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[libvirt] Regarding libvirtd crash in virDomainLookupByName(..) similar to bug 903238/915353/924756

Hello All,

I work in Cisco Virtualization team and I found this email list from libvirt.org

We are hitting a random libvirtd crash with a traceback during guest shutdown - 

#3  0x00007f4a34a2d4ad in malloc_printerr (action="" str=0x7f4a34acb682 "corrupted double-linked list", ptr=<value optimized out>) at malloc.c:5949
#4  0x00007f4a34a2d58c in malloc_consolidate (av=<value optimized out>) at malloc.c:4852
#5  0x00007f4a34a2f83c in _int_malloc (av=0x7f4a34cffa20, bytes=262320) at malloc.c:4184
#6  0x00007f4a34a310dc in __libc_calloc (n=<value optimized out>, elem_size=<value optimized out>) at malloc.c:3901
#7  0x00007f4a3620469f in virAlloc () from /auto/mcp-project97/mcp_dev/BLD-BLD_MCP_DEV_LATEST_20130609_000113/linkfarm/x86_64/usr/lib64/libvirt.so.0
#8  0x00007f4a3626e93c in prepareCall () from /auto/mcp-project97/mcp_dev/BLD-BLD_MCP_DEV_LATEST_20130609_000113/linkfarm/x86_64/usr/lib64/libvirt.so.0
#9  0x00007f4a36271463 in call () from /auto/mcp-project97/mcp_dev/BLD-BLD_MCP_DEV_LATEST_20130609_000113/linkfarm/x86_64/usr/lib64/libvirt.so.0
#10 0x00007f4a362624d2 in remoteDomainLookupByName () from /auto/mcp-project97/mcp_dev/BLD-BLD_MCP_DEV_LATEST_20130609_000113/linkfarm/x86_64/usr/lib64/libvirt.so.0
#11 0x00007f4a3624d09f in virDomainLookupByName () from /auto/mcp-project97/mcp_dev/BLD-BLD_MCP_DEV_LATEST_20130609_000113/linkfarm/x86_64/usr/lib64/libvirt.so.0

I believe this TB is quite similar to the one reported by various Redhat bugs mentioned in the subject. We are running libvirt version 0.8.4. I understand this issue has been fixed in the later versions of libvirt but due to business reasons, we are not able to upgrade it yet. Hence I was trying to look for a patch that might have fixed the issue.

I found this link that supposedly describes the patch but it is not accessible to people outside red hat network (I think!)

It would be really helpful if you could point me out a patch if it exists!

Thank you in advance.
Udayan Bapat
Cisco – Foundation Engineering
Research Triangle Park, NC

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