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Description of problem: On a Fedora20 host, when create a connection to connect libvirtd on a RHEL6.6 server via virt-manager, which will crash the server libvirtd. Version-Release number of selected component (if applicable): Client: virt-manager-1.0.1-3.fc20.noarch Serevr: libvirt-0.10.2-41.el6.x86_64 kernel-2.6.32-491.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1. Create connection(rhel6.6 host) via virt-manager on a FC20 host. 2. 3. Actual results: virt-manager raise: Error polling connection 'qemu+ssh://root@10.66.7.209/system': internal error: client socket is closed Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/engine.py", line 343, in _handle_tick_queue conn.tick(**kwargs) File "/usr/share/virt-manager/virtManager/connection.py", line 1209, in tick raise e # pylint: disable=raising-bad-type libvirtError: internal error: client socket is closed And check the libvirtd status on remote server: # service libvirtd status libvirtd dead but pid file exists Expected results: Connect successfully, and libvirtd on the server will not crash. Additional info:
Created attachment 922456 [details] libvirtd-crash.log
Relevant backtrace from the core dump: Thread 1 (Thread 0x7f192a742700 (LWP 32281)): #0 0x0000003a9d281461 in __strlen_sse2 () from /lib64/libc.so.6 #1 0x0000003a9d281176 in strdup () from /lib64/libc.so.6 #2 0x0000003768ea9eee in virDomainObjGetMetadata (vm=0x7f191c152d30, type=1, uri=0x0, caps=<value optimized out>, flags=0) at conf/domain_conf.c:16610 #3 0x000000000044f7f4 in qemuDomainGetMetadata (dom=0x7f18f406a5d0, type=1, uri=0x0, flags=0) at qemu/qemu_driver.c:14894 #4 0x0000003768f0155b in virDomainGetMetadata (domain=0x7f18f406a5d0, type=1, uri=0x0, flags=0) at libvirt.c:9623 #5 0x0000000000429e8c in remoteDispatchDomainGetMetadata (server=<value optimized out>, client=<value optimized out>, msg=<value optimized out>, rerr=0x7f192a741b80, args=0x7f18f40154a0, ret=0x7f18f4015480) at remote_dispatch.h:2218 #6 remoteDispatchDomainGetMetadataHelper (server=<value optimized out>, client=<value optimized out>, msg=<value optimized out>, rerr=0x7f192a741b80, args=0x7f18f40154a0, ret=0x7f18f4015480) at remote_dispatch.h:2191 #7 0x0000003768f44252 in virNetServerProgramDispatchCall (prog=0x1261480, server=0x1258a30, client=0x125c940, msg=0x125c540) at rpc/virnetserverprogram.c:431 #8 virNetServerProgramDispatch (prog=0x1261480, server=0x1258a30, client=0x125c940, msg=0x125c540) at rpc/virnetserverprogram.c:304 #9 0x0000003768f44eee in virNetServerProcessMsg (srv=<value optimized out>, client=0x125c940, prog=<value optimized out>, msg=0x125c540) at rpc/virnetserver.c:170 #10 0x0000003768f4558c in virNetServerHandleJob (jobOpaque=<value optimized out>, opaque=0x1258a30) at rpc/virnetserver.c:191 #11 0x0000003768e64b0c in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:144 #12 0x0000003768e643f9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #13 0x0000003a9d6079d1 in start_thread () from /lib64/libpthread.so.0 ---Type <return> to continue, or q <return> to quit--- #14 0x0000003a9d2e8ccd in ?? () from /lib64/libc.so.6 #15 0x0000000000000000 in ?? ()
This was already fixed as a part of the original backport but the build wasn't done yet. commit 7705900c436f9f8391ed9517db5c54feca375789 Author: Peter Krempa <pkrempa@redhat.com> Date: Thu Jul 17 14:50:39 2014 +0200 conf: Fix backport of metadata API code https://bugzilla.redhat.com/show_bug.cgi?id=1115039 RHEL-only, problems introduced in backport The clang checker found a few issues introduced by the backports of the metadata code. As the code is already in dist-git this patch fixes up the problems pointed out by Clang: 1) few possible strdup()'s of NULL argument 2) false positive as Clang considered the def local variable in virDomainObjGetMetadata as uninitialized Signed-off-by: Jiri Denemark <jdenemar@redhat.com> *** This bug has been marked as a duplicate of bug 1115039 ***