[L4LINUX] Is there a loop in revision 32 ?
Adam Lackorzynski
adam at os.inf.tu-dresden.de
Thu Jul 5 09:57:24 CEST 2007
Hi,
On Wed Jul 04, 2007 at 17:21:33 +0200, Clermont, Nicolas wrote:
> I have updated my l4 repositories yesterday, switching to L4Linux revision
> 32 and tudos revision 127. When booting L4Linux with TCP/IP enabled, it
> blocks after printing "Registered protocol 2". When disabling TCP/IP, it
> blocks after IDE probe. I have observed the same behavior with revision 31,
> but didn't have the time at this time to investigate.
I'm not seeing anything like this in my setup. Can you please post your
L4Linux .config so that I can look over it?
> This time I have tried to find the reason of this loop. I have disabled
> TCP/IP and tried to see where L4Linux hangs. After IDE probe, L4Linux goes
> through wait_for_completion(), which calls schedule(), and then loops as
> need_resched label is always re-invocated. The last thing displayed is the
> creation of the idler thread...
> The problem with TCP/IP support enabled is different but maybe related to
> the same source. the schedule() function is also called, but it completes
> and so schedule. Then the idler thread is created and noting goes on.
>
> I have tried with different configurations, especially with protected I/O
> and unprotected, but I get always the same behavior.
>
> This is the output I get trough the serial line with TCP/IP disabled
> (l4linux also print on serial) :
>
> l4lx | ======> L4Linux 2.6 starting... <========
> l4lx | Linux version 2.6.21-l4 (clermont at L4-dev <mailto:clermont at L4-dev>
> ) (gcc version 3.4.4 (Gentoo
> l4lx : 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)) #59 Tue Jul 3 19:21:07 Local
> tim
> l4lx : e zone must be set--see zic manu
> l4lx | Binary name: vmlinuz26
> l4lx | Kernel command line (5 args): console=ttyLv0 earlyprintk=yes
> mem=128M
> l4lx : root=/dev/hda1 video=l4fb:refreshsleep:200
> l4lx | Image: 00400000 - 00681000 [2564 KiB].
> l4lx | Areas: Text: 00400000 - 005e6000 [1944kB] (a bit longer)
> l4lx | Data: 005e6000 - 005f9f7c [79kB]
> l4lx | Initdata: 005fc000 - 00618260 [112kB]
> l4lx | BSS: 0061a000 - 0067e840 [402kB]
> names | 12.02: server_names_register(12.03 -> "l4lx.tamer")
> l4lx | l4lx_thread_create: Created thread 12.03 (tamer)
> l4lx | Using tamed mode.
> ROOT: Sending all ports (for cli/sti) to task #0d
> l4lx | Got 65536 out of 65536 I/O ports
> names | 12.02: server_names_register(12.04 -> "l4lx.server")
> l4lx | l4lx_thread_create: Created thread 12.04 (server)
> l4lx | main thread will be 12.04
> l4lx | l4env_register_pointer_section: addr = 005e6000 size = 634880
> l4lx | sec-w-init: virt: 0x005e6000 to 0x00680fff [620 KiB]
> l4lx | sec-w-init: Number of physical regions: 1, 634880 Bytes
> l4lx | sec-w-init: 1: Phys: 0x01185000 to 0x01220000, Size: 634880
> l4lx | l4env_linux_startup thread 4.
> l4lx | main thread: received startup message.
> l4lx | Main thread running, waiting...
> l4lx | setup_l4env_memory: Forcing superpages for main memory
> l4lx | Main memory size: 128MB
> l4lx | Got 2048kB of ISA DMA memory.
> l4lx | ISA DMA memory: virt: 0x00800000 to 0x009fffff [2048 KiB]
> l4lx | ISA DMA memory: Number of physical regions: 1, 2097152 Bytes
> l4lx | ISA DMA memory: 1: Phys: 0x0043a000 to 0x0063a000, Size: 2097152
> l4lx | Main memory: virt: 0x00c00000 to 0x08bfffff [131072 KiB]
> l4lx | Main memory: Number of physical regions: 1, 134217728 Bytes
> l4lx | Main memory: 1: Phys: 0x14400000 to 0x1c400000, Size:
> 134217728
> l4lx | Filling lower ptabs...
> l4lx | Done (1883 entries).
> Linux version 2.6.21-l4 (clermont at L4-dev <mailto:clermont at L4-dev> ) (gcc
> version 3.4.4 (Gentoo 3.4.4-r1, s
> sp-3.4.4-1.0, pie-8.7.8)) #59 Tue Jul 3 19:21:07 Local time zone must be
> set--se
> e zic manu
> CPU: Vendor unknown, using generic init.
> CPU: Your system may be unstable.
> dm_phys: 0000000000c00000 - 0000000008c00000 (usable)
> dm_phys: 0000000000800000 - 0000000000a00000 (usable)
> 132MB memory available.
