* xapp902 with 2.6.17 -- uartlite & ramdisk problems
@ 2006-10-23 18:49 robert corley
0 siblings, 0 replies; 2+ messages in thread
From: robert corley @ 2006-10-23 18:49 UTC (permalink / raw)
To: David Bolcsfoldi; +Cc: linux linuxppc-embedded
David et al;=0A=0AIn my seemingly neverending effort to get linux up on the=
ML403, I went the route David B. did and worked with the xapp902 reference=
desing. I have met with a little success and appeal for some assistance..=
.=0A=0A1. The uart is dog slow. I suspect it has to do with interrupts =
(note the console dump below). I see this line:=0A=0A [ 2.637345] u=
artlite.0: ttyUL0 at MMIO 0xa0000000 (irq =3D =0A=0A and I think that th=
e interrupt isn't properly registered with the PIC. What do you think?=0A=
=0A2. Can you look below and comment on the ram disk size? I am not sur=
e what this value should be. My ramdisk=0A image is 4658942 bytes. I r=
ecall reading somewhere that the value for the initrd ram disk should be ab=
out 10k larger =0A than the ramdisk size to allow for decompression. Th=
e # of pages and page size is throwing me off. Comments?=0A=0A-corley=0A=
=0A=0A=0A=0A=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
console dump =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=0A[ 0.000000] Linux version 2.6.17.1 (rdcorle@athe=
na) (gcc version 3.4.2) #2 Mon Oct 23 17:58:11 UTC 2006 =
=0A[ 0.000000] Xilinx ML403 Reference System (Virtex-4 FX) =
=0A[ 0.000000] Built 1=
zonelists =0A[ 0.000000] Kernel command =
line: console=3DttyUL0 single ip=3Doff root=3D/dev/ram rw =0A[ 0.000000]=
Xilinx INTC #0 at 0xD1000FC0 mapped to 0xFDFFFFC0 =
=0A[ 0.000000] PID hash table ent=
ries: 512 (order: 9, 2048 bytes) =
=0A[ 0.000151] Console: colour dummy device 80x25 =
=0A[ 0.000560] Dentry ca=
che hash table entries: 8192 =
=0A[ 0.001271] Inode-cache hash table entries: 4096 (order: 2, 1638=
4 bytes) =
=0A[ 0.013924] Memory: 58572k available (1348k kernel code, 344k=
data, 80k init, 0k highmem) =0A[ 0.200435] Mount-cache hash =
table entries: 512 =0A[ =
0.203108] checking if image is initramfs...it isn't (no cpio magic); looks=
like an initrd =0A[ 2.504612] Freeing initrd memory: 4549k=
freed =0A[ 2.508719] NE=
T: Registered protocol family 16 =
=0A[ 2.518260] NET: Registered protocol family 2 =
=0A[ 2.583989] IP route cache hash table e=
ntries: 51 =0A[ 2.58446=
7] TCP established hash table entries: 2048 (order: 3, 32768 bytes) =
=0A[=
2.584936] TCP bind hash table entries: 1024 (order: 2, 20480 bytes) =
=0A[ =
2.585222] TCP: Hash tables configured (established 2048 bind 1024) =
=0A[ 2.58=
5257] TCP reno registered =0A[ 2.591657=
] io scheduler noop registered =
=0A[ 2.591817] io scheduler anticipatory registered (default) =
=0A[ 2.591912] io sche=
duler deadline registered =0A=
[ 2.592049] io scheduler cfq registered =
=0A[ 2.637345] uartlite.0: ttyUL0 at MMIO 0xa0000000 (irq =3D =
=0A[ 40.942337] R=
AMDISK driver initialized: 16 RAM disks of 4096K size 1024 block size =
=0A[ 42.944862] eth%d: XTemac using sgDMA mode. =
=0A[ 44.072738] eth%d: XTemac buffer_descriptor_space=
: phy: 0xbb8000, virt: 0xff1 00000, size: 0x5000 =0A[ 4=
6.424830] eth0: Xilinx TEMAC #0 at 0x60000000 mapped to 0xC5008000, irq=3D0=
=
=0A[ 48.289878] mice: PS/2 mouse device common for all mice =
=0A[ 49.694042] TCP bic re=
gistered =0A[ 50.524157] RAMDISK: Compres=
sed image found at block 0 =
=0A[ 52.672304] RAMDISK: incomplete write (-28 !=3D 3276 =
=0A[ 56.000551] VFS: Mounted ro=
ot (ext2 filesystem). =0A=
[ 57.243671] Freeing unused kernel memory: 80k init =
