git: kernel - Increase ACPI_SEMAPHORES_MAX_PENDING

Matthew Dillon dillon at
Wed Oct 18 21:45:12 PDT 2017

commit 51e1b77859b1cc4f8a67542a0135885121b29389
Author: Matthew Dillon <dillon at>
Date:   Wed Oct 18 21:43:27 2017 -0700

    * Increase ACPI_SEMAPHORES_MAX_PENDING to a very large number.
      Some of the ACPI codes assumes that mutexes always succeed,
      but the mutex code uses the semaphore code and the semaphore
      code appears to have an arbitrary failure path based on the
      number of concurrent requests.
    * This fixes kernel confusion and console spam from the ACPI
      subsystem when running sysctl -a concurrently on more than
      4 threads.

Summary of changes:
 sys/dev/acpica/Osd/OsdSynch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

DragonFly BSD source repository

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