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stosq
2002 Oct 22
0
[Fwd: SysLinux Bug]
...Tran and I am a software developer at Broadcom
Corporation. Some of our customers found a problem where SysLinux
locks up when it tries to boot/install from the network via our
PXE code. I found that there is a bug in your code which corrupts
the UNDI code segment.
You used instruction "rep stosxx" to clear SysLinux's variables
when ES is still pointing to UNDI code segment. My fix
is denoted by [KTT].
File : pxelinux.asm
* Bug#1
; Wipe the F-key area
mov al,NULLFILE
mov di,FKeyName
mov cx,10*(1 << FILENAME_MAX_LG2)
[KTT] push es
[KTT] push ds
[KTT]...