Re: [Bug #11342] Linux 2.6.27-rc3: kernel BUG at mm/vmalloc.c -bisected

From: Alan Cox
Date: Wed Aug 27 2008 - 04:44:59 EST


> You have a good point that aiming at 4kB makes 8kB a very safe choice.

Not really no - we use separate IRQ stacks in 4K but not 8K mode on
x86-32. That means you've actually got no more space if you are unlucky
with the timing of events. The 8K mode is merely harder to debug.

If 4K stacks really are not safe then x86-32 really really needs to
switch to using IRQ stacks in 8K stack mode as well.

Alan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/