Bug 222574

Summary: Double fault under QEMU
Product: Base System Reporter: Igor Serikov <iserikov>
Component: kernAssignee: freebsd-bugs (Nobody) <bugs>
Status: New ---    
Severity: Affects Some People    
Priority: ---    
Version: 11.1-RELEASE   
Hardware: i386   
OS: Any   

Description Igor Serikov 2017-09-24 19:55:41 UTC 
Fatal double fault:
eip = 0xc0d3f866
esp = 0xcffbea18
ebp = 0xcffbea34
cpuid = 0; apic id = 00
panic: double fault
cpuid = 0
KDB: stack backtrace:
#0 0xc0bc1b3e at kdb_backtrace+0x4e
#1 0xc0b8472e at vpanic+0x10e
#2 0xc0b84614 at panic+0x14
#3 0xc1098589 at dblfault_handler+0x99

qemu-system-i386 with KVM module: "QEMU emulator version 2.8.1(Debian 1:2.8+dfsg-6+deb9u2)"
Host: Debian 9.1 AMD64
Comment 1 Igor Serikov 2017-09-27 07:00:33 UTC 
Sorry. The error happened without KVM.
The first fault might be related to network driver (em0 interface).