Yinghai Lu 9198715763 x86: fix overlap between pagetable with bss section ... one early crash on one 8 node 256g machine: Command line: console=uart8250,io,0x3f8,115200n8 initrd=kernel.org/mydisk11_x86_64.gz rw root=/dev/ram0 debug initcall_debug apic=debug acpi.debug_level=0x0000000f pci=routeirq ip=dhcp load_ramdisk=1 ramdisk_size=131072 BOOT_IMAGE=kernel.org/bzImage_2.6.25_k8.1 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009bc00 (usable) BIOS-e820: 000000000009bc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e6000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 00000000dffe0000 (usable) BIOS-e820: 00000000dffe0000 - 00000000dffee000 (ACPI data) BIOS-e820: 00000000dffee000 - 00000000dffff050 (ACPI NVS) BIOS-e820: 00000000dffff050 - 00000000e0000000 (reserved) BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ff700000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000004020000000 (usable) Early serial console at I/O port 0x3f8 (options '115200n8') console [uart0] enabled end_pfn_map = 67239936 Kernel panic - not syncing: Duplicated early reservation d40000-e42000 Pid: 0, comm: swapper Not tainted 2.6.24-smp-g5a514e21-dirty #3 Call Trace: [<ffffffff80221545>] lapic_get_maxlvt+0x0/0x10 [<ffffffff80221657>] clear_local_APIC+0x5/0xcf [<ffffffff80221726>] disable_local_APIC+0x5/0x17 [<ffffffff8021fe16>] smp_send_stop+0x46/0x4c [<ffffffff80235293>] panic+0x94/0x13e [<ffffffff80bc3b03>] sctp_eps_proc_init+0x12/0x34 [<ffffffff80b9f1c5>] reserve_early+0x30/0x6c [<ffffffff80803925>] init_memory_mapping+0x2cd/0x2dc [<ffffffff80b9dc01>] setup_arch+0x21f/0x44e [<ffffffff80b978be>] start_kernel+0x6f/0x2c7 [<ffffffff80b971cc>] _sinittext+0x1cc/0x1d3 it turns out there is overlap between pgtable and bss... in System.map we have ffffffff80d40420 b rsi_table ffffffff80d40620 B krb5_seq_lock ffffffff80d40628 b i.20437 ffffffff80d40630 b xprt_rdma_inline_write_padding ffffffff80d40638 b sunrpc_table_header ffffffff80d40640 b zero ffffffff80d40644 b min_memreg ffffffff80d40648 b rpcrdma_tk_lock_g ffffffff80d40650 B sctp_assocs_id_lock ffffffff80d40658 B proc_net_sctp ffffffff80d40660 B sctp_assocs_id ffffffff80d40680 B sysctl_sctp_mem ffffffff80d40690 B sysctl_sctp_rmem ffffffff80d406a0 B sysctl_sctp_wmem ffffffff80d406b0 b sctp_ctl_socket ffffffff80d406b8 b sctp_pf_inet6_specific ffffffff80d406c0 b sctp_pf_inet_specific ffffffff80d406c8 b sctp_af_v4_specific ffffffff80d406d0 b sctp_af_v6_specific ffffffff80d406d8 b sctp_rand.33270 ffffffff80d406dc b sctp_memory_pressure ffffffff80d406e0 b sctp_sockets_allocated ffffffff80d406e4 b sctp_memory_allocated ffffffff80d406e8 b sctp_sysctl_header ffffffff80d406f0 b zero ffffffff80d406f4 A __bss_stop ffffffff80d406f4 A _end need to round up table_start to PAGE_SIZE. also make the panic more informative. Signed-off-by: Yinghai Lu <yinghai.lu@sun.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2008-01-30 13:34:12 +01:00
..
alpha	remove __attribute_used__	2008-01-28 23:21:18 +01:00
arm	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
avr32	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
blackfin	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
cris	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
frv	Remove references to "make dep"	2008-01-28 23:22:13 +01:00
h8300	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
ia64	percpu: make the asm-generic/percpu.h more "generic"	2008-01-30 13:32:52 +01:00
m32r	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
m68k	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
m68knommu	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
mips	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
parisc	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
powerpc	percpu: use a kconfig variable to signal arch specific percpu setup	2008-01-30 13:32:51 +01:00
ppc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25	2008-01-29 22:54:01 +11:00
s390	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
sh	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
sparc	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
sparc64	percpu: use a kconfig variable to signal arch specific percpu setup	2008-01-30 13:32:51 +01:00
um	UML: remove remaining FASTCALL uses	2008-01-30 13:31:14 +01:00
v850	all archs: consolidate init and exit sections in vmlinux.lds.h	2008-01-28 23:21:17 +01:00
x86	x86: fix overlap between pagetable with bss section	2008-01-30 13:34:12 +01:00
xtensa	Remove references to "make dep"	2008-01-28 23:22:13 +01:00
.gitignore	arch: Ignore arch/i386 and arch/x86_64	2008-01-19 21:29:39 -08:00