Re: [Qemu-devel] lm32: tcg_handle_interrupt: assertion failed: (qemu_mutex_iothread_locked())

[Paolo Bonzini]

On 08/05/2018 03:49, Philippe Mathieu-Daudé wrote:
> #2  0x00007fe17d5eefa5 in g_assertion_message () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
> #3  0x00007fe17d5ef00a in g_assertion_message_expr () at
> /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
> #4  0x0000559d92ace7d5 in tcg_handle_interrupt (cpu=0x559d93aa35d0,
> mask=2) at qemu/accel/tcg/tcg-all.c:42
> #5  0x0000559d92af1b3c in cpu_interrupt (cpu=0x559d93aa35d0, mask=2) at
> qemu/include/qom/cpu.h:848
> #6  0x0000559d92af2516 in cpu_irq_handler (opaque=0x559d93aa35d0, irq=0,
> level=1) at qemu/hw/lm32/milkymist.c:59
> #7  0x0000559d92b6639d in qemu_set_irq (irq=0x559d93a0f250, level=1) at
> qemu/hw/core/irq.c:45
> #8  0x0000559d92b76d5f in qemu_irq_raise (irq=0x559d93a0f250) at
> qemu/include/hw/irq.h:16
> #9  0x0000559d92b7723e in update_irq (s=0x559d93adba00) at
> qemu/hw/intc/lm32_pic.c:51
> #10 0x0000559d92b7738e in lm32_pic_set_im (d=0x559d93adba00, im=1) at
> qemu/hw/intc/lm32_pic.c:82
> #11 0x0000559d92af72e0 in helper_wcsr_im (env=0x559d93aab870, im=1) at
> qemu/target/lm32/op_helper.c:105
> #12 0x00007fe155e250ca in code_gen_buffer ()
> #13 0x0000559d92adec8e in cpu_tb_exec (cpu=0x559d93aa35d0,
> itb=0x7fe155e24fc0 <code_gen_buffer+49043>)

All these calls into lm32_pic.c need to take the BQL.  They are all
wrong, but this one was unlucky (or lucky) enough to be caught.

Paolo