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[microblaze-uclinux] Bad page state in process 'swapper'
Hello everybody,
While struggling to get my Microblaze board running with Petalinux, I ran
into the following:
- first I encountered the problem when I downloaded the image.srec that the
fsrom is at the wrong location. I have described this in the thread
"Inconsitency between image.srec and image.bin". This caused that the fsrom
area was not relocated for the .bss section.
- next I noticed that early_printk stops when the .bss section is cleared.
This is due to a variable used by early_printk() that resides in the .bss
section. I found out that early_printk() is called before that
setup_early_printk() is called, which sets the varialble
"early_console_initialized" in the .bss section. So I have added
setup_early_printk() after the clearing of the .bss section in
machine_early_init(). I have passed the "keep" option with
setup_early_printk(). After this I got the boot output as appended below.
This listing ends up with a "bad page state" in the "swapper".
Has anyone a clue on this?
Remark that there is a "keeping early console" notice in the listing. This
is due to the "keep" option as mentioned before. If I don't pass this
option, the output stalls at that vary position. So it seems that printk()
is not continueing the job of early_printk().
Any help is welcome.
Best regards, Cor Venner
Found romfs @ 0x480dd000 (0x000e1000)
#### klimit 480ee000 ####
Moving 0x000e1000 bytes from 0x480dd000 to 0x480ed23c
New klimit: 0x481cf000
#### keep on printing ####
#### leaving 'machine_early_int' ####
Linux version 2.6.20-uc0 (cv@linux) (gcc version 3.4.1 ( PetaLinux 0.20
Build -r
c1 050607 )) #6 Fri Nov 9 20:58:25 CET 2007
setup_cpuinfo: initialising
setup_cpuinfo: No PVR support in CPU. Using static compile-time info
set_cpuinfo_static: Using static CPU info.
setup_memory: max_mapnr: 0x49fff
setup_memory: min_low_pfn: 0x48000
setup_memory: max_low_pfn: 0x2000
On node 0 totalpages: 8192
DMA zone: 64 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 8128 pages, LIFO batch:0
Normal zone: 0 pages used for memmap
Built 1 zonelists. Total pages: 8128
Kernel command line:
OPB INTC #0 at 0x41200000
PID hash table entries: 128 (order: 7, 512 bytes)
keeping early console
Dentry cache hash table entries: 4096 (order: 2, 0384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Bad page state in process 'swapper'
page:481d4420 flags:0x00000000 mapping:00000000 mapcount:-262144 count:0
Trying to fix it up, but a reboot is needed
Backtrace:
Stack:
480cbeac 480096f8 00000000 480d5b34 00000000 4802a9a4 480bb624 480c4434
481d4420 00000008 00000000 00000000 fffc0000 00000000 481d4420 4802b138
00000000 00000220 80000000 00001fff 00048200 00000001 481d4420 00000000
Call Trace: [<480096f8>] [<480d5b34>] [<4802a9a4>] [<4802b138>] [<480d5d4c>]
[<4
80d6a88>] [<480d58f0>] [<480d7ab0>] [<480d5ae0>] [<48000000>] [<48000000>]
[<480
00000>] [<48000000>] [<480d3090>] [<480cc710>] [<480cc6f8>] [<480cc71c>]
[<48000
c30>]
Bad page state in process 'swapper'
page:481d44a0 flags:0x00000000 mapping:00000000 mapcount:-262144 count:0
Trying to fix it up, but a reboot is needed
Backtrace:
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