On Fri, 7 Oct 2005, John Rigg wrote:
> On Friday 7 October 2005 Ingo Molnar wrote:
> >i got overflows in initramfs's gunzip with certain debug options. I have
> >improved the stack footprint of the worst offenders in -rt11 (see the
> >standalone patch below) - John, does it boot any better?
>
> Ah. I'm using initrd. With CONFIG_LATENCY_TRACE=y my initrd.img is
> large, > 3.6MB. Maybe it's time to try initramfs.
>
> BTW I'm having trouble enabling DEBUG_STACKOVERFLOW. I can see
> it in arch/i386/Kconfig.debug (and not in arch/x86_64/Kconfig.debug),
> but it doesn't appear in menuconfig no matter what other kernel hacking
> options I enable. If I add it manually to .config it just gets removed
> by `make oldconfig'. Is this an x86_64 issue?
>
> For now I'll assume that there is a stack overflow and try initramfs.
>
Here John,
Add this patch and it will add the option for you in x86_64 (I forgot that
you were using that). I even set it to be default on. I didn't add a test
in do_IRQ, but I believe that the tests in latency.c should be good
enough.
-- Steve
Index: linux-rt-quilt/arch/x86_64/Kconfig.debug
===================================================================
--- linux-rt-quilt.orig/arch/x86_64/Kconfig.debug 2005-08-28 19:41:01.000000000 -0400
+++ linux-rt-quilt/arch/x86_64/Kconfig.debug 2005-10-07 11:43:45.000000000 -0400
@@ -33,6 +33,14 @@
options. See Documentation/x86_64/boot-options.txt for more
details.
+config DEBUG_STACKOVERFLOW
+ bool "Check for stack overflows"
+ depends on DEBUG_KERNEL
+ default y
+ help
+ This option will cause messages to be printed if free stack space
+ drops below a certain limit.
+
config KPROBES
bool "Kprobes"
depends on DEBUG_KERNEL
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