=0A[ 58.579050] attempt to access beyond e=
nd of device =0A[ 59.=
867968] ram0: rw=3D0, want=3D10018, limit=3D8192 =
=0A[ 61.064912] Buffer I/O error on device ram0, lo=
gical block 5008 =
=0A[ 62.653149] attempt to access beyond end of device =
=0A[ 63.942154] ram0: rw=3D0, wa=
nt=3D10020, limit=3D8192 =
=0A[ 65.139082] Buffer I/O error on device ram0, logical block 5009 =
=0A[ 66.72730=
5] attempt to access beyond end of device =
=0A[ 68.016306] ram0: rw=3D0, want=3D10022, limit=3D81=
92 =0A[ 69.212688] BUG: s=
oft lockup detected on CPU#0! =
=0A[ 69.212711] Call Trace: =0A[ 69.212733=
] [C024F780] [C000906C] show_stack+0x48/0x194 (unreliable) =
=0A[ 69.212808] [C0=
24F7C0] [C0031874] softlockup_tick+0xb4/0xd0 =
=0A[ 69.212853] [C024F7E0] [C001DDE8] run_=
local_timers+0x18/0x28 =
=0A[ 69.212905] [C024F7F0] [C001DE70] update_process_times+0x78=
/0xb4 =0A=
[ 69.212956] [C024F810] [C00045B4] timer_interrupt+0xd4/0x204 =
=0A[ 69.213000] [C024F=
850] [C000351C] ret_from_except+0x0/ =
=0A[ 69.213043] [C024F910] [C0015A9C] release_console_se=
m+0xe0/0x284 =
=0A[ 69.213105] [C024F950] [C0015DF4] vprintk+0x1b4/0x384 =
=0A[ 69.213149] [C024F9F0] [C=
0016014] printk+0x50/0x60 =
=0A[ 69.213189] [C024FA70] [C00B98DC] generic_make_request+0xc0/0x20c =
=0A[ 6=
9.213252] [C024FAB0] [C00B9AA8] submit_bio+0x80/0xd8 =
=0A[ 69.213294] [C024FAF0] [C005602C] s=
ubmit_bh+0x14c/0x1a0 =
=0A[ 69.213342] [C024FB10] [C005854C] block_read_full_page+0x310/0x328=
=0A[ =
69.213391] [C024FB80] [C007D4FC] do_mpage_readpage+0x38c/0x538 =
=0A[ 69.213437] [C0=
24FC00] [C007D880] mpage_readpage+0x50/0x78 =
=0A[ 69.213477] [C024FC50] [C00B0120] ext2_r=
eadpage+0x1c/0x2c =
=0A[ 69.213516] [C024FC60] [C0034824] read_cache_page+0xf8/0x208 =
=0A[ 69.213562] [=
C024FC90] [C00AD490] ext2_get_page+0x24/0x308 =
=0A[ 69.213623] [C024FCC0] [C00ADAE8] ext2=
_find_entry+0x7c/0x17c =0A[ 69.213663] [C024FD10] [C00ADC=
78] ext2_inode_by_name+0x18/0x58=0A[ 69.213704] [C024FD30] [C00B191C] ext=
2_lookup+0x54/0xd8=0A[ 69.213744] [C024FD50] [C0062E4C] do_lookup+0x138/0=
x19c=0A[ 69.213793] [C024FD80] [C0063918] __link_path_walk+0x8f4/0x1014=
=0A[ 69.213837] [C024FDD0] [C00640C0] link_path_walk+0x88/0x150=0A[ 69.=
213879] [C024FE40] [C006432C] do_path_lookup+0x1a4/0x2b8=0A[ 69.213924] [=
C024FE70] [C006452C] __path_lookup_intent_open+0x58/0xb8=0A[ 69.213971] [=
C024FEA0] [C0064F14] open_namei+0x70/0x6dc=0A[ 69.214015] [C024FEE0] [C00=
519E4] do_filp_open+0x30/0x78=0A[ 69.214056] [C024FF50] [C0051E04] do_sys=
_open+0x70/0x10c=0A[ 69.214095] [C024FF80] [C0002618] init+0x274/0x2e0=0A=
[ 69.214137] [C024FFF0] [C00051FC] kernel_thread+0x44/0x60=0A[ 117.44526=
1] Buffer I/O error on device ram0, logical block 5010=0A[ 119.033233] att=
empt to access beyond end of device=0A[ 120.322015] ram0: rw=3D0, want=3D1=
0018, limit=3D8192=0A[ 121.518738] Buffer I/O error on device ram0, logica=
l block 5008=0A[ 123.106686] attempt to access beyond end of device=0A[ 1=
24.395468] ram0: rw=3D0, want=3D10020, limit=3D8192=0A[ 125.592200] Buffer=
I/O error on device ram0, logical block 5009=0A[ 127.180152] attempt to a=
ccess beyond end of device=0A[ 128.468929] ram0: rw=3D0, want=3D10022, lim=
it=3D8192=0A[ 129.665650] Buffer I/O error on device ram0, logical block 5=
010=0A[ 131.253675] attempt to access beyond end of device=0A[ 132.542475=
] ram0: rw=3D0, want=3D100=0A=0A
^ permalink raw reply [flat|nested] 2+ messages in thread* xapp902 with 2.6.17 -- uartlite & ramdisk problems
@ 2006-10-23 22:32 robert corley
0 siblings, 0 replies; 2+ messages in thread
