Re: [Qemu-devel] -M niagara -nodefaults crashes

[Artyom Tarasenko]

On Fri, Jan 20, 2017 at 2:26 PM, Markus Armbruster <address@hidden> wrote:
> Watch this:
>
>     $ gdb --args bld/sparc64-softmmu/qemu-system-* -nodefaults -M niagara
>     [...]
>     (gdb) r
>     Starting program: 
> /work/armbru/qemu/bld/sparc64-softmmu/qemu-system-sparc64 -nodefaults -M 
> niagara
>     [Thread debugging using libthread_db enabled]
>     Using host libthread_db library "/lib64/libthread_db.so.1".
>     [New Thread 0x7fffce25d700 (LWP 17401)]
>     [New Thread 0x7fffcb0c1700 (LWP 17402)]
>     Could not open option rom 'nvram1': No such file or directory
>     Could not open option rom '1up-md.bin': No such file or directory
>     Could not open option rom '1up-hv.bin': No such file or directory
>     Could not open option rom 'reset.bin': No such file or directory
>     Could not open option rom 'q.bin': No such file or directory
>     Could not open option rom 'openboot.bin': No such file or directory
>
>     Thread 1 "qemu-system-spa" received signal SIGSEGV, Segmentation fault.
>     qemu_chr_fe_init (address@hidden, s=0x0,
>         errp=0x555556497e68 <error_abort>) at 
> /work/armbru/qemu/qemu-char.c:897
>     897     if (s->is_mux) {
>     (gdb) bt
>     #0  0x0000555555833500 in qemu_chr_fe_init (address@hidden, s=0x0, 
> errp=0x555556497e68 <error_abort>) at /work/armbru/qemu/qemu-char.c:897
>     #1  0x0000555555890a0a in serial_mm_init (address@hidden, address@hidden, 
> address@hidden, address@hidden, address@hidden, chr=<optimized out>, end=
>         DEVICE_BIG_ENDIAN) at /work/armbru/qemu/hw/char/serial.c:995
>     #2  0x00005555558107e2 in niagara_init (machine=0x55555653bf80)
>         at /work/armbru/qemu/hw/sparc64/niagara.c:149
>     #3  0x00005555557726ea in main (argc=<optimized out>, argv=<optimized 
> out>, envp=<optimized out>) at /work/armbru/qemu/vl.c:4544
>
> In other code that's similarly stuck in the pre-qdev world, the call to
> serial_mm_init() is conditional on serial_hds[0].

Will add a check. A -nodefaults with -M niagara makes currenlty a
little sense though: there is no any known firmware which can use any
other configuration. Do we have any machines in qemu which don't
support -nodefaults ?

Artyom

-- 
Regards,
Artyom Tarasenko

SPARC and PPC PReP under qemu blog: http://tyom.blogspot.com/search/label/qemu