address

Thanks Matt.

This is the compiler bug. AFAIK the fix has not landed in T yet.

On Mon, Jul 7, 2014 at 12:32 PM, Matt Bruzek
<email address hidden> wrote:
> Dave, I have attached the dmesg output to this bug. Please let me know
> if there is anything else you need.
>
> ** Attachment added: "The output from dmesg on the stilson-01 system."
> https://bugs.launchpad.net/juju-core/+bug/1336891/+attachment/4146863/+files/dmesg_output.txt
>
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> https://bugs.launchpad.net/bugs/1336891
>
> Title:
> intermittent panic: runtime error: invalid memory address
>
> Status in juju-core:
> Triaged
>
> Bug description:
> I am doing some Juju testing on the IBM power system and I found a
> juju-core panic on 3 of the 4 systems. The signal values are
> different but the stack traces on machine-0 and machine-1 look the
> same. But machine-2's stack trace is slightly different.
>
> Here is the stack trace from the machine-0.log file.
>
> panic: runtime error: invalid memory address or nil pointer dereference
> [signal 0xb code=0x1 addr=0x0]
>
> goroutine 14 [running]:
>
> goroutine 1 [chan receive]:
> launchpad.net_tomb.Wait.pN23_launchpad.net_tomb.Tomb
> /build/buildd/juju-core-1.18.4/src/launchpad.net/tomb/tomb.go:110
> launchpad.net_juju_core_worker.Wait.pN37_launchpad.net_juju_core_worker.runner
> /build/buildd/juju-core-1.18.4/src/launchpad.net/juju-core/worker/runner.go:124
> main.Run.pN17_main.MachineAgent
> /build/buildd/juju-core-1.18.4/src/launchpad.net/juju-core/cmd/jujud/machine.go:166
> launchpad.net_juju_core_cmd.Run.pN40_launchpad.net_juju_core_cmd.SuperCommand
> /build/buildd/juju-core-1.18.4/src/launchpad.net/juju-core/cmd/supercommand.go:303
> launchpad.net_juju_core_cmd.Main
> /build/buildd/juju-core-1.18.4/src/launchpad.net/juju-core/cmd/cmd.go:244
> main.jujuDMain
> /build/buildd/juju-core-1.18.4/src/launchpad.net/juju-core/cmd/jujud/main.go:107
> main.Main
> /build/buildd/juju-core-1.18.4/src/launchpad.net/juju-core/cmd/jujud/main.go:122
> main.main
> /build/buildd/juju-core-1.18.4/src/launchpad.net/juju-core/cmd/jujud/main.go:139
>
>
> The version of Juju I am using is: 1.18.4
> $ juju --version
> 1.18.4-trusty-ppc64
>
> The version of kernel is 3.13.0-30
> $ uname -a
> Linux stilson-01 3.13.0-30-generic #54-Ubuntu SMP Mon Jun 9 22:46:02 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux
>
> Please let me know if you need any more information.
>
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