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authorSverker Eriksson <[email protected]>2015-07-10 16:56:15 +0200
committerLukas Larsson <[email protected]>2015-08-10 15:22:00 +0200
commit79b504ca9134121a63c049292d8636d3cd0d99b4 (patch)
tree8843b3995ee7c64f0d67d365f6b24a2c2ef52759 /lib/compiler/src/v3_life.hrl
parent12002949e5435d19c750fe2cd8e897b4059f875a (diff)
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Teach smp VM how to deal with crash of a linked trace port
Problem: The sys-msg-dispather crashes the VM when trying to send exit signals from the links of the terminating trace port. If try-lock of the linked process fails, a pending exit is scheduled and erts_scheduler_data() is then called to find "my" run queue. But sys-msg-dispatcher is not a scheduler and has no scheduler data, hence SEGV. Fix: If not a scheduler and we cannot get process locks, schedule process in its previous run-queue.
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