[Xen-changelog] [xen stable-4.9] x86/acpi: process softirqs while printing CPU ACPI data

[patchbot@xxxxxxx]

commit bd53bc85062c72dd86b3893e6afc105934d4c467
Author:     Roger Pau Monné <roger.pau@xxxxxxxxxx>
AuthorDate: Thu Feb 8 12:20:19 2018 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Feb 8 12:20:19 2018 +0100

    x86/acpi: process softirqs while printing CPU ACPI data
    
    Or else the watchdog triggers on boxes with a huge number of CPUs
    
    Reported-by: Simon Crowe <simon.crowe@xxxxxxxxxx>
    Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: a5579ee79ef8546dd47abe34d73dc9a69a14bbda
    master date: 2018-01-24 18:02:14 +0100
---
 xen/arch/x86/acpi/cpu_idle.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xen/arch/x86/acpi/cpu_idle.c b/xen/arch/x86/acpi/cpu_idle.c
index e2be474..be9ee0b 100644
--- a/xen/arch/x86/acpi/cpu_idle.c
+++ b/xen/arch/x86/acpi/cpu_idle.c
@@ -342,7 +342,10 @@ static void dump_cx(unsigned char key)
     printk("'%c' pressed -> printing ACPI Cx structures\n", key);
     for_each_online_cpu ( cpu )
         if (processor_powers[cpu])
+        {
             print_acpi_power(cpu, processor_powers[cpu]);
+            process_pending_softirqs();
+        }
 }
 
 static int __init cpu_idle_key_init(void)
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.9

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