DragonFly commits List (threaded) for 2010-10
git: nata - properly teardown interrupts on ENXIO
Author: Matthew Dillon <email@example.com>
Date: Thu Oct 28 23:23:48 2010 -0700
nata - properly teardown interrupts on ENXIO
* When a ata controller cannot be attached (e.g. due to AHCI having
already taken its resources) be sure to teardown and release any
resources that had been obtained.
* This fixes a panic on certain motherboards (e.g. gigabyte / phenomX6)
where the ata controller ENXIO'd but left interrupt handlers setup.
An interrupt would then occur, access stale memory, and blow the machine
Summary of changes:
sys/dev/disk/nata/ata-chipset.c | 43 +++++++++++++++++++++++++++++++++-----
sys/dev/disk/nata/ata-pci.c | 9 ++++++-
2 files changed, 44 insertions(+), 8 deletions(-)
DragonFly BSD source repository