Messages in this thread | | | Subject | solved: ( was Re: non volatile ram disk) | From | Erez Doron <> | Date | 22 Jan 2002 15:53:45 +0200 |
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well, i finanly managed to make a ramdisk which will not earsed by reboot.
the solution is to give mem=32m, and use ioremap to map the rest of the 32m to virtual adresses
now it works !!!
thanks anyway erez.
On Mon, 2002-01-21 at 15:15, Erez Doron wrote: > hi > > I'm looking for a way to make a ramdisk which is not erased on reboot > this is for use with ipaq/linux. > > i tought of booting with mem=32m and map a block device to the rest of > the 32M ram i have. > > the probelm is that giving mem=32m to the kernel will cause the kernel > to map only the first 32m of physical memory to virtual one, so using > __pa(ptr) on the top 32m causes a kernel oops. > > any idea ? > > > regards > erez. > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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