Re: [PULL 0/9] final misc fixes for 5.1-rc0

[Philippe Mathieu-Daudé]

Hi Peter,

On 7/15/20 10:06 AM, Peter Maydell wrote:
> On Tue, 14 Jul 2020 at 10:52, Alex Bennée <alex.bennee@linaro.org> wrote:
>>
>> The following changes since commit 20c1df5476e1e9b5d3f5b94f9f3ce01d21f14c46:
>>
>>   Merge remote-tracking branch 
>> 'remotes/kraxel/tags/fixes-20200713-pull-request' into staging (2020-07-13 
>> 16:58:44 +0100)
>>
>> are available in the Git repository at:
>>
>>   https://github.com/stsquad/qemu.git tags/pull-misc-for-rc0-140720-1
>>
>> for you to fetch changes up to 4e6400c97024c2660b6db8aab1f0677744449f36:
>>
>>   plugins: expand the bb plugin to be thread safe and track per-cpu 
>> (2020-07-14 09:08:25 +0100)
>>
>> ----------------------------------------------------------------
>> Final fixes for 5.1-rc0
>>
>>   - minor documentation nit
>>   - clean all deps on re(configure)
>>   - docker.py bootstrap fixes
>>   - tweak containers.yml wildcards
>>   - fix float16 nan detection
>>   - conditional use of -Wpsabi
>>   - fix missing iotlb data for plugins
>>   - proper locking for helper based bb count
> 
> Fails "make check" on aarch32 and aarch64 hosts, because
> eg qemu-system-arm segfaults on startup:

What host/distrib are you using?

I can not reproduce on aarch64 (Ubuntu 20.04 LTS) using:
gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0

Any config in particular?

> 
> $ gdb --args ./arm-softmmu/qemu-system-arm -M virt -display none
> [...]
> (gdb) r
> Starting program: /home/pm/qemu/build/all/arm-softmmu/qemu-system-arm
> -M virt -display none
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
> [New Thread 0xffffe873e550 (LWP 1666261)]
> [New Thread 0xffffe7f3d550 (LWP 1666262)]
> [New Thread 0xffffe72e7550 (LWP 1666263)]
> 
> Thread 4 "qemu-system-arm" received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0xffffe72e7550 (LWP 1666263)]
> 0x0000aaaaab1da004 in object_class_dynamic_cast_assert (class=0xaaaaabc209e0,
>     typename=typename@entry=0xaaaaab33bfe8 "cpu",
> file=file@entry=0xaaaaab3201a0 "/home/pm/qemu/accel/tcg/cputlb.c",
>     line=line@entry=1025, func=func@entry=0xaaaaab3202f0
> <__func__.35278> "tlb_fill") at /home/pm/qemu/qom/object.c:917
> 917         trace_object_class_dynamic_cast_assert(class ?
> class->type->name : "(null)",