diff options
| author | hpa <hpa> | 1998-12-01 17:40:32 +0000 |
|---|---|---|
| committer | hpa <hpa> | 1998-12-01 17:40:32 +0000 |
| commit | 6fb6d76a71464bf7e7780e863e1e9e214ffecd26 (patch) | |
| tree | 9256f9ee51f45b378d8c55a8d559a69f66d64261 | |
| parent | 2d6d3c08b1d135c6a51f4067a8c9d24991bbd46b (diff) | |
| download | syslinux.git-6fb6d76a71464bf7e7780e863e1e9e214ffecd26.tar.gz syslinux.git-6fb6d76a71464bf7e7780e863e1e9e214ffecd26.tar.xz syslinux.git-6fb6d76a71464bf7e7780e863e1e9e214ffecd26.zip | |
Always make the initrd fit under the 0x3f000000 mark imposed by unmodifiedsyslinux-1.41-0x36642a1dsyslinux-1.41
Linux kernels.
| -rw-r--r-- | ldlinux.asm | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/ldlinux.asm b/ldlinux.asm index 25b8f357..8e5d102a 100644 --- a/ldlinux.asm +++ b/ldlinux.asm @@ -27,10 +27,12 @@ ; **************************************************************************** ; -; Some semi-configurable constants... change on your own risk +; Some semi-configurable constants... change on your own risk. Most are imposed +; by the kernel. ; max_cmd_len equ 255 ; Must be odd; 255 is the kernel limit retry_count equ 6 ; How patient are we with the disk? +HIGHMEM_MAX equ 03f000000h ; Highest address for an initrd ; ; Should be updated with every release to avoid bootsector/SYS file mismatch @@ -1861,6 +1863,11 @@ new_kernel: add ax,dx mov [InitRDClust],ax ; Ramdisk clusters mov edx,[HighMemSize] ; End of memory + mov eax,HIGHMEM_MAX ; Limit imposed by kernel + cmp edx,eax + jna memsize_ok + mov edx,eax ; Adjust to fit inside limit +memsize_ok: sub edx,[es:su_ramdisklen] ; Subtract size of ramdisk xor dx,dx ; Round down to 64K boundary mov [InitRDat],edx ; Load address |