Public bug reported:
host(pc):ubuntu 10.1
qemu:qemu-1.1.0-1
target:realview-pbx-a9
kernel:2.6.34.10
gcc:4.4.6
command line, and output as follow:
-----------------------------------------
majun@majun-Lenovo-Product:~/qemu$ qemu-system-arm -M realview-pbx-a9 -kernel
~/emb_linux/trunk/bsp/versatile_qemu/kernel/linux-2.6.34.10/arch/arm/boot/zImage
-initrd rootfs.ext2 -nographic -append "console=ttyAMA0 earlyprintk"
Uncompressing Linux... done, booting the kernel.
Linux version 2.6.34.10 (majun@majun-Lenovo-Product) (gcc version 4.4.6
(crosstool-NG 1.13.2 - hsan-5115) ) #40 SMP Tue Jun 19 18:53:13 BST 2012
CPU: ARMv7 Processor [410fc090] revision 0 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: ARM-RealView PBX
Ignoring unrecognised tag 0x00000000
bootconsole [earlycon0] enabled
Memory policy: ECC disabled, Data cache writealloc
Ignoring RAM at 80000000-8fffffff (vmalloc region overlap).
realview_pbx_map_io:117
realview_pbx_map_io:119
>>>>>>>>>hung here
QEMU: Terminated
-----------------------------------------
modify code to add some debug info
-----------------------------------------
arch/arm/mach-realview/realview_pbx.c
line 115:
static void __init realview_pbx_map_io(void)
{
printk("%s:%d\r\n", __FUNCTION__, __LINE__);
iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
printk("%s:%d\r\n", __FUNCTION__, __LINE__); //!!!!!!! the last
printk output
if (core_tile_pbx11mp() || core_tile_pbxa9mp()) //!!!!!!! hung here
(here is a read to system control register 0x100000XX) !!!!!!
{
printk("%s:%d\r\n", __FUNCTION__, __LINE__);
iotable_init(realview_local_io_desc,
ARRAY_SIZE(realview_local_io_desc));
printk("%s:%d\r\n", __FUNCTION__, __LINE__);
}
}
-----------------------------------------
** Affects: qemu
Importance: Undecided
Status: New
--
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https://bugs.launchpad.net/bugs/1015226
Title:
arm realview pbx hung
Status in QEMU:
New
Bug description:
host(pc):ubuntu 10.1
qemu:qemu-1.1.0-1
target:realview-pbx-a9
kernel:2.6.34.10
gcc:4.4.6
command line, and output as follow:
-----------------------------------------
majun@majun-Lenovo-Product:~/qemu$ qemu-system-arm -M realview-pbx-a9 -kernel
~/emb_linux/trunk/bsp/versatile_qemu/kernel/linux-2.6.34.10/arch/arm/boot/zImage
-initrd rootfs.ext2 -nographic -append "console=ttyAMA0 earlyprintk"
Uncompressing Linux... done, booting the kernel.
Linux version 2.6.34.10 (majun@majun-Lenovo-Product) (gcc version 4.4.6
(crosstool-NG 1.13.2 - hsan-5115) ) #40 SMP Tue Jun 19 18:53:13 BST 2012
CPU: ARMv7 Processor [410fc090] revision 0 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: ARM-RealView PBX
Ignoring unrecognised tag 0x00000000
bootconsole [earlycon0] enabled
Memory policy: ECC disabled, Data cache writealloc
Ignoring RAM at 80000000-8fffffff (vmalloc region overlap).
realview_pbx_map_io:117
realview_pbx_map_io:119
>>>>>>>>>hung here
QEMU: Terminated
-----------------------------------------
modify code to add some debug info
-----------------------------------------
arch/arm/mach-realview/realview_pbx.c
line 115:
static void __init realview_pbx_map_io(void)
{
printk("%s:%d\r\n", __FUNCTION__, __LINE__);
iotable_init(realview_pbx_io_desc, ARRAY_SIZE(realview_pbx_io_desc));
printk("%s:%d\r\n", __FUNCTION__, __LINE__); //!!!!!!! the last
printk output
if (core_tile_pbx11mp() || core_tile_pbxa9mp()) //!!!!!!! hung here
(here is a read to system control register 0x100000XX) !!!!!!
{
printk("%s:%d\r\n", __FUNCTION__, __LINE__);
iotable_init(realview_local_io_desc,
ARRAY_SIZE(realview_local_io_desc));
printk("%s:%d\r\n", __FUNCTION__, __LINE__);
}
}
-----------------------------------------
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