Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
kernel-fxtec-pro1x/arch/x86/kernel
History
Yinghai Lu f62f1fc9ef x86: reserve dma32 early for gart 
a system with 256 GB of RAM, when NUMA is disabled crashes the
following way:

Your BIOS doesn't leave a aperture memory hole
Please enable the IOMMU option in the BIOS setup
This costs you 64 MB of RAM
Cannot allocate aperture memory hole (ffff8101c0000000,65536K)
Kernel panic - not syncing: Not enough memory for aperture
Pid: 0, comm: swapper Not tainted 2.6.25-rc4-x86-latest.git #33

Call Trace:
 [<ffffffff84037c62>] panic+0xb2/0x190
 [<ffffffff840381fc>] ? release_console_sem+0x7c/0x250
 [<ffffffff847b1628>] ? __alloc_bootmem_nopanic+0x48/0x90
 [<ffffffff847b0ac9>] ? free_bootmem+0x29/0x50
 [<ffffffff847ac1f7>] gart_iommu_hole_init+0x5e7/0x680
 [<ffffffff847b255b>] ? alloc_large_system_hash+0x16b/0x310
 [<ffffffff84506a2f>] ? _etext+0x0/0x1
 [<ffffffff847a2e8c>] pci_iommu_alloc+0x1c/0x40
 [<ffffffff847ac795>] mem_init+0x45/0x1a0
 [<ffffffff8479ff35>] start_kernel+0x295/0x380
 [<ffffffff8479f1c2>] _sinittext+0x1c2/0x230

the root cause is : memmap PMD is too big,
[ffffe200e0600000-ffffe200e07fffff] PMD ->ffff81383c000000 on node 0
almost near 4G..., and vmemmap_alloc_block will use up the ram under 4G.

solution will be:
1. make memmap allocation get memory above 4G...
2. reserve some dma32 range early before we try to set up memmap for all.
and release that before pci_iommu_alloc, so gart or swiotlb could get some
range under 4g limit for sure.

the patch is using method 2.
because method1 may need more code to handle SPARSEMEM and SPASEMEM_VMEMMAP

will get
Your BIOS doesn't leave a aperture memory hole
Please enable the IOMMU option in the BIOS setup
This costs you 64 MB of RAM
Mapping aperture over 65536 KB of RAM @ 4000000
Memory: 264245736k/268959744k available (8484k kernel code, 4187464k reserved, 4004k data, 724k init)

