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When manager is stopped there are sometimes runaway qemu
processes still running. Set PDEATHSIG for all subprocesses.
We never need child processes outliving parents.
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Add a new isolated VM for machines that you cannot easily manage. It
assumes the machine is only available through SSH and create a reverse
proxy to ensure the machine can connect back to syz-manager.
Signed-off-by: Thomas Garnier <thgarnie@google.com>
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* Port console to Darwin
* Get syz-executor to build correctly
* Do not export unix and syscall constants
* Add presubmit test
* Add myself to contributors
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VM infrastructure currently has several problems:
- Config struct is complete mess with a superset of params for all VM types
- verification of Config is mess spread across several places
- there is no place where VM code could do global initialization
like creating GCE connection, uploading GCE image to GCS,
matching adb devices with consoles, etc
- it hard to add private VM implementations
such impl would need to add code to config package
which would lead to constant merge conflicts
- interface for VM implementation is mixed with interface for VM users
this does not allow to provide best interface for both of them
- there is no way to add common code for all VM implementations
This change solves these problems by:
- splitting VM interface for users (vm package) and VM interface
for VM implementations (vmimpl pacakge), this in turn allows
to add common code
- adding Pool concept that allows to do global initialization
and config checking at the right time
- decoupling manager config from VM-specific config
each VM type now defines own config
Note: manager configs need to be changed after this change:
VM-specific parts are moved to own "vm" subobject.
Note: this change also drops "local" VM type.
Its story was long unclear and there is now syz-stress which solves the same problem.
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