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[Qemu-devel] [PATCH] target-i386: fix "info lapic" segfault on isapc
From: |
Tejaswini |
Subject: |
[Qemu-devel] [PATCH] target-i386: fix "info lapic" segfault on isapc |
Date: |
Tue, 28 Mar 2017 12:49:43 +0530 |
From: Tejaswini Poluri <address@hidden>
Start QEMU with
"qemu-system-x86_64 -nographic -M isapc -serial none-monitor stdio"
and enter "info lapic" at the monitor prompt ⇒
Segmentation fault
Signed-off-by: Tejaswini Poluri <address@hidden>
---
target/i386/helper.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/target/i386/helper.c b/target/i386/helper.c
index e2af340..f11cac6 100644
--- a/target/i386/helper.c
+++ b/target/i386/helper.c
@@ -326,6 +326,10 @@ void x86_cpu_dump_local_apic_state(CPUState *cs, FILE *f,
{
X86CPU *cpu = X86_CPU(cs);
APICCommonState *s = APIC_COMMON(cpu->apic_state);
+ if (!s) {
+ cpu_fprintf(f, "local apic state not available\n");
+ return;
+ }
uint32_t *lvt = s->lvt;
cpu_fprintf(f, "dumping local APIC state for CPU %-2u\n\n",
--
2.7.4
- [Qemu-devel] [PATCH] target-i386: fix "info lapic" segfault on isapc,
Tejaswini <=