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-03-21 17:06:15 +01:00
..
acpi PCI: don't load acpi_php when acpi is disabled 2008-02-21 15:34:37 -08:00
cpu [CPUFREQ] Remove debugging message from e_powersaver 2008-03-05 14:45:31 -05:00
.gitignore
alternative.c x86: fix up alternatives with lockdep enabled 2008-01-30 13:33:24 +01:00
aperture_64.c x86: change aper valid checking sequence 2008-01-30 13:33:39 +01:00
apic_32.c x86: don't disable the APIC if it hasn't been mapped yet 2008-01-30 13:33:17 +01:00
apic_64.c x86: change bios_cpu_apicid to percpu data variable fixup 2008-01-30 13:33:21 +01:00
apm_32.c x86: isolate PIC/PIT in/out calls 2008-01-30 13:33:14 +01:00
asm-offsets.c
asm-offsets_32.c lguest: fix build breakage 2008-02-26 12:55:49 +01:00
asm-offsets_64.c x86: add asm_offset PARAVIRT constants 2008-01-30 13:33:19 +01:00
audit_64.c
bootflag.c x86: coding style cleanup for kernel/bootflag.c 2008-01-30 13:32:31 +01:00
bugs_64.c x86, 32-bit: trim memory not covered by wb mtrrs 2008-01-30 13:33:18 +01:00
cpuid.c x86: cpuid, msr: use inode mutex instead of big kernel lock 2008-02-04 16:47:59 +01:00
crash.c
crash_dump_32.c
crash_dump_64.c
doublefault_32.c x86: unify tss_struct 2008-01-30 13:31:31 +01:00
ds.c x86: fix small sparse warning 2008-01-31 22:05:47 +01:00
e820_32.c x86_32: trim memory by updating e820 2008-01-30 13:33:32 +01:00
e820_64.c x86_64: make bootmap_start page align v6 2008-02-01 17:49:41 +01:00
early-quirks.c x86: fix section mismatch warning in early-quirks.c 2008-01-30 13:33:37 +01:00
early_printk.c x86: make early_console static in early_printk.c 2008-02-01 17:49:42 +01:00
efi.c x86: sparse warning in efi.c 2008-02-19 16:18:28 +01:00
efi_32.c x86: sparse error in efi_32.c 2008-02-19 16:18:28 +01:00
efi_64.c x86: EFI runtime code mapping enhancement 2008-02-13 16:20:35 +01:00
efi_stub_32.S
efi_stub_64.S x86: EFI runtime service support 2008-01-30 13:31:19 +01:00
entry_32.S x86: don't make irq_return global 2008-02-19 16:18:29 +01:00
entry_64.S x86: fix execve with -fstack-protect 2008-02-26 12:55:57 +01:00
genapic_64.c x86: cleanup x86_cpu_to_apicid references 2008-01-30 13:33:11 +01:00
genapic_flat_64.c
geode_32.c x86: GEODE: MFGPT: Use "just-in-time" detection for the MFGPT timers 2008-02-09 23:24:08 +01:00
head64.c x86: zap invalid and unused pmds in early boot 2008-02-18 20:54:14 +01:00
head_32.S x86: don't make swapper_pg_pmd global 2008-02-26 12:55:58 +01:00
head_64.S x86: rename KERNEL_TEXT_SIZE => KERNEL_IMAGE_SIZE 2008-02-26 12:55:56 +01:00
hpet.c x86: hpet fix docbook comment 2008-02-26 12:55:50 +01:00
i386_ksyms_32.c
i387.c x86: fix merge mistake in i387.c 2008-03-07 16:39:14 +01:00
i8237.c
i8253.c x86: pit_clockevent can be static 2008-02-13 16:20:35 +01:00
i8259_32.c x86: i8259A: remove redundant irq_descinitialization 2008-02-19 16:18:34 +01:00
i8259_64.c x86: provide a native_init_IRQ function on 64-bit 2008-01-30 13:33:19 +01:00
init_task.c x86: delay the export removal of init_mm 2008-02-29 18:55:42 +01:00
io_apic_32.c arch/x86/kernel/io_apic_{64,32}.c: use time_before 2008-01-30 13:32:19 +01:00
io_apic_64.c arch/x86/kernel/io_apic_{64,32}.c: use time_before 2008-01-30 13:32:19 +01:00
io_delay.c x86: unexport io_delay_type 2008-02-19 16:18:29 +01:00
ioport.c x86: refactor ioport unification 2008-01-30 13:33:10 +01:00
irq_32.c x86: remove all definitions with fastcall 2008-01-30 13:31:17 +01:00
irq_64.c
k8.c
kdebugfs.c x86 boot : export boot_params via debugfs for debugging 2008-01-30 13:32:51 +01:00
kprobes.c x86, kprobes: remove sparse warnings from x86 2008-02-19 16:18:28 +01:00
ldt.c x86: cleanup - eliminate numbers in LDT allocation code 2008-02-04 16:48:03 +01:00
machine_kexec_32.c vmcoreinfo: fix the configuration dependencies 2008-02-07 08:42:25 -08:00
machine_kexec_64.c vmcoreinfo: fix the configuration dependencies 2008-02-07 08:42:25 -08:00
Makefile x86: exclude vsyscall files from stackprotect 2008-02-19 16:18:32 +01:00
mca_32.c
mfgpt_32.c x86: GEODE: MFGPT: fix typo in printk in mfgpt_timer_setup 2008-02-09 23:24:08 +01:00
microcode.c x86: fix section mismatch warnings when referencing notifiers 2008-02-01 17:49:42 +01:00
module_32.c
module_64.c
mpparse_32.c Introduce flags for reserve_bootmem() 2008-02-07 08:42:25 -08:00
mpparse_64.c x86: fix section mismatch warning in acpi/boot.c 2008-01-30 13:33:37 +01:00
msr.c x86: cpuid, msr: use inode mutex instead of big kernel lock 2008-02-04 16:47:59 +01:00
nmi_32.c x86: fix compile warning building without CONFIG_SYSCTL 2008-02-19 16:18:29 +01:00
