Allow exempting some processes from overcommit#5
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This allows you to set e.g.
WINE_PREVENT_OVERCOMMIT_EXEMPT=ubaagent.exeto exempt some processes from Wine overcommit prevention.This is necessary for UbaAgent, which can not tolerate memory allocation failures under some circumstances. In particular,
Session::ProcessExitedin UbaAgent will occur when processes are exiting due to memory pressure, and this function allocates through them_deadProcesses.emplace_backcall. When Wine overcommit prevention is enabled, the underlyingmi_malloc_alignedcall fromemplace_backcan returnnullptr, resulting in a segmentation fault.