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 system crash. x86/Hyper-V: Report crash register data or ksmg 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/kernel/cpu/mshyperv.c | 10 ++++++++ drivers/hv/channel_mgmt.c | 3 +++ drivers/hv/vmbus_drv.c | 55 ++++++++++++++++++++++++++++-------------- 3 files changed, 50 insertions(+), 18 deletions(-) -- 2.14.5