[linux-dvb] Too much memory???

[Laurence Culhane <mycroft@holmes.demon.co.uk>]

Hi,

I've recently started testing 2.5.7x kernels and dvb-kernel with a
NOVA-T PCI in the UK.

I've spent a load of time building and rebuilding kernels because one
moment the "budget" module would load and the next it would seg-fault on
insertion with a BUG error in saa7164_core.c:67.
After two successful runs with 2.5.73 and the CVS of the day (early
July), everything just stopped working.  Everytime I load the modules I
get the error described.
Further investigation suggested that this may be due to the amount of
memory I have installed on this box (recently increased to 1.2GB).

If I specify `mem="900M"' when booting - limiting the available memory
to less than 1GB - I can install the dvb modules.

If I don't - this is what I get....can anyone help?

Laurence
_______________________________________
Jul 12 17:41:53 holmes kernel: saa7146: register extension 'budget dvb'.
Jul 12 17:41:53 holmes kernel: saa7146: found saa7146 @ mem f8c37000
(revision 1, irq 17) (0x13c2,0x1005).
Jul 12 17:41:53 holmes kernel: DVB: registering new adapter
(TT-Budget/WinTV-NOVA-T  PCI).
Jul 12 17:41:53 holmes kernel: ------------[ cut here ]------------
Jul 12 17:41:53 holmes kernel: kernel BUG at
drivers/media/common/saa7146_core.c:67!
Jul 12 17:41:53 holmes kernel: invalid operand: 0000 [#1]
Jul 12 17:41:53 holmes kernel: CPU:    0
Jul 12 17:41:53 holmes kernel: EIP:   
0060:[_end+947935683/1069304988]    Not tainted
Jul 12 17:41:53 holmes kernel: EIP:    0060:[<f8c3ed27>]    Not tainted
Jul 12 17:41:53 holmes kernel: EFLAGS: 00010206
Jul 12 17:41:53 holmes kernel: EIP is at vmalloc_to_sg+0x77/0xb0
[saa7146]
Jul 12 17:41:53 holmes kernel: eax: 02000100   ebx: f7984c00   ecx:
f6d0e53c   edx: c1965460
Jul 12 17:41:53 holmes kernel: esi: f8d4f000   edi: 00000000   ebp:
f6241dc0   esp: f6241da8
Jul 12 17:41:53 holmes kernel: ds: 007b   es: 007b   ss: 0068
Jul 12 17:41:53 holmes kernel: Process modprobe (pid: 1792,
threadinfo=f6240000 task=f6294d00)
Jul 12 17:41:53 holmes kernel: Stack: f8d4f000 000000d0 000002f0
f623e000 0000002f f8d4f000 f6241de4 f8c3ed91 
Jul 12 17:41:53 holmes kernel:        f8d4f000 0000002f f8d39090
f66c44a0 f623e000 f63dfe00 f623f7e8 f6241e10 
Jul 12 17:41:53 holmes kernel:        f8c4f70d c1ae5400 0002f000
f623f538 00000000 f8c52ee0 00000000 f623e000 
Jul 12 17:41:53 holmes kernel: Call Trace:
Jul 12 17:41:53 holmes kernel:  [_end+947935789/1069304988]
saa7146_vmalloc_build_pgtable+0x31/0xd0 [saa7146]
Jul 12 17:41:53 holmes kernel:  [<f8c3ed91>]
saa7146_vmalloc_build_pgtable+0x31/0xd0 [saa7146]
Jul 12 17:41:53 holmes kernel:  [_end+948960556/1069304988]
dvb_register_i2c_bus+0x90/0xc0 [dvb_core]
Jul 12 17:41:53 holmes kernel:  [<f8d39090>]
dvb_register_i2c_bus+0x90/0xc0 [dvb_core]
Jul 12 17:41:53 holmes kernel:  [_end+948003753/1069304988]