From: robert corley @ 2006-10-23 22:32 UTC (permalink / raw)
To: linux linuxppc-embedded
All;=0A=0AAs the below shows, the ramdisk problem has been circumvented by =
use of the cmdline option ramdisk_size=3D4660000.=0A=0AStill experience ter=
ribly slow uart. Can anyone quickly point me to the appropriate interrupt =
components for the uartlite et al?=0A=0ASome other questions:=0A=0A1. Are=
interrupts obtained via the platform_get_resource() call?=0A2. Are alloc=
ated interrupts issued starting at 0?=0A3. Is there a correlation betwee=
n the xparameters_ml403.h entries below and the interrupt issued in 1, abov=
e?=0A=0A#define XPAR_PLB_TEMAC_0_IP2INTC_IRPT_MASK 0X000001=0A#defi=
ne XPAR_OPB_INTC_0_PLB_TEMAC_0_IP2INTC_IRPT_INTR 0=0A#define XPAR_XUL_U=
ART_INTERRUPT_MASK 0X000002=0A#define XPAR_OPB_INTC_0_XUL_UART_=
INTERRUPT_INTR 1=0A=0A#define XPAR_INTC_0_TEMAC_0_VEC_ID XPAR_OPB_I=
NTC_0_PLB_TEMAC_0_IP2INTC_IRPT_INTR=0A#define XPAR_INTC_0_UARTLITE_0_VEC_ID=
XPAR_OPB_INTC_0_XUL_UART_INTERRUPT_INTR=0A=0AThanks in advance for any=
ones help.=0A=0A-cy=0A=0A=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=0A[ 0.000000] Linux version 2.6.17.1 (rdcorle@athena) (gcc version 3.4.=
2) #4 Mon Oct 23 19:47:51 UTC 2006=0A[ 0.000000] Xilinx ML403 Reference =
System (Virtex-4 FX)=0A[ 0.000000] Built 1 zonelists=0A[ 0.000000] Ke=
rnel command line: console=3DttyUL0 single ip=3Doff ramdisk_size=3D4660000 =
root=3D/dev/ram rw=0A[ 0.000000] Xilinx INTC #0 at 0xD1000FC0 mapped to =
0xFDFFFFC0=0A[ 0.000000] PID hash table entries: 512 (order: 9, 2048 byt=
es)=0A[ 0.000151] Console: colour dummy device 80x25=0A[ 0.000560] De=
ntry cache hash table entries: 8192 (order: 3, 32768 bytes)=0A[ 0.001270=
] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)=0A[ 0.013=
923] Memory: 58572k available (1348k kernel code, 344k data, 80k init, 0k h=
ighmem)=0A[ 0.200437] Mount-cache hash table entries: 512=0A[ 0.20311=
9] checking if image is initramfs...it isn't (no cpio magic); looks like an=
initrd=0A[ 2.505388] Freeing initrd memory: 4549k freed=0A[ 2.509461=
] NET: Registered protocol family 16=0A[ 2.518975] NET: Registered proto=
col family 2=0A[ 2.583987] IP route cache hash table entries: 512 (order=
: -1, 2048 bytes)=0A[ 2.584462] TCP established hash table entries: 2048=
(order: 3, 32768 bytes)=0A[ 2.584931] TCP bind hash table entries: 1024=
(order: 2, 20480 bytes)=0A[ 2.585217] TCP: Hash tables configured (esta=
blished 2048 bind 1024)=0A[ 2.585251] TCP reno registered=0A[ 2.59163=
8] io scheduler noop registered=0A[ 2.591747] io scheduler anticipatory =
registered (default)=0A[ 2.591902] io scheduler deadline registered=0A[ =
2.592039] io scheduler cfq registered=0A[ 2.637280] serial irq #1 obt=
ained from platform=0A[ 2.637397] uartlite.0: ttyUL0 at MMIO 0xa0000000 =
(irq =3D 1) is a uartlite=0A[ 42.667249] RAMDISK driver initialized: 16 R=
AM disks of 4660000K size 1024 blocksize=0A[ 44.738763] eth%d: XTemac usi=
ng sgDMA mode.=0A[ 45.866885] eth%d: XTemac buffer_descriptor_space: phy:=
0xbb8000, virt: 0xff100000, size: 0x5000=0A[ 48.220095] eth0: Xilinx TEM=
AC #0 at 0x60000000 mapped to 0xC5008000, irq=3D0=0A[ 50.084940] mice: PS=
/2 mouse device common for all mice=0A[ 51.489111] TCP bic registered=0A[=
52.319241] RAMDISK: Compressed image found at block 0=0A[ 56.598970] V=
FS: Mounted root (ext2 filesystem).=0A[ 57.842088] Freeing unused kernel =
memory: 80k init=0A=0A=0ABusyBox v1.00-pre9 (2004.04.18-19s# =0A=0A=0A
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