Print the CPU and APIC ID that fails to respond to the init sequence, or
that didn't manage to reach the "callin" state. Expand a bit the printed
error messages. Otherwise the "Not responding." message is not easy to
understand by users.
Reported-by: Andrew Cooper <andrew.cooper3@citrix.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
---
Changes since v2:
- Adjust format string.
Changes since v1:
- Also print APIC ID.
---
xen/arch/x86/smpboot.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/xen/arch/x86/smpboot.c b/xen/arch/x86/smpboot.c
index 0189d6c332a4..b5dcc77bd574 100644
--- a/xen/arch/x86/smpboot.c
+++ b/xen/arch/x86/smpboot.c
@@ -618,10 +618,12 @@ static int do_boot_cpu(int apicid, int cpu)
smp_mb();
if ( bootsym(trampoline_cpu_started) == 0xA5 )
/* trampoline started but...? */
- printk("Stuck ??\n");
+ printk("APIC ID %#x (CPU%u) didn't finish start sequence\n",
+ apicid, cpu);
else
/* trampoline code not run */
- printk("Not responding.\n");
+ printk("APIC ID %#x (CPU%u) didn't respond to SIPI\n",
+ apicid, cpu);
}
}
--
2.49.0