From: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>
This patchset fixes some issues in the Hyper-V panic code path.
Patch 1 resolves issue that panic system still responses network
packets.
Patch 2-3,5-6 resolves crash enlightenment issues.
Patch 4 is to set crash_kexec_post_notifiers to true for Hyper-V
VM in order to report crash data or kmsg to host before running
kdump kernel.
Tianyu Lan (6):
x86/Hyper-V: Unload vmbus channel in hv panic callback
x86/Hyper-V: Free hv_panic_page when fail to register kmsg dump
x86/Hyper-V: Trigger crash enlightenment only once during
0;136;0c0;136;0c system crash.
x86/Hyper-V: Report crash register data or kmsg before running crash
kernel
x86/Hyper-V: Report crash register data when sysctl_record_panic_msg
is not set
x86/Hyper-V: Report crash data in die() when panic_on_oops is set
arch/x86/hyperv/hv_init.c | 6 +++-
arch/x86/kernel/cpu/mshyperv.c | 10 +++++++
drivers/hv/channel_mgmt.c | 3 ++
drivers/hv/vmbus_drv.c | 62 ++++++++++++++++++++++++++++++------------
include/asm-generic/mshyperv.h | 2 +-
5 files changed, 63 insertions(+), 20 deletions(-)
--
2.14.5
