> VMware accepts a structured guest-crash event, but a host configured with > backdoor.coredumpOnCrash may terminate the VM before the hypercall > returns. Keep this event separate from the pre-kdump log sender. > > Register a panic-only kmsg dumper with late_initcall_sync(), after built-in > dumpers registered by then. Skip the event while a crash kernel is loaded > so the host cannot terminate the guest before kdump saves its vmcore. > > Issue the event at most once. With CONFIG_PRINTK=n, use a late INT_MIN > panic notifier. An unexpected dumper registration failure with printk > enabled leaves reporting disabled rather than overtaking working dumpers. > > Link: > https://lore.kernel.org/r/[email protected] > Co-developed-by: Brennan Lamoreaux <[email protected]> > Signed-off-by: Brennan Lamoreaux <[email protected]> > Co-developed-by: Alexey Makhalov <[email protected]> > Signed-off-by: Alexey Makhalov <[email protected]> > Signed-off-by: Zack Rusin <[email protected]>
Sashiko has reviewed this patch and found no issues. It looks great! -- Sashiko AI review ยท https://sashiko.dev/#/patchset/[email protected]?part=6
