From: hpa <hpa>
Date: Mon, 8 Dec 2003 21:17:08 +0000 (+0000)
Subject: More shuffling to avoid RBFG bug now when we know the memory range
X-Git-Tag: syslinux-3.11~484
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e7d427ff062f5844b36f3d029020ab06ed71d090;p=platform%2Fupstream%2Fsyslinux.git

More shuffling to avoid RBFG bug now when we know the memory range
overwritten.
---

diff --git a/pxelinux.asm b/pxelinux.asm
index d2bfe32..03864b5 100644
--- a/pxelinux.asm
+++ b/pxelinux.asm
@@ -214,12 +214,20 @@ KbdMap		resb 256		; Keyboard map
 PathPrefix	resb 256		; Path prefix derived from the above
 BootFile	resb 256		; Boot file from DHCP packet
 ConfigName	resb 256		; Configuration file from DHCP option
+FKeyName	resb 10*FILENAME_MAX	; File names for F-key help
+		alignb FILENAME_MAX
+KernelName      resb FILENAME_MAX       ; Mangled name for kernel
+KernelCName     resb FILENAME_MAX	; Unmangled kernel name
+InitRDCName     resb FILENAME_MAX       ; Unmangled initrd name
+MNameBuf	resb FILENAME_MAX
+InitRD		resb FILENAME_MAX
 
-; Warning here: RBFG build 22 seems to randomly overwrite memory location
-; 0x5700.  Not sure why yet.  Consider that if these are realigned.
+; Warning here: RBFG build 22 randomly overwrites memory location
+; [0x5680,0x576c), possibly more.  It seems that it gets confused and
+; screws up the pointer to its own internal packet buffer and starts
+; writing a received ARP packet into low memory.
 
-		absolute 5800h
-FKeyName	resb 10*FILENAME_MAX	; File names for F-key help
+		absolute 6000h
 NumBuf		resb 15			; Buffer to load number
 NumBufEnd	resb 1			; Last byte in NumBuf
 DotQuadBuf	resb 16			; Buffer for dotted-quad IP address
@@ -228,12 +236,6 @@ MACLen		resb 1			; MAC address len
 MACType		resb 1			; MAC address type
 MAC		resb 16			; Actual MAC address
 MACStr		resb 3*17		; MAC address as a string
-		alignb 32
-KernelName      resb FILENAME_MAX       ; Mangled name for kernel
-KernelCName     resb FILENAME_MAX	; Unmangled kernel name
-InitRDCName     resb FILENAME_MAX       ; Unmangled initrd name
-MNameBuf	resb FILENAME_MAX
-InitRD		resb FILENAME_MAX
 PartInfo	resb 16			; Partition table entry
 E820Buf		resd 5			; INT 15:E820 data buffer
 HiLoadAddr      resd 1			; Address pointer for high load loop