Issue with yum/systemd?

[Jan Synacek]

Dave Johansen <davejohansen at gmail.com> writes:

> I posted this issue on the users mailing list but didn't get a response (
> https://lists.fedoraproject.org/pipermail/users/2015-March/459083.html ),
> so I thought I'd try here.
>
> I did a "yum remove" on F21 and it hung after the 2nd of 8 .rpms and
> systemd has been using ~40% of the CPU since then. Here's the stacktrace
> from yum:
>
> #0  0xb76debac in __kernel_vsyscall ()
> #1  0xb7510d03 in __waitpid_nocancel () from /lib/libpthread.so.0
> #2  0xb6fa4842 in rpmScriptRun () from /lib/librpm.so.3
> #3  0xb6f83c53 in runScript () from /lib/librpm.so.3
> #4  0xb6f8434f in runInstScript () from /lib/librpm.so.3
> #5  0xb6f8531b in rpmpsmRun () from /lib/librpm.so.3
> #6  0xb6f9a3cb in rpmteProcess () from /lib/librpm.so.3
> #7  0xb6fa1714 in rpmtsRun () from /lib/librpm.so.3
> #8  0xb6fd0f0a in rpmts_Run () from
> /usr/lib/python2.7/site-packages/rpm/_rpm.so
> #9  0xb758a609 in PyCFunction_Call () from /lib/libpython2.7.so.1.0
> #10 0xb754a645 in PyObject_Call () from /lib/libpython2.7.so.1.0
> #11 0xb75e6f33 in PyEval_CallObjectWithKeywords () from
> /lib/libpython2.7.so.1.0
> #12 0xb75616c6 in methoddescr_call () from /lib/libpython2.7.so.1.0
> #13 0xb754a645 in PyObject_Call () from /lib/libpython2.7.so.1.0
> #14 0xb75eb187 in PyEval_EvalFrameEx () from /lib/libpython2.7.so.1.0
> #15 0xb75ecfe1 in PyEval_EvalFrameEx () from /lib/libpython2.7.so.1.0
> #16 0xb75ee1ea in PyEval_EvalCodeEx () from /lib/libpython2.7.so.1.0
> #17 0xb75ecf11 in PyEval_EvalFrameEx () from /lib/libpython2.7.so.1.0
> #18 0xb75ee1ea in PyEval_EvalCodeEx () from /lib/libpython2.7.so.1.0
> #19 0xb75ecf11 in PyEval_EvalFrameEx () from /lib/libpython2.7.so.1.0
> #20 0xb75ee1ea in PyEval_EvalCodeEx () from /lib/libpython2.7.so.1.0
> #21 0xb75ecf11 in PyEval_EvalFrameEx () from /lib/libpython2.7.so.1.0
> #22 0xb75ee1ea in PyEval_EvalCodeEx () from /lib/libpython2.7.so.1.0
> #23 0xb75ecf11 in PyEval_EvalFrameEx () from /lib/libpython2.7.so.1.0
> #24 0xb75ee1ea in PyEval_EvalCodeEx () from /lib/libpython2.7.so.1.0
> #25 0xb75ee344 in PyEval_EvalCode () from /lib/libpython2.7.so.1.0
> #26 0xb76078db in run_mod () from /lib/libpython2.7.so.1.0
> #27 0xb7608d70 in PyRun_FileExFlags () from /lib/libpython2.7.so.1.0
> #28 0xb760a163 in PyRun_SimpleFileExFlags () from /lib/libpython2.7.so.1.0
> #29 0xb760a6c8 in PyRun_AnyFileExFlags () from /lib/libpython2.7.so.1.0
> #30 0xb761c911 in Py_Main () from /lib/libpython2.7.so.1.0
> #31 0x08048578 in main ()
>
> It looks like yum is waiting on some process. Is there a way I can tell what
> the process is and why it hasn't returned yet? Any other ideas on how I can
> figure out what is going wrong?
>
> Thanks,
> Dave

This is somewhat reminiscent of [1]. Any chance that the process that
actually uses the cpu is dbus related?

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1186018

Cheers,
-- 
Jan Synacek
Software Engineer, Red Hat
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