Bugs item #2835276, was opened at 2009-08-10 21:38
Message generated for change (Tracker Item Submitted) made by agriffis
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Category: qemu
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Aron Griffis (agriffis)
Assigned to: Nobody/Anonymous (nobody)
Summary: segfault using -cpu pentium3 on coreduo
Initial Comment:
qemu-0.11.0-rc1 and qemu-kvm-HEAD segfault with -cpu pentium3 on ProLiant DL380
G5 (dual-socket dual-core Intel Xeon 5160). This is a regression from
qemu-0.10.6 which does not have the problem.
Using -cpu coreduo avoids the segfault. -cpu athlon works too.
I bisected to find that the problem is introduced by
0ed8cfc05bb012e52b92771bb13bef0e2e80c828 and can be worked around by the
following patch to HEAD which effectively reverts that commit:
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1096,11 +1096,11 @@ CPUState *pc_new_cpu(const char *cpu_model)
}
if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) {
env->cpuid_apic_id = env->cpu_index;
- /* APIC reset callback resets cpu */
- apic_init(env);
} else {
qemu_register_reset((QEMUResetHandler*)cpu_reset, env);
}
+ /* APIC reset callback resets cpu */
+ apic_init(env);
/* kvm needs this to run after the apic is initialized. Otherwise,
* it can access invalid state and crash.
----------------------------------------------------------------------
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