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Message #144694
[Bug 1463584] Re: [Hyper-V] Add support for VMBus panic notifier handler
This has also been verified on the released 15.10 and it's working as expected.
Please mark this as Fix Released for Wily if there are no further comments.
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https://bugs.launchpad.net/bugs/1463584
Title:
[Hyper-V] Add support for VMBus panic notifier handler
Status in linux package in Ubuntu:
In Progress
Status in linux source package in Trusty:
Fix Released
Status in linux source package in Utopic:
Fix Released
Status in linux source package in Vivid:
Fix Released
Status in linux source package in Wily:
In Progress
Bug description:
Please take these patches to our Hyper-V VMBus driver to enable kernel
crash notification:
Drivers: hv: vmbus: Add support for VMBus panic notifier handler
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/hv?id=96c1d0581d00f7abe033350edb021a9d947d8d81
Drivers: hv: vmbus: Correcting truncation error for constant HV_CRASH_CTL_CRASH_NOTIFY
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/drivers/hv?id=5ef5b6927f14f29cacd78fa1fb861661a5367f13
In the event of a kernel panic, VMBus driver supports sending five 64-bit values to be recorded in the log. On Hyper-V this is recorded in the event log, and on Azure we can use this data to better detect failures like this in the guest VM and surface that as part of our diagnostics information.
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References