https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229429
Bug ID: 229429
Summary: FIRST_MSI_INT is too low for large core count systems,
panic on boot
Product: Base System
Version: CURRENT
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
As mentioned on the freebsd-current list:
https://lists.freebsd.org/pipermail/freebsd-current/2018-April/069203.html
FIRST_MSI_INT is too low for some large systems. Without raising this constant,
the kernel panics on boot unless MSI is disabled.
The original reporter on the mailing list reported success raising it to 512,
my system required raising it higher (768 worked). John Baldwin suggested
making this a dynamically calculated value.
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