Public bug reported:
Microsoft would like to request the inclusion of commits in all releases
supported on Azure. These commits will enable reporting 4 Kbytes of
dmesg information to Hyper-V when Linux takes a panic.
Microsoft would like to get all releases reporting this information, so
that we can automatically get a rich picture of Linux panics in Azure.
This will limit the need get serial console logs or other steps to
manually acquire debug info.
We would like to request the folloiwng commits to enable the
diagnostic/serviceability improvement:
f3a99e761efa ("x86/Hyper-V: Report crash data in die() when panic_on_oops is
set")
040026df7088 ("x86/Hyper-V: Report crash register data when
sysctl_record_panic_msg is not set")
a11589563e96 ("x86/Hyper-V: Report crash register data or kmsg before running
crash kernel")
73f26e526f19 ("x86/Hyper-V: Trigger crash enlightenment only once during system
crash.")
7f11a2cc10a4 ("x86/Hyper-V: Free hv_panic_page when fail to register kmsg dump")
74347a99e73a ("x86/Hyper-V: Unload vmbus channel in hv panic callback")
8afc06dd75c0 ("Drivers: hv: vmbus: Fix the issue with freeing up
hv_ctl_table_hdr")
ddcaf3ca4c3c ("Drivers: hv: vmus: Fix the check for return value from kmsg get
dump buffer")
81b18bce48af ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V
during panic")
7ed4325a44ea ("Drivers: hv: vmbus: Make panic reporting to be more useful")
** Affects: linux-azure (Ubuntu)
Importance: Undecided
Status: New
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Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1875456
Title:
Azure diagnostic/serviceability improvement
Status in linux-azure package in Ubuntu:
New
Bug description:
Microsoft would like to request the inclusion of commits in all
releases supported on Azure. These commits will enable reporting 4
Kbytes of dmesg information to Hyper-V when Linux takes a panic.
Microsoft would like to get all releases reporting this information,
so that we can automatically get a rich picture of Linux panics in
Azure. This will limit the need get serial console logs or other
steps to manually acquire debug info.
We would like to request the folloiwng commits to enable the
diagnostic/serviceability improvement:
f3a99e761efa ("x86/Hyper-V: Report crash data in die() when panic_on_oops is
set")
040026df7088 ("x86/Hyper-V: Report crash register data when
sysctl_record_panic_msg is not set")
a11589563e96 ("x86/Hyper-V: Report crash register data or kmsg before running
crash kernel")
73f26e526f19 ("x86/Hyper-V: Trigger crash enlightenment only once during
system crash.")
7f11a2cc10a4 ("x86/Hyper-V: Free hv_panic_page when fail to register kmsg
dump")
74347a99e73a ("x86/Hyper-V: Unload vmbus channel in hv panic callback")
8afc06dd75c0 ("Drivers: hv: vmbus: Fix the issue with freeing up
hv_ctl_table_hdr")
ddcaf3ca4c3c ("Drivers: hv: vmus: Fix the check for return value from kmsg
get dump buffer")
81b18bce48af ("Drivers: HV: Send one page worth of kmsg dump over Hyper-V
during panic")
7ed4325a44ea ("Drivers: hv: vmbus: Make panic reporting to be more useful")
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