Re: [PATCH 5/6] Have ia64 use add_active_range() and free_area_init_nodes
From: Andrew Morton <hidden>
Date: 2006-05-15 03:35:42
Also in:
linux-mm, lkml
Mel Gorman [off-list ref] wrote:
Size zones and holes in an architecture independent manner for ia64.
This one makes my ia64 die very early in boot. The trace is pretty useless. config at http://www.zip.com.au/~akpm/linux/patches/stuff/config-ia64 EFI v1.10 by INTEL: SALsystab=0x3fe4c8c0 ACPI=0x3ff84000 ACPI 2.0=0x3ff83000 MP0 Early serial console at I/O port 0x2f8 (options '9600n8') SAL 3.1: Intel Corp SR870BN4 vers0 SAL Platform features: BusLock IRQ_Redirection SAL: AP wakeup using external interrupt vector 0xf0 No logical to physical processor mapping available iosapic_system_init: Disabling PC-AT compatible 8259 interrupts ACPI: Local APIC address c0000000fee00000 PLATFORM int CPEI (0x3): GSI 22 (level, low) -> CPU 0 (0xc618) vector 30 register_intr: changing vector 39 from IO-SAPIC-edge to IO-SAPIC-level 4 CPUs available, 4 CPUs total MCA related initialization done node 0 zone DMA missaligned start pfn, enable UNALIGNED_ZONE_BOUNDRIES node 0 zone DMA32 missaligned start pfn, enable UNALIGNED_ZONE_BOUNDRIES node 0 zone Normal missaligned start pfn, enable UNALIGNED_ZONE_BOUNDRIES node 0 zone HighMem missaligned start pfn, enable UNALIGNED_ZONE_BOUNDRIES SMP: Allowing 4 CPUs, 0 hotplug CPUs Built 1 zonelists Kernel command line: BOOT_IMAGE=scsi0:\EFI\redhat\vmlinuz-2.6.17-rc4-mm1 root=/o PID hash table entries: 4096 (order: 12, 32768 bytes) Console: colour VGA+ 80x25 Dentry cache hash table entries: 131072 (order: 6, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 5, 524288 bytes) Placing software IO TLB between 0x4a30000 - 0x8a30000 Unable to handle kernel NULL pointer dereference (address 0000000000000008) swapper[0]: Oops 8813272891392 [1] Modules linked in: Pid: 0, CPU 0, comm: swapper psr : 00001010084a6010 ifs : 800000000000060f ip : [<a0000001000e6750>] Notd ip is at __free_pages_ok+0x190/0x3c0 unat: 0000000000000000 pfs : 000000000000060f rsc : 0000000000000003 rnat: 0000000000ffffff bsps: 00000000000002f9 pr : 80000000afb5956b ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70433f csd : 0930ffff00090000 ssd : 0930ffff00090000 b0 : a0000001000e6660 b6 : e00000003fe52940 b7 : a000000100790120 f6 : 1003e6db6db6db6db6db7 f7 : 1003e000000000006dec0 f8 : 1003e000000000000fb80 f9 : 1003e000000000006e080 f10 : 1003e000000000000fb40 f11 : 1003e000000000006dec0 r1 : a000000100af2db0 r2 : 0000000000000001 r3 : 0000000000000000 r8 : a0000001008f3d38 r9 : 0000000000004000 r10 : 0000000000370400 r11 : 0000000000004000 r12 : a0000001007b7e10 r13 : a0000001007b0000 r14 : 0000000000000001 r15 : 0000000100000001 r16 : 0000000100000001 r17 : 0000000100000001 r18 : 0000000000001041 r19 : 0000000000000000 r20 : e00000000149df00 r21 : 0000000100000000 r22 : 0000000055555155 r23 : 00000000ffffffff r24 : e00000000149df08 r25 : 1555555555555155 r26 : 0000000000000032 r27 : 0000000000000000 r28 : 0000000000000008 r29 : 0000000000001041 r30 : 0000000000001041 r31 : 0000000000000001 Unable to handle kernel NULL pointer dereference (address 0000000000000000) swapper[0]: Oops 8813272891392 [2] Modules linked in: Pid: 0, CPU 0, comm: swapper psr : 0000101008022018 ifs : 8000000000000287 ip : [<a0000001001236c0>] Notd ip is at kmem_cache_alloc+0x40/0x100 unat: 0000000000000000 pfs : 0000000000000712 rsc : 0000000000000003 rnat: 0000000000000000 bsps: 0000000000000000 pr : 80000000afb59967 ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70033f csd : 0930ffff00090000 ssd : 0930ffff00090000 b0 : a00000010003e450 b6 : a000000100001b50 b7 : a00000010003f320 f6 : 1003e9e3779b97f4a7c16 f7 : 0ffdb8000000000000000 f8 : 1003e000000000000007f f9 : 1003e0000000000000379 f10 : 1003e6db6db6db6db6db7 f11 : 1003e000000000000007f r1 : a000000100af2db0 r2 : 0000000000000000 r3 : 0000000000000000 r8 : 0000000000000000 r9 : 0000000000000000 r10 : a0000001007b0f24 r11 : 0000000000000000 r12 : a0000001007b7280 r13 : a0000001007b0000 r14 : 0000000000000000 r15 : 0000000000000000 r16 : a0000001007b7310 r17 : 0000000000000000 r18 : a0000001007b7478 r19 : 0000000000000000 r20 : 0000000000000000 r21 : 0000000000000018 r22 : 0000000000000000 r23 : 0000000000000000 r24 : 0000000000000000 r25 : a0000001007b7308 r26 : 000000007fffffff r27 : a000000100825520 r28 : a0000001008f3c40 r29 : a000000100816ca8 r30 : 0000000000000018 r31 : 0000000000000018 (gdb) l *0xa0000001000e6750 0xa0000001000e6750 is in __free_pages_ok (mm.h:324). 319 extern void FASTCALL(__page_cache_release(struct page *)); 320 321 static inline int page_count(struct page *page) 322 { 323 if (unlikely(PageCompound(page))) 324 page = (struct page *)page_private(page); 325 return atomic_read(&page->_count); 326 } 327 328 static inline void get_page(struct page *page) Note the misaligned pfns. Andy's (misspelled) CONFIG_UNALIGNED_ZONE_BOUNDRIES patch didn't actually include an update to any Kconfig files. But hacking that in by hand didn't help.