Issue #3107 has been updated by calicant. Priority changed from Normal to Low Target version changed from 5.0.0 to master
Finally got it to work... http://lists.dragonflybsd.org/pipermail/users/2020-July/381294.html Luca ---------------------------------------- Bug #3107: ACPI interrupt storm when loading i915 on Lenovo T460 http://bugs.dragonflybsd.org/issues/3107#change-13917 * Author: oyvinht * Status: New * Priority: Low * Assignee: * Category: ACPI * Target version: master ---------------------------------------- This is on a Lenovo T460 (firmware r06uj56d) root# uname -a DragonFly slaptop 5.1-DEVELOPMENT DragonFly v5.1.0.381.ge8ac90-DEVELOPMENT #10: Mon Dec 4 07:52:28 CET 2017 root@slaptop:/usr/obj/usr/src/sys/SLAPTOP x86_64 After doing: root# kldload i915 the systems gets very slow, and looking at vmstat I see interrupts from acpi0 increasing by 2000-5000 every second (using kern.livelock_lowater=1000 and kern.livelock_limit=2000 makes the system usable again): root# vmstat -i interrupt total rate acpi0 1681307 1925 FWIW I have tested enabling DDB and INVARIANTS in the kernel, and built /sys/dev/acpica with ACPI_DEBUG=1, which fills the kernel message buffer with messages like: evgpe-0634 EvGpeDetect : Read registers for GPE 60-67: Status=40, Enable=46, RunEnable=46, WakeEnable=00 evgpe-0607 EvGpeDetect : Ignore disabled registers for GPE 68-6F: RunEnable=00, WakeEnable=00 evgpe-0607 EvGpeDetect : Ignore disabled registers for GPE 70-77: RunEnable=00, WakeEnable=00 evgpe-0607 EvGpeDetect : Ignore disabled registers for GPE 78-7F: RunEnable=00, WakeEnable=00 evevent-0361 EvFixedEventDetect : Fixed Event Block: Enable 00000120 Status 00000001 evgpe-0607 EvGpeDetect : Ignore disabled registers for GPE 00-07: RunEnable=00, WakeEnable=00 evgpe-0607 EvGpeDetect : Ignore disabled registers for GPE 08-0F: RunEnable=00, WakeEnable=00 -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: http://bugs.dragonflybsd.org/my/account
