diff options
| author | Colin Percival <cperciva@FreeBSD.org> | 2025-04-23 15:17:51 +0000 |
|---|---|---|
| committer | Colin Percival <cperciva@FreeBSD.org> | 2025-04-23 15:19:28 +0000 |
| commit | ce9a34b1614e37dc3f8763586448063408c7bf16 (patch) | |
| tree | 0b6d4d6f77d0d28b3e9a50f9cd68cec687661211 | |
| parent | 2187ec93ada1c7399f2f3537920f6277bec4a0ef (diff) | |
Turn off hw.pci.intx_reroute in EC2
Having this enabled on Graviton systems prior to Graviton 4 results in
a resource leak and a kernel panic after repeated hotplug/unplug.
MFC after: 3 days
Sponsored by: Amazon
| -rw-r--r-- | release/tools/ec2.conf | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/release/tools/ec2.conf b/release/tools/ec2.conf index 507d9acabfd9..d6cb85959183 100644 --- a/release/tools/ec2.conf +++ b/release/tools/ec2.conf @@ -79,6 +79,12 @@ ec2_common() { # delay before rescanning upon device detach. echo 'debug.acpi.quirks="56"' >> ${DESTDIR}/boot/loader.conf + # The default behaviour of re-routing INTx interrupts causes a + # resource leak on INTRng (aka on Graviton systems). Repeated + # hotplug/unplug on PCI (not PCIe) Graviton systems ends up with + # a kernel panic unless we disable this. + echo 'hw.pci.intx_reroute=0' >> ${DESTDIR}/boot/loader.conf + # Load the kernel module for the Amazon "Elastic Network Adapter" echo 'if_ena_load="YES"' >> ${DESTDIR}/boot/loader.conf |