This is the output of verify-stream-v2:
[user@dom0 scripts]$ sudo xl save fedora-23-dvm /fedora-23-dvm-savefile
Saving to /fedora-23-dvm-savefile new xl format (info 0x3/0x0/1991)
xc: info: Saving domain 4, type x86 PV
xc: Frames: 912384/912384 100%
xc: End of stream: 0/0 0%
[user@dom0 scripts]$ ./verify-stream-v2 -f xl -i /fedora-23-dvm-savefile
Stream Error:
Traceback (most recent call last):
File "./verify-stream-v2", line 82, in read_stream
VerifyLibxl(info, stream_read).verify()
File "/usr/lib64/python2.7/site-packages/xen/migration/libxl.py",
line 82, in verify
while self.verify_record() != REC_TYPE_end:
File "/usr/lib64/python2.7/site-packages/xen/migration/libxl.py",
line 136, in verify_record
record_verifiers[rtype](self, content[:length])
File "/usr/lib64/python2.7/site-packages/xen/migration/libxl.py",
line 155, in verify_record_libxc_context
VerifyLibxc(self.info, self.read).verify()
File "/usr/lib64/python2.7/site-packages/xen/migration/libxc.py",
line 132, in verify
while self.verify_record() != REC_TYPE_end:
File "/usr/lib64/python2.7/site-packages/xen/migration/libxc.py",
line 227, in verify_record
record_verifiers[rtype](self, content[:length])
File "/usr/lib64/python2.7/site-packages/xen/migration/libxc.py",
line 429, in <lambda>
VerifyLibxc.verify_record_x86_pv_vcpu_generic(s, x, "msrs"),
File "/usr/lib64/python2.7/site-packages/xen/migration/libxc.py",
line 323, in verify_record_x86_pv_vcpu_generic
" bytes long" % (name, minsz))
RecordError: X86_PV_VCPU_msrs record length must be at least 8 bytes long
On 07/21/2016 02:10 AM, Andrew Cooper wrote:
Is it possible to do an `xl save` equivalent on the domain, and run
tools/python/scripts/verify-stream-v2 against the resulting file? That
should identify whether it is a malformed X86_PV_VCPU_MSRS record but
otherwise intact stream, or whether the stream becomes corrupted elsewhere?
Thanks for your explanation of the bug.
Best regards,
Massimo
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