Messages in this thread | | | Date | Wed, 27 Aug 2008 03:58:58 -0700 | From | Arjan van de Ven <> | Subject | Re: [Bug #11342] Linux 2.6.27-rc3: kernel BUG at mm/vmalloc.c - bisected |
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Paul Mackerras wrote: > Linus Torvalds writes: > >> 4kB used to be the _only_ choice. And no, there weren't even irq stacks. >> So that 4kB was not just the whole kernel call-chain, it was also all the >> irq nesting above it. > > I think your memory is failing you. In 2.4 and earlier, the kernel > stack was 8kB minus the size of the task_struct, which sat at the > start of the 8kB. For instance, from include/asm-i386/processor.h for > 2.4.29:
but was shared with interrupts; so out of the 6Kb left, you had still really only 4Kb for user context stack
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