[Bug server/15872] New: on rawhide, we're getting odd client.exp test failures

["dsmith at redhat dot com" <sourceware-bugzilla@sourceware.org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15872

            Bug ID: 15872
           Summary: on rawhide, we're getting odd client.exp test failures
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: server
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com

On rawhide, we're seeing some odd results from systemtap.server/client.exp. A
semi-random failure will occur when compiling a module. I typically get one
failure per run, but the failure moves around between tests.

The server reports the module name it compiled, but the module never makes it
back to the client:

====
executing: stap -p4 --unprivileged ./systemtap.server/hello.stp
--use-server=pipa01.englab.brq.redhat.com:54698
spawn stap -p4 --unprivileged ./systemtap.server/hello.stp
--use-server=pipa01.englab.brq.redhat.com:54698
stap_fd27dfa1dcd4afdc7d275807057a3d88_927.ko
PASS: Compile module using server with --unprivileged
'stap_fd27dfa1dcd4afdc7d275807057a3d88_927.ko'
/bin/ls: cannot access stap_fd27dfa1dcd4afdc7d275807057a3d88_927.ko: No such
file or directory
/bin/ls: cannot access stap_fd27dfa1dcd4afdc7d275807057a3d88_927.ko.sgn: No
such file or directory
FAIL: Module was created with --unprivileged
FAIL: Module was signed with --unprivileged
====

Dave Brolley has done some debugging on this issue, and found that the client
is getting a SIGHUP from somewhere.

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