When data block is smaller than 4096 (and no EOF is reached), python's
io.read() will call read(2) again to get more data. This may deadlock if
the other end of connection will write anything only after receiveing
data (which is the case for qubes.Filecopy).
Disable this buffering by using syscall wrappers directly. To not affect
performance that much, increase buffer size to 64k.
FixesQubesOS/qubes-issues#2948
* devel-6:
qvm-ls: fix total VM size reporting
doc: update manpage of qvm-service
tools: qvm-service tool
tests: too much copy&paste
features: serialize True as '1'
tools/qvm-start-gui: add --force-stubdomain options
tools/qvm-shutdown: fix help message
tools/qvm-shutdown: drop --force option, it isn't supported anymore
New qvm-backup tool can either use pre-existing backup profile
(--profile), or - when running in dom0 - can create new one based on
used options (--save-profile).
This commit add a tool itself, update its man page, and add tests for
it.
FixesQubesOS/qubes-issues#2931
Do not check for qubesd socket (at module import time), because if not
running at this precise time, it will lead to wrong choice. And a weird
error message in consequence (looking for qrexec-client-vm in dom0).
FixesQubesOS/qubes-issues#2917
* devel-2-qvm-run-1:
Make pylint happy
tools/qvm-run: fix handling EOF
tests: mark qvm-run tests with "expected failure"
tools/qvm-run: fix handling copying stdin to the process
since qvm-run use multiprocessing.Process now, stdin sent to it is
processed in separate process and doesn't come back to
TestApp.actual_calls (self.app). Annotate tests for now, to be fixed
later.
The most important part is fixing resize handling - call size_func
before data_func, but after tar gets initial data (and output file
size).
But other than that, it makes the process a little faster.
QubesOS/qubes-issues#1214
Opt for a simple one-liner error messages, instead of meaningless stack
trace (it's most of the time about qubesd responding with error, so the
stack trace of actual problem is elsewhere).
This will be less realistic (private.img of 2MB?!), but makes tests much
quicker. And since tar is used to make files sparse, we don't really
test multi-part archives anyway.
Based on "backup compatibility" tests, which manually assemble the
backup. This is because we don't have access to actual backup creation
code here.
QubesOS/qubes-issues#1214