nmi_64.c x86: fix compile warning building without CONFIG_SYSCTL 2008-02-19 16:18:29 +01:00
numaq_32.c x86: convert TSC disabling to generic cpuid disable bitmap 2008-01-30 13:33:20 +01:00
paravirt.c x86: fill in missing pv_mmu_ops entries for PAGETABLE_LEVELS >= 3 2008-01-30 13:33:20 +01:00
paravirt_patch_32.c x86: move patching code to arch-specific file. 2008-01-30 13:32:10 +01:00
paravirt_patch_64.c x86: add stringify header 2008-01-30 13:33:19 +01:00
pci-calgary_64.c iommu sg: x86: convert calgary IOMMU to use the IOMMU helper 2008-02-05 09:44:11 -08:00
pci-dma_32.c
pci-dma_64.c x86: reserve dma32 early for gart 2008-03-21 17:06:15 +01:00
pci-gart_64.c x86: fix gart_iommu_init() 2008-02-14 23:30:20 +01:00
pci-nommu_64.c
pci-swiotlb_64.c
pcspeaker.c
pmtimer_64.c
process_32.c x86: disable BTS ptrace extensions for now 2008-02-29 18:55:42 +01:00
process_64.c x86: disable BTS ptrace extensions for now 2008-02-29 18:55:42 +01:00
ptrace.c x86: ia32 syscall restart fix 2008-03-11 17:11:54 +01:00
quirks.c Use proper abstractions in quirk_intel_irqbalance 2008-02-11 08:15:03 -08:00
reboot.c x86: add the DFF (Desktop Form Factor) Dell Optiplex 745 to the reboot errata list 2008-03-21 17:06:15 +01:00
reboot_fixups_32.c x86: add the RDC machine specific reboot fixup 2008-01-30 13:33:36 +01:00
relocate_kernel_32.S
relocate_kernel_64.S
rtc.c x86: fix sched_clock() 2008-01-30 13:32:40 +01:00
scx200_32.c x86: fix sparse warning in kernel/scx200_32.c 2008-01-31 22:05:45 +01:00
setup64.c x86: tight online check in setup_per_cpu_areas 2008-03-21 17:06:15 +01:00
setup_32.c remove mca-pentium 2008-02-19 16:18:28 +01:00
setup_64.c x86: reserve dma32 early for gart 2008-03-21 17:06:15 +01:00
sigframe_32.h
signal_32.c x86: clear DF before calling signal handler 2008-03-07 16:39:14 +01:00
signal_64.c x86: ia32 syscall restart fix 2008-03-11 17:11:54 +01:00
smp_32.c x86: voluntary leave_mm before entering ACPI C3 2008-01-30 13:32:01 +01:00
smp_64.c x86: voluntary leave_mm before entering ACPI C3 2008-01-30 13:32:01 +01:00
smpboot_32.c calibrate_delay() must be __cpuinit 2008-02-06 10:41:08 -08:00
smpboot_64.c x86: make c_idle.work have a static address. 2008-02-26 12:56:02 +01:00
smpcommon_32.c x86: change write_gdt_entry signature. 2008-01-30 13:31:13 +01:00
srat_32.c Merge branches 'release', 'bugzilla-6217', 'bugzilla-6629', 'bugzilla-6933', 'bugzilla-7186', 'bugzilla-8269', 'bugzilla-8570', 'bugzilla-9139', 'bugzilla-9277', 'bugzilla-9341', 'bugzilla-9444', 'bugzilla-9614', 'bugzilla-9643' and 'bugzilla-9644' into release 2008-02-07 03:09:43 -05:00
stacktrace.c x86: don't save unreliable stack trace entries 2008-02-26 12:55:58 +01:00
step.c x86: fix typo in step.c 2008-03-07 16:39:14 +01:00
summit_32.c
sys_i386_32.c
sys_x86_64.c
syscall_64.c
syscall_table_32.S timerfd: wire the new timerfd API to the x86 family 2008-02-05 09:44:07 -08:00
tce_64.c
test_nx.c x86: mark the .rodata section also NX 2008-02-06 22:39:45 +01:00
test_rodata.c x86: include proper prototypes for rodata_test 2008-02-14 23:30:20 +01:00
time_32.c
time_64.c time: fix typo in comments 2008-02-08 09:22:29 -08:00
tls.c x86: tls prevent_tail_call 2008-02-29 18:55:39 +01:00
tls.h x86: x86 user_regset TLS 2008-01-30 13:31:52 +01:00
topology.c x86: fix section mismatch warning in topology.c:arch_register_cpu 2008-02-19 16:18:30 +01:00
trampoline_32.S x86: remove misleading comments in trampoline_*.S 2008-02-04 16:48:01 +01:00
trampoline_64.S x86: remove misleading comments in trampoline_*.S 2008-02-04 16:48:01 +01:00
traps_32.c x86: fix sparse error in traps_32.c 2008-02-06 22:39:44 +01:00
traps_64.c x86: fix "BUG: sleeping function called from invalid context" in print_vma_addr() 2008-02-14 23:30:19 +01:00
tsc_32.c x86: notsc is ignored on common configurations 2008-02-26 12:55:54 +01:00
tsc_64.c x86: export check_tsc_unstable 2008-01-30 13:33:24 +01:00
tsc_sync.c x86: add warning to check_tsc_warp() 2008-01-30 13:33:24 +01:00
verify_cpu_64.S
vm86_32.c arch/x86/: spelling fixes 2008-01-30 13:31:42 +01:00
vmi_32.c x86: VMI fix 2008-02-04 16:47:54 +01:00
vmiclock_32.c x86: isolate PIC/PIT in/out calls 2008-01-30 13:33:14 +01:00
vmlinux.lds.S
vmlinux_32.lds.S x86: lds - Use PAGE_SIZE instead of numeric constant 2008-02-19 16:18:33 +01:00
vmlinux_64.lds.S x86: lds - Use THREAD_SIZE instead of numeric constant 2008-02-19 16:18:34 +01:00
vsmp_64.c
vsyscall_64.c x86: restore vsyscall64 prochandler 2008-02-29 18:55:39 +01:00
x8664_ksyms_64.c x86: export cpu_gdt_descr 2008-01-30 13:31:10 +01:00