Bug 760669 - guestfish copy-in and <! (inline execution) don't mix well: pclose: No child processes
guestfish copy-in and <! (inline execution) don't mix well: pclose: No child ...
Product: Virtualization Tools
Classification: Community
Component: libguestfs (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Richard W.M. Jones
Depends On:
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Reported: 2011-12-06 13:39 EST by Richard W.M. Jones
Modified: 2011-12-07 07:13 EST (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2011-12-07 07:13:23 EST
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Description Richard W.M. Jones 2011-12-06 13:39:24 EST
Description of problem:

From a directory full of files, try this:

$ guestfish -N fs:ext2:10G -m /dev/sda1 

Welcome to guestfish, the libguestfs filesystem interactive shell for
editing virtual machine filesystems.

Type: 'help' for help on commands
      'man' to read the manual
      'quit' to quit the shell

><fs> <! for f in *; do echo copy-in "$f" /; done
pclose: No child processes

The error appears to be because the guestfish copy-in command
starts a tar subprocess.  It then calls wait(2).  It seems this
wait(2) is reaping the wrong process (the <! shell).  Really
it should call waitpid/wait4 instead to wait for the specific
process that it starts.

Version-Release number of selected component (if applicable):


Additional info:
Comment 1 Richard W.M. Jones 2011-12-07 07:13:23 EST
Fixed in commit 98edfac1ee70bcf15ee7caebc306e11cdbbb0d9a.

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