> Zone PFN ranges:
> DMA 0 -> 2560
> Normal 2560 -> 35840
> early_node_map[1] active PFN ranges
> 0: 0 -> 35840
> Allocating PCI resources starting at 10000000 (gap: 00a00000:ff600000)
> Built 1 zonelists. Total pages: 35560
> Kernel command line: console=ttyLv0 earlyprintk=yes mem=128M root=/dev/hda1
> vide
> o=l4fb:refreshsleep:200
> Initializing CPU#0
> PID hash table entries: 1024 (order: 10, 4096 bytes)
> Detected 2800.514 MHz processor.
> Console: colour dummy device 80x25
> l4ser_init_ports
> l4ser: input not enabled!
> Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
> Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
> Memory: 131700k/143360k available (1539k kernel code, 1344k reserved, 484k
> data,
> 112k init, 0k highmem)
> virtual kernel memory layout:
> fixmap : 0xffffc000 - 0xfffff000 ( 12 kB)
> vmalloc : 0x10000000 - 0x18000000 ( 128 MB)
> lowmem : 0x00000000 - 0x08c00000 ( 140 MB)
> .init : 0x005fc000 - 0x00618260 ( 112 kB)
> .data : 0x00580cc4 - 0x005f9f7c ( 484 kB)
> .text : 0x00400000 - 0x00580cc4 (1539 kB)
> l4lx_irq_timer_startup(0)
> names | 12.04: server_names_register(12.05 -> "l4lx.timer.i0")
> l4lx | l4lx_thread_create: Created thread 12.05 (timer.i0)
> timer_irq_thread: Starting timer IRQ thread.
> Calibrating delay using timer specific routine.. 5603.19 BogoMIPS
> (lpj=28015972)
> Mount-cache hash table entries: 512
> Compat vDSO mapped to 0040e000.
> CPU: GenuineIntel Intel(R) Pentium(R) 4 CPU 2.80GHz stepping 09
> NET: Registered protocol family 16
> PCI: Using configuration type 1
> Setting up standard PCI resources
> SCSI subsystem initialized
> PCI: Probing PCI hardware
> PCI quirk: region 0400-047f claimed by ICH4 ACPI/GPIO/TCO
> PCI quirk: region 0480-04bf claimed by ICH4 GPIO
> PCI: Transparent bridge - 0000:00:1e.0
> PCI: Ignore bogus resource 6 [0:0] of 0000:00:02.0
> PCI: Bridge: 0000:00:03.0
> IO window: a000-afff
> MEM window: fa000000-fa0fffff
> PREFETCH window: disabled.
> PCI: Bridge: 0000:00:1e.0
> IO window: b000-bfff
> MEM window: f8000000-f9ffffff
> PREFETCH window: 10000000-100fffff
> io scheduler noop registered
> Time: tsc clocksource has been installed.
> io scheduler anticipatory registered (default)
> io scheduler deadline registered
> io scheduler cfq registered
> __ioremap: Requested region at fa180000 [0x400 Bytes]
> __ioremap: Mapping physaddr fa180000 [0x400 Bytes, fa180000+000400] to
> 08c00000+
> 000000
> l4lx | Starting L4FB via DOpE
> names | 12.04: server_names_register(12.06 -> "l4lx.listener")
> l4dope | SharedMem(alloc): hl.raw=100000, id=a1, size=96000
> l4dope | SharedMem(get_adr): address = 0x200000
> names | 12.04: server_names_register(12.07 -> "l4lx.DOpE refre")
> l4lx | l4lx_thread_create: Created thread 12.07 (DOpE refresher)
> names | 12.04: server_names_register(12.08 -> "l4lx.L4DOpEinpu")
> l4lx | l4lx_thread_create: Created thread 12.08 (L4DOpEinput)
> input: l4input key as /class/input/input0
> input: l4input mouse as /class/input/input1
> l4fb: DOpE framebuffer at 0x08c05000, size 600k
> l4fb: mode is 640x480x16, linelength=1280, pages=0
> l4fb: directcolor: size=0:5:6:5, shift=0:11:5:0
> Console: switching to colour frame buffer device 80x30
> l4fb0: l4fb L4 frame buffer device (refresh: 200ms)
> L4 serial driver
> l4ser_init_ports
> l4ser: input not enabled!
> ttyLv0 at MMIO 0x1 (irq = 0) is a L4
> Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> names | 12.04: server_names_register(12.09 -> "l4lx.Idler")
> l4lx | l4lx_thread_create: Created thread 12.09 (Idler)
> l4dope | SharedMem(alloc): hl.raw=100000, id=aa, size=280000
> l4dope | SharedMem(get_adr): address = 0x800000
>
> Does somebody have a running L4Linux revision 32 ? Is it a known problem, or
> could it be specific to my configuration, etc ... ?
Adam
--
Adam adam at os.inf.tu-dresden.de
Lackorzynski http://os.inf.tu-dresden.de/~adam/
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