Messages in this thread | | | Date | Fri, 06 Oct 2000 12:12:36 +0300 | From | Petko Manolov <> | Subject | Re: is there a limit on bss size? |
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Philipp Rumpf wrote: > > On Thu, Oct 05, 2000 at 04:30:35PM +0100, Tigran Aivazian wrote: > > Hi, > > > > I put a simple construct in kernel/sched.c like this: > > > > struct runq_log_s { > > char comm[16]; > > int pid; > > } runq_log[1024*1024]; > > > > and the kernel didn't boot. Yes, I understand it is 20M of bss - so what?
Is it impossible to allocate this array dynamically? I am not sure if we have to change too many things in startup code. If yes, we must have good enough arguments for Linus.
> Look at the code in arch/i386/kernel/entry.S that initializes our temporary > page tables:
Actually this code is from arch/i386/kernel/head.S ;-)
> /* > * Initialize page tables > */ > movl $pg0-__PAGE_OFFSET,%edi /* initialize page tables */ > movl $007,%eax /* "007" doesn't mean with right to kill, but > PRESENT+RW+USER */ > 2: stosl > add $0x1000,%eax > cmp $empty_zero_page-__PAGE_OFFSET,%edi > jne 2b
Actually when/where exactly mm init takes place should be checked first.
best, Petkan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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