Some additional information. I have run an strace of the "xl
migrate-receive"
process on servers with xen-utils-4.4 4.4.1-9+deb8u4 (which fails) and
4.4.1-9+deb8u3 (which works).
On systems with 4.4.1-9+deb8u4 installed, strace shows exactly 395 lines
like
this one:
ioctl(5, SNDCTL_DSP_RESET, 0x7ffeb47b44b0) = -1 EAGAIN (Resource
temporarily unavailable)
On systems with 4.4.1-9+deb8u3 installed, these hundreds of lines do not
appear
at all - on servers that have identical hardware as those running
4.4.1-9+deb8u4.
I can provide the entire strace output if needed.
