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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!)
https://bugzilla.redhat.com/show_bug.cgi?id=915353

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
Virtualization
Research Triangle Park, NC



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