Bug 199611
Summary: | [bisected] stall/hang on 4.15 and newer kernel with some Xeon skylake CPUs and extended APIC | ||
---|---|---|---|
Product: | ACPI | Reporter: | Rick Warner (rick) |
Component: | Config-Interrupts | Assignee: | Zhang Rui (rui.zhang) |
Status: | RESOLVED PATCH_ALREADY_AVAILABLE | ||
Severity: | normal | CC: | lenb, rui.zhang, tglx, yu.c.chen |
Priority: | P1 | ||
Hardware: | Intel | ||
OS: | Linux | ||
Kernel Version: | 4.15 or newer | Subsystem: | |
Regression: | No | Bisected commit-id: | |
Attachments: | dmesg log of the issue occurring |
Description
Rick Warner
2018-05-03 16:04:40 UTC
Thomas Gleixner provided this patch which resolved the problem: --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -124,6 +124,7 @@ static void init_x2apic_ldr(void) goto update; } cmsk = cluster_hotplug_mask; + cmsk->clusterid = cluster; cluster_hotplug_mask = NULL; update: this_cpu_write(cluster_masks, cmsk); can you provide the link to the patch? |