| commit | 7d93e79a048e54676a0ede79b9bc005acbb9dd9c | |
| author | Fredrik Holmqvist <fredrik.holmqvist@gmail.com> | |
| Sat, 30 Dec 2017 18:17:58 +0000 (30 19:17 +0100) | ||
| committer | Fredrik Holmqvist <fredrik.holmqvist@gmail.com> | |
| Sat, 30 Dec 2017 18:26:01 +0000 (30 19:26 +0100) | ||
| tree | 8711c1e7aee177819287f68e31c117627990c326 | treesnapshot (tar.gz zip) |
| parent | 699b4bbab949b0f38f396cfadb5d34f9c4425bfe | commitdiff |
Latest ACPI update removed some essential configuration
* The global lock, needed for hw <-> os to sync, was a no op.
This means that OS and HW could read and write to same value
at the same time, causing garbled data and crashes. This is easiest
to see in battery status, where battery values and OEM name would
become garbage. It also causes instability and failure to shutdown
* ACPI used 64 bit addressing (which it normally should) on 32 bit.
This would cause page faults as it would jump to incorrect addresses
* The global lock, needed for hw <-> os to sync, was a no op.
This means that OS and HW could read and write to same value
at the same time, causing garbled data and crashes. This is easiest
to see in battery status, where battery values and OEM name would
become garbage. It also causes instability and failure to shutdown
* ACPI used 64 bit addressing (which it normally should) on 32 bit.
This would cause page faults as it would jump to incorrect addresses
| src/add-ons/kernel/bus_managers/acpi/acpica/include/platform/achaiku.h | diffblobblamehistory |