OvmfPkg/MemDebugLogLib: use AcquireSpinLockOrFail
Drop log lines if we can't get the spin lock. Not nice, but better than
risking a deadlock.
Some background: Most of edk2 runs single-threaded on the BSP, so if
something holds the lock it is rather unlikely that waiting is going to
help. Specifically I think a deadlock can happen if (a) a timer
interrupt arrives while the lock is held, and (b) some higher-TPL timer
handler tries to print something to the debug log.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
1 file changed
