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editing the file when mount the file system using 9pfs. it will report fsync failed.
I have get a fsync error when I use the 9pfs on the kvm guest. it appears when I use vi editor and sysbench. I have not found the reason yet. can you tell something about it? the attache is the picture. and there is no any log which I can provide.
My qemu version is qemu-kvm-0.13.0, and my host linux distributions is 2.6.32-431.el6.x86_64 and the guest vm is the same version which enable 9pfs and 9pnet support. I use the string of "mount -t 9p -o trans=virtio test_mount /tmp/shared/ -oversion=9p2000.L,posixacl" to get the file system.
resovled it, this is because in the kernel 2.6.32; the 9pfs doesn't implement the fsync function. just back port the code from higher version, can resolve it.
like this patch
https://gitorious.org/linux-gemini/mainline/commit/7a4439c406c21b1e900ed497cec1a79d05b38c07
Closing, as this problem has been resolved according to the last comment.
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