win 2019 vm-checkpoint failed on xcp-ng 7.6
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I met a strange issue when doing vm-checkpoint for a win 2019 VM:
# xe vm-checkpoint uuid=9e379243-2eba-b273-037c-60f5d53b4422 new-name-label=lirb-checkpoint The server failed to handle your request, due to an internal error. The given message may give details useful for debugging the problem. message: xenopsd internal error: (Failure "Error from emu-manager: xenguest Invalid argument")The xenguest error log in daemon.log:
May 19 10:54:39 xxxx-sanhoobt xenguest-39-emp[13598]: xc: detail: Failed allocation for dom 39: 1024 extents of order 0 May 19 10:54:39 xxxx-sanhoobt xenguest-39-emp[13598]: xc: error: Failed to populate physmap (16 = Device or resource busy): Int ernal error May 19 10:54:39 xxxx-sanhoobt xenguest-39-emp[13598]: xc: error: Failed to populate pfns for batch of 1024 pages: Internal erro r May 19 10:54:39 xxxx-sanhoobt xenguest-39-emp[13598]: xc: error: Restore failed (16 = Device or resource busy): Internal error May 19 10:54:39 xxxx-sanhoobt xenguest-39-emp[13598]: xenguest: xc_domain_restore: [1] Restore failed (16 = Device or resource busy) May 19 10:54:39 xxxx-sanhoobt emu-manager-39[13596]: poll failed because revents=0x11 for `xenguest`. May 19 10:54:39 xxxx-sanhoobt emu-manager-39[13596]: Error for emu `xenguest`: wait_for_event => Invalid argument May 19 10:54:39 xxxx-sanhoobt emu-manager-39[13596]: Error waiting for events: `Invalid argument`. May 19 10:54:39 xxxx-sanhoobt emu-manager-39[13596]: Error sending message to emu client: `Broken pipe`. May 19 10:54:39 xxxx-sanhoobt emu-manager-39[13596]: Emu `xenguest` exited with an error: 1. May 19 10:54:39 xxxx-sanhoobt emu-manager-39[13596]: Reporting: `error:xenguest Invalid argument#012`...The final error comes from xenguest. Any idea about this?
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Hmm weird. Sounds like emu manager related.
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I figured out that it is an old issue. It is fatal when memory-dynamic-max is less than memory-static-max.
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Wow, didn't know it was possible to violate those rules!
