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encoding/gob: crash across program boundaries. #470

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gopherbot opened this issue Dec 28, 2009 · 3 comments
Closed

encoding/gob: crash across program boundaries. #470

gopherbot opened this issue Dec 28, 2009 · 3 comments
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@gopherbot
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@gopherbot gopherbot commented Dec 28, 2009

by soniakeys:

Before filing a bug, please check whether it has been fixed since
the latest release: run "hg pull -u" and retry what you did to
reproduce the problem.  Thanks.

What steps will reproduce the problem?
1. Two source files, http://pastebin.com/f26179f31 and
http://pastebin.com/f557e27bb
2. compile and link as two separate programs.
3. run the first one, then the second.

What is the expected output? What do you see instead?
expected: 42.
instead:
throw: runtime·mapaccess1: key not in map
panic PC=0x2ad775b949e8
... (complete output: http://pastebin.com/f47eacf2f)

What is your $GOOS?  $GOARCH?
linux, amd64

Which revision are you using?  (hg identify)
16355a0398ab+ tip

Please provide any additional information below.
Possibly related to https://golang.org/issue/459, but I
think this is a separate issue.

The problem doesn't reproduce when the two programs are combined into one!
 That is, http://pastebin.com/f724d1c22 produces the expected output, 42.

Possibly some state is stored in the program address space that needs to be
encoded in the gob?  This would allow the one-program version to work but
would leave the two program version to make a bad assumption at some point.
@rsc
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@rsc rsc commented Dec 28, 2009

Comment 1:

Owner changed to r...@golang.org.

Status changed to Accepted.

@robpike
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@robpike robpike commented Dec 29, 2009

Comment 2:

Status changed to Started.

@robpike
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@robpike robpike commented Dec 29, 2009

Comment 3:

This issue was closed by revision 1f55115.

Status changed to Fixed.

Merged into issue #-.

@gopherbot gopherbot added the fixed label Dec 29, 2009
@mikioh mikioh changed the title Gob crash across program boundaries. encoding/gob: crash across program boundaries. Feb 26, 2015
@golang golang locked and limited conversation to collaborators Jun 24, 2016
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