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modprobe: page allocation failure. order:6, mode:0x8020
Pid: 31772, comm: modprobe Tainted: G W 2.6.28-LinHES #1
Call Trace:
[<c016e575>] __alloc_pages_internal+0x375/0x470
[<c0108cdb>] dma_generic_alloc_coherent+0x6b/0xd0
[<f86a32f2>] flexcop_dma_allocate+0xf2/0x130 [b2c2_flexcop]
[<c0108c70>] dma_generic_alloc_coherent+0x0/0xd0
[<f84ff63b>] flexcop_pci_probe+0x17b/0x2d0 [b2c2_flexcop_pci]
[<c0255dc6>] pci_device_probe+0x56/0x80
[<c02bab86>] driver_probe_device+0x86/0x1a0
[<c011ff35>] default_spin_lock_flags+0x5/0x10
[<c040e6be>] _spin_lock_irqsave+0x3e/0x60
[<c02bad29>] __driver_attach+0x89/0x90
[<c0255d10>] pci_device_remove+0x0/0x40
[<c02ba4b4>] bus_for_each_dev+0x44/0x70
[<c0255d10>] pci_device_remove+0x0/0x40
[<c02baa16>] driver_attach+0x16/0x20
[<c02baca0>] __driver_attach+0x0/0x90
[<c02b9e47>] bus_add_driver+0x1a7/0x220
[<c0255d10>] pci_device_remove+0x0/0x40
[<c02baebc>] driver_register+0x5c/0x130
[<f802f000>] flexcop_pci_module_init+0x0/0x14 [b2c2_flexcop_pci]
[<c0256017>] __pci_register_driver+0x47/0x90
[<f802f000>] flexcop_pci_module_init+0x0/0x14 [b2c2_flexcop_pci]
[<c0101126>] do_one_initcall+0x36/0x1c0
[<c0182730>] __vunmap+0xb0/0xe0
[<c0158487>] load_module+0x1577/0x1950
[<c0250430>] pci_bus_read_config_byte+0x0/0x80
[<c01589ab>] sys_init_module+0x8b/0x1b0
[<c0103f13>] sysenter_do_call+0x12/0x33
[<c0400000>] tulip_parse_eeprom+0x29d/0x59d

Author:	mihanson [ Wed Jan 27, 2010 3:41 pm ]
Post subject:	Modprobe: Page Allocation Errors
If you ever run into a page allocation error like this: Code: modprobe: page allocation failure. order:6, mode:0x8020 Pid: 31772, comm: modprobe Tainted: G W 2.6.28-LinHES #1 Call Trace: [<c016e575>] __alloc_pages_internal+0x375/0x470 [<c0108cdb>] dma_generic_alloc_coherent+0x6b/0xd0 [<f86a32f2>] flexcop_dma_allocate+0xf2/0x130 [b2c2_flexcop] [<c0108c70>] dma_generic_alloc_coherent+0x0/0xd0 [<f84ff63b>] flexcop_pci_probe+0x17b/0x2d0 [b2c2_flexcop_pci] [<c0255dc6>] pci_device_probe+0x56/0x80 [<c02bab86>] driver_probe_device+0x86/0x1a0 [<c011ff35>] default_spin_lock_flags+0x5/0x10 [<c040e6be>] _spin_lock_irqsave+0x3e/0x60 [<c02bad29>] __driver_attach+0x89/0x90 [<c0255d10>] pci_device_remove+0x0/0x40 [<c02ba4b4>] bus_for_each_dev+0x44/0x70 [<c0255d10>] pci_device_remove+0x0/0x40 [<c02baa16>] driver_attach+0x16/0x20 [<c02baca0>] __driver_attach+0x0/0x90 [<c02b9e47>] bus_add_driver+0x1a7/0x220 [<c0255d10>] pci_device_remove+0x0/0x40 [<c02baebc>] driver_register+0x5c/0x130 [<f802f000>] flexcop_pci_module_init+0x0/0x14 [b2c2_flexcop_pci] [<c0256017>] __pci_register_driver+0x47/0x90 [<f802f000>] flexcop_pci_module_init+0x0/0x14 [b2c2_flexcop_pci] [<c0101126>] do_one_initcall+0x36/0x1c0 [<c0182730>] __vunmap+0xb0/0xe0 [<c0158487>] load_module+0x1577/0x1950 [<c0250430>] pci_bus_read_config_byte+0x0/0x80 [<c01589ab>] sys_init_module+0x8b/0x1b0 [<c0103f13>] sysenter_do_call+0x12/0x33 [<c0400000>] tulip_parse_eeprom+0x29d/0x59d when modprobing modules, there is an easy fix that may help. Simply allocate more memory as user root: Code: /bin/echo 16384 > /proc/sys/vm/min_free_kbytes to ensure this setting sticks across reboots, place it in /etc/runit/1.local. It solved my problem after removing and re-adding some dvb modules. Hat tip to the mythtv-wiki.

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