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[Qemu-devel] qemu-2.9 crashes in tcg_handle_interrupt() during winx64 bo

From: Igor Mammedov
Subject: [Qemu-devel] qemu-2.9 crashes in tcg_handle_interrupt() during winx64 boot
Date: Thu, 30 Mar 2017 16:46:57 +0200

(PS: resend due to wrong qemu-devel mail list address in original email)

Regression bisects to:

commit 8d04fb55dec381bc5105cb47f29d918e579e8cbd
Author: Jan Kiszka <address@hidden>
Date:   Thu Feb 23 18:29:11 2017 +0000
    tcg: drop global lock during TCG code execution

with following stack trace:
#2  0x00007fffee48f0c5 in g_assertion_message (address@hidden, address@hidden 
"qemu/translate-common.c", address@hidden, address@hidden <__FUNCTION__.22084> 
"tcg_handle_interrupt", address@hidden "assertion failed: 
    at gtestutils.c:2432
#3  0x00007fffee48f15a in g_assertion_message_expr (domain=0x0, 
file=0x555555c8aa80 "qemu/translate-common.c", line=0x22, func=0x555555c8aae0 
<__FUNCTION__.22084> "tcg_handle_interrupt", expr=<optimized out>)
    at gtestutils.c:2455
#4  0x000055555577808b in tcg_handle_interrupt (cpu=0x55555683a400, mask=0x2)
    at qemu/translate-common.c:34
#5  0x00005555557fe900 in cpu_interrupt (cpu=0x55555683a400, mask=0x2)
    at qemu/include/qom/cpu.h:795
#6  0x00005555557ffb6a in apic_update_irq (s=0x5555568587a0) at 
#7  0x00005555557ff9d4 in apic_set_tpr (s=0x5555568587a0, val=0x0) at 
#8  0x000055555580168d in cpu_set_apic_tpr (dev=0x5555568587a0, val=0x0)
    at qemu/hw/intc/apic_common.c:77
#9  0x00005555558c5edb in helper_write_crN (env=0x555556842690, reg=0x8, t0=0x0)
    at qemu/target/i386/misc_helper.c:159
#10 0x00007fffd66e1020 in code_gen_buffer ()
#11 0x0000555555776f9f in cpu_tb_exec (cpu=0x55555683a400, itb=0x7fffd0fcbf50)
    at qemu/cpu-exec.c:165
#12 0x0000555555777ca4 in cpu_loop_exec_tb (cpu=0x55555683a400, 
tb=0x7fffd0fcbf50, last_tb=0x7fffd002a968, tb_exit=0x7fffd002a964, 
sc=0x7fffd002a980) at qemu/cpu-exec.c:566
#13 0x0000555555777fbe in cpu_exec (cpu=0x55555683a400) at qemu/cpu-exec.c:674
#14 0x00005555557a9af0 in tcg_cpu_exec (cpu=0x55555683a400) at qemu/cpus.c:1247
#15 0x00005555557a9d62 in qemu_tcg_cpu_thread_fn (arg=0x55555683a400) at 
#16 0x00007fffeffb5dc5 in start_thread (arg=0x7fffd002b700) at 
#17 0x00007fffed10a34d in clone () at 

to reproduce build qemu with following options:

./configure --enable-debug --target-list=x86_64-softmmu

and run qemu in tcg mode with install image from msdn as following:

  qemu-system-x86_64 -m 1G  \

It seems to be affecting Windows x64 variants only.
Assert also happens with WinEnt 8.1/WinServer 2003 Ent x64

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