ttpci_budget_init+0x10d/0x210 [budget_core]
Jul 12 17:41:53 holmes kernel:  [<f8c4f70d>]
ttpci_budget_init+0x10d/0x210 [budget_core]
Jul 12 17:41:53 holmes kernel:  [_end+948015370/1069304988]
budget_attach+0x4e/0xe0 [dvb_ttpci_budget]
Jul 12 17:41:53 holmes kernel:  [<f8c5246e>] budget_attach+0x4e/0xe0
[dvb_ttpci_budget]
Jul 12 17:41:53 holmes kernel:  [sprintf+31/48] sprintf+0x1f/0x30
Jul 12 17:41:53 holmes kernel:  [<c0228f6f>] sprintf+0x1f/0x30
Jul 12 17:41:53 holmes kernel:  [_end+947938432/1069304988]
saa7146_init_one+0x534/0x690 [saa7146]
Jul 12 17:41:53 holmes kernel:  [<f8c3f7e4>]
saa7146_init_one+0x534/0x690 [saa7146]
Jul 12 17:41:53 holmes kernel:  [pci_device_probe_static+75/96]
pci_device_probe_static+0x4b/0x60
Jul 12 17:41:53 holmes kernel:  [<c022dccb>]
pci_device_probe_static+0x4b/0x60
Jul 12 17:41:53 holmes kernel:  [__pci_device_probe+60/80]
__pci_device_probe+0x3c/0x50
Jul 12 17:41:53 holmes kernel:  [<c022de2c>]
__pci_device_probe+0x3c/0x50
Jul 12 17:41:53 holmes kernel:  [pci_device_probe+47/80]
pci_device_probe+0x2f/0x50
Jul 12 17:41:53 holmes kernel:  [<c022de6f>] pci_device_probe+0x2f/0x50
Jul 12 17:41:53 holmes kernel:  [bus_match+67/112] bus_match+0x43/0x70
Jul 12 17:41:53 holmes kernel:  [<c026c413>] bus_match+0x43/0x70
Jul 12 17:41:53 holmes kernel:  [driver_attach+93/112]
driver_attach+0x5d/0x70
Jul 12 17:41:53 holmes kernel:  [<c026c52d>] driver_attach+0x5d/0x70
Jul 12 17:41:53 holmes kernel:  [bus_add_driver+164/192]
bus_add_driver+0xa4/0xc0
Jul 12 17:41:53 holmes kernel:  [<c026c814>] bus_add_driver+0xa4/0xc0
Jul 12 17:41:53 holmes kernel:  [driver_register+49/64]
driver_register+0x31/0x40
Jul 12 17:41:53 holmes kernel:  [<c026cc81>] driver_register+0x31/0x40
Jul 12 17:41:53 holmes kernel:  [pci_register_driver+111/160]
pci_register_driver+0x6f/0xa0
Jul 12 17:41:53 holmes kernel:  [<c022e12f>]
pci_register_driver+0x6f/0xa0
Jul 12 17:41:53 holmes kernel:  [_end+947939356/1069304988]
saa7146_register_extension+0xa0/0x100 [saa7146]
Jul 12 17:41:53 holmes kernel:  [<f8c3fb80>]
saa7146_register_extension+0xa0/0x100 [saa7146]
Jul 12 17:41:53 holmes kernel:  [_end+948026542/1069304988]
budget_init+0x12/0x25 [dvb_ttpci_budget]
Jul 12 17:41:53 holmes kernel:  [<f8c55012>] budget_init+0x12/0x25
[dvb_ttpci_budget]
Jul 12 17:41:53 holmes kernel:  [sys_init_module+330/672]
sys_init_module+0x14a/0x2a0
Jul 12 17:41:53 holmes kernel:  [<c0131d8a>] sys_init_module+0x14a/0x2a0
Jul 12 17:41:53 holmes kernel:  [syscall_call+7/11] syscall_call+0x7/0xb
Jul 12 17:41:53 holmes kernel:  [<c010930b>] syscall_call+0x7/0xb
Jul 12 17:41:53 holmes kernel: 
Jul 12 17:41:53 holmes kernel: Code: 0f 0b 43 00 60 01 c4 f8 89 f8 81 c6
00 10 00 00 47 c1 e0 04 
Jul 12 17:42:14 holmes shutdown: shutting down for system reboot





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