lkml.org 
[lkml]   [2016]   [Jun]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH 0/2] ioapic hot-removal bugs
Date
Hi All,

While testing ioapic hotplug, two bugs were found.

1) acpi_ioapic_add() is only called during hotadd of ioapics. Those
already present during system boot are not added, and thus cannot be
hot-removed.

2) ioapics[i].iomem_res were assigned the wrong pointers, causing panic
while hot-removing ioapics.

On a 4-socket brickland, hot-removal of the 3 sockets can be done
only after applying these two patches.

Regards,
Rui

Rui Wang (2):
Support hot-removal of IOAPICs present during boot
x86/ioapic: Fix wrong pointers in ioapic_setup_resources()

arch/x86/kernel/apic/io_apic.c | 18 +++++++-----------
drivers/acpi/internal.h | 2 --
drivers/acpi/ioapic.c | 7 ++++---
drivers/acpi/pci_root.c | 2 +-
drivers/pci/setup-bus.c | 5 ++++-
include/linux/acpi.h | 3 +++
6 files changed, 19 insertions(+), 18 deletions(-)

--
1.8.3.1

\
 
 \ /
  Last update: 2016-06-07 10:01    [W:0.045 / U:0.968 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site