On Mon, Sep 23, 2013 at 07:40:26PM +0530, Ashok Kumar wrote: > Date: Mon, 23 Sep 2013 19:40:26 +0530 > From: Ashok Kumar <ashoks@xxxxxxxxxxxx> > To: linux-mips@xxxxxxxxxxxxxx, gerg@xxxxxxxxxxx > cc: ralf@xxxxxxxxxxxxxx, Ashok Kumar <ashoks@xxxxxxxxxxxx> > Subject: [PATCH] MIPS: fix mapstart when using initrd > Content-Type: text/plain > > When initrd is present in the PFN right after the _end, bootmem > bitmap(mapstart) overwrites it. So check for initrd_end in > mapstart calculation. > > Signed-off-by: Ashok Kumar <ashoks@xxxxxxxxxxxx> > --- > This is seen after the commit > "mips: fix start of free memory when using initrd" > in git://git.linux-mips.org/pub/scm/ralf/upstream-sfr.git branch > > Tested the image on MIPS platform creating the above > said scenario and initrd was corrupted. And it gloriously breaks the build if CONFIG_BLK_DEV_INITRD is disabled. Now most configurations will fail with something like: [...] LD vmlinux arch/mips/built-in.o: In function `setup_arch': (.init.text+0xff8): undefined reference to `initrd_end' arch/mips/built-in.o: In function `setup_arch': (.init.text+0xffc): undefined reference to `initrd_end' make[2]: *** [vmlinux] Error 1 make[1]: *** [sub-make] Error 2 make: *** [all] Error 2 make: Leaving directory `/home/ralf/src/linux/obj/lasat-build' Ralf
