Booting error of L4Linux enabled SMP surpport

[Xiefeng (Stephen)]

Hi Adam,

Thank you for your prompt. I have found the panic reason.

Stephen 

-----Original Message-----
From: l4-hackers [mailto:l4-hackers-bounces at os.inf.tu-dresden.de] On Behalf Of Adam Lackorzynski
Sent: 2015年5月27日 6:35
To: l4-hackers at os.inf.tu-dresden.de
Subject: Re: Booting error of L4Linux enabled SMP surpport

On Fri May 22, 2015 at 07:49:14 +0000, Xiefeng (Stephen) wrote:
> Hi all,
> 
> I use entry L4Linux-mag-x86 in modules.list to start a L4Linux on L4Re successfully. The codes is l4re-snapshot-2014092821.
> L4Linux use x86-native_deconfig complie, use l4lx-gfx.cfg to start L4Linux. This config is just set one cpu for L4Linux.
> 
> If I set l4x_cpus=2 in l4lx-gfx.cfg, use x86-mp_vPCI_defconfig and set 
> CONFIG_NR_CPUS=2 to compile the L4Linux, when I start L4Linux, a kernel panic happened:
> 
> l4linux | Loading: rom/ramdisk-x86.rd
> l4linux | INITRD: Size of RAMdisk is 3072KiB l4linux | RAMdisk from 
> 88d70000 to 89070000 [3072KiB] l4linux | rtc not found l4linux | 
> l4lx_thread_create: Created thread 41f (timer0) (u:b3000a00, 
> v:00000000, sp:008e1fa8) l4linux | WARNING: Unknown wrmsr: 0000008b at 
> 0x414bad l4linux | WARNING: Unknown rdmsr: 00000186 at 0x85e1d6 
> l4linux | WARNING: Unknown rdmsr: 00000187 at 0x85e1d6 l4linux | 
> WARNING: Unknown wrmsr: 000000c1 at 0x85e2a7 l4linux | Launching cpu1 
> on pcpu 1 at 0x4024e0 l4linux | l4lx_thread_create: Created thread 420 
> (cpu1) (u:b3000800, v:b3000600, sp:008c7fa8) l4linux | WARNING: 
> Unknown wrmsr: 0000008b at 0x414bad l4linux | l4lx_thread_create: 
> Created thread 424 (timer1) (u:b3000400, v:00000000, sp:008e3fa8) 
> l4linux | Spurious IPI on CPU0: 4 l4linux | panic: going to sleep 
> forever, bye

Is there any output in the framebuffer window?
Anyway, change the  console=tty0 parameter in l4lx-gfx.cfg to
console=ttyLv0 and also add earlyprintk=1 (plus make sure that CONFIG_EARLY_PRINTK is enabled). Then run again.



Adam
-- 
Adam                 adam at os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/

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