Re: [Qemu-devel] Status of my hacks on the MTTCG WIP branch

[Pranith Kumar]

Hi Alex,

On Tue, Jan 12, 2016 at 12:29 PM, Alex Bennée <address@hidden> wrote:

>   https://github.com/stsquad/qemu/tree/mttcg/multi_tcg_v8_wip_ajb_fix_locks
>

I built this branch and ran an arm64 guest. It seems to be failing similarly to what I reported earlier:

#0  0x00007ffff2211cc9 in __GI_raise (address@hidden) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007ffff22150d8 in __GI_abort () at abort.c:89
#2  0x000055555572014c in qemu_ram_addr_from_host_nofail (ptr=0xffffffc000187863) at /home/pranith/devops/code/qemu/cputlb.c:357
#3  0x00005555557209dd in get_page_addr_code (env1=0x555556702058, addr=18446743798833248356) at /home/pranith/devops/code/qemu/cputlb.c:568
#4  0x00005555556db98c in tb_find_physical (cpu=0x5555566f9dd0, pc=18446743798833248356, cs_base=0, flags=18446744071830503424) at /home/pranith/devops/code/qemu/cpu-exec.c:224
#5  0x00005555556dbaf4 in tb_find_slow (cpu=0x5555566f9dd0, pc=18446743798833248356, cs_base=0, flags=18446744071830503424) at /home/pranith/devops/code/qemu/cpu-exec.c:268
#6  0x00005555556dbc77 in tb_find_fast (cpu=0x5555566f9dd0) at /home/pranith/devops/code/qemu/cpu-exec.c:311
#7  0x00005555556dc0f1 in cpu_arm_exec (cpu=0x5555566f9dd0) at /home/pranith/devops/code/qemu/cpu-exec.c:492
#8  0x00005555557050ee in tcg_cpu_exec (cpu=0x5555566f9dd0) at /home/pranith/devops/code/qemu/cpus.c:1486
#9  0x00005555557051af in tcg_exec_all (cpu=0x5555566f9dd0) at /home/pranith/devops/code/qemu/cpus.c:1515
#10 0x0000555555704800 in qemu_tcg_cpu_thread_fn (arg=0x5555566f9dd0) at /home/pranith/devops/code/qemu/cpus.c:1187
#11 0x00007ffff25a8182 in start_thread (arg=0x7fffd20c8700) at pthread_create.c:312
#12 0x00007ffff22d547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

The arguments I used are as follows:

(gdb) show args

Argument list to give program being debugged when it is started is "-m 1024M -M virt -cpu cortex-a57 -global virtio-blk-device.scsi=off -device virtio-scsi-device,id=scsi -drive file=arm64disk.qcow2,id=coreimg,cache=unsafe,if=none -device scsi-hd,drive=coreimg -netdev user,id=unet -device virtio-net-device,netdev=unet -kernel vmlinuz -initrd initrd.img -append root=/dev/sda2 -display sdl -redir tcp:2222::22 -smp 2".

Does something look obviously wrong to you in the arg list?

Thanks!

--
Pranith