CommitterMatthew Dillon (1)
AuthorMatthew Dillon (1)
BranchesDragonFly_RELEASE_5_8 (1)


DragonFlyBSD/src d9bb5df — sys/contrib/dev/acpica/source/components/parser psloop.c

by Matthew Dillon on ⎇
acpi - Catch infinite parser recursions

* Instrument AcpiPsParseLoop() and limited recursion depth to 5.
  Generally speaking this loop can call a very deep stack of
  routines and eat up the kernel stack.  A depth limit of 5 might
  be a bit too low, but it doesn't take much more to blow up
  our current 16KB kernel stack.

  This prevents the kernel from double-faulting on excessively bad
  AML.

* Works around reported boot-time double-faults on some laptops.
DeltaFile
+26-0sys/contrib/dev/acpica/source/components/parser/psloop.c
+26-01 files

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