Yinghai Lu 3b0fde0fac firmware_map: fix hang with x86/32bit ... Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13484 Peer reported: | The bug is introduced from kernel 2.6.27, if E820 table reserve the memory | above 4G in 32bit OS(BIOS-e820: 00000000fff80000 - 0000000120000000 | (reserved)), system will report Int 6 error and hang up. The bug is caused by | the following code in drivers/firmware/memmap.c, the resource_size_t is 32bit | variable in 32bit OS, the BUG_ON() will be invoked to result in the Int 6 | error. I try the latest 32bit Ubuntu and Fedora distributions, all hit this | bug. |====== |static int firmware_map_add_entry(resource_size_t start, resource_size_t end, | const char *type, | struct firmware_map_entry *entry) and it only happen with CONFIG_PHYS_ADDR_T_64BIT is not set. it turns out we need to pass u64 instead of resource_size_t for that. [akpm@linux-foundation.org: add comment] Reported-and-tested-by: Peer Chen <pchen@nvidia.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: H. Peter Anvin <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-06-16 19:47:28 -07:00
..
dcdbas.c	dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)	2009-04-07 08:31:11 -07:00
dcdbas.h	dcdbas: export functionality for use in other drivers	2009-01-08 08:31:12 -08:00
dell_rbu.c	dell_rbu: use scnprintf() instead of less secure sprintf()	2009-01-17 14:27:18 -08:00
dmi_scan.c	[libata] ahci: Restore SB600 SATA controller 64 bit DMA	2009-06-10 11:05:00 -04:00
dmi-id.c
edd.c
efivars.c
iscsi_ibft_find.c
iscsi_ibft.c	ibft: fix the display of a few fields in the NIC attribute structure in sysfs	2009-05-02 15:36:10 -07:00
Kconfig
Makefile
memmap.c	firmware_map: fix hang with x86/32bit	2009-06-16 19:47:28 -07:00
pcdp.c
pcdp.h