Messages in this thread | | | Date | Wed, 10 Jun 2009 14:11:42 -0700 | From | Yinghai Lu <> | Subject | Re: [GIT PULL] Early boot SLAB for 2.6.31 |
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Ingo Molnar wrote: > * Pekka J Enberg <penberg@cs.helsinki.fi> wrote: > >> Hi Linus, >> >> Here are the core patches for enabling slab before the scheduler initializes >> itself in the boot sequence. I added slab fallback support to the bootmem >> allocator so that we don't need a flag day for switching to early slab. >> >> I have tested this series on x86-64 with SLAB, SLUB, and SLOB. Note: the >> following harmless warning appears at boot: >> >> [ 0.000000] ------------[ cut here ]------------ >> [ 0.000000] WARNING: at mm/bootmem.c:535 alloc_arch_preferred_bootmem+0x31/0x56() >> [ 0.000000] Hardware name: >> [ 0.000000] Modules linked in: >> [ 0.000000] Pid: 0, comm: swapper Not tainted 2.6.30 #472 >> [ 0.000000] Call Trace: >> [ 0.000000] [<ffffffff809d62c3>] ? alloc_arch_preferred_bootmem+0x31/0x56 >> [ 0.000000] [<ffffffff8025c304>] warn_slowpath_common+0x7c/0xa9 >> [ 0.000000] [<ffffffff8025c345>] warn_slowpath_null+0x14/0x16 >> [ 0.000000] [<ffffffff809d62c3>] alloc_arch_preferred_bootmem+0x31/0x56 >> [ 0.000000] [<ffffffff809d6833>] ___alloc_bootmem_nopanic+0x3f/0xc9 >> [ 0.000000] [<ffffffff809d68ce>] ___alloc_bootmem+0x11/0x3a >> [ 0.000000] [<ffffffff809d69a0>] __alloc_bootmem+0xb/0xd >> [ 0.000000] [<ffffffff809d21f9>] sched_init+0x43/0x4ee >> [ 0.000000] [<ffffffff809c0aae>] start_kernel+0x1cc/0x3aa >> [ 0.000000] [<ffffffff809c029a>] x86_64_start_reservations+0xaa/0xae >> [ 0.000000] [<ffffffff809c037f>] x86_64_start_kernel+0xe1/0xe8 >> [ 0.000000] ---[ end trace 4eaa2a86a8e2da22 ]--- > > Yeah, i got this too: > > [ 0.004000] spurious 8259A interrupt: IRQ7. > [ 0.004000] ------------[ cut here ]------------ > [ 0.004000] WARNING: at mm/bootmem.c:537 alloc_arch_preferred_bootmem+0x40/0x7e() > [ 0.004000] Hardware name: System Product Name > [ 0.004000] Modules linked in: > [ 0.004000] Pid: 0, comm: swapper Not tainted 2.6.30-tip-02102-g994fdea-dirty #52083 > [ 0.004000] Call Trace: > [ 0.004000] [<ffffffff81d699bb>] ? alloc_arch_preferred_bootmem+0x40/0x7e > [ 0.004000] [<ffffffff81078931>] warn_slowpath_common+0x8d/0xd0 > [ 0.004000] [<ffffffff8107899b>] warn_slowpath_null+0x27/0x3d > [ 0.004000] [<ffffffff81d699bb>] alloc_arch_preferred_bootmem+0x40/0x7e > [ 0.004000] [<ffffffff81079992>] ? vprintk+0x2d6/0x31b > [ 0.004000] [<ffffffff81d6a036>] ___alloc_bootmem_nopanic+0x4e/0xec > [ 0.004000] [<ffffffff81d6a0f4>] ___alloc_bootmem+0x20/0x61 > [ 0.004000] [<ffffffff81053dc8>] ? default_spin_lock_flags+0x1e/0x36 > [ 0.004000] [<ffffffff81d6a28b>] __alloc_bootmem+0x1e/0x34 > [ 0.004000] [<ffffffff817971cf>] vgacon_scrollback_startup+0x3d/0xa4 > [ 0.004000] [<ffffffff8103ad11>] ? native_io_delay+0xd/0x58 > [ 0.004000] [<ffffffff813d3545>] vgacon_startup+0x38f/0x3be > [ 0.004000] [<ffffffff81d4e140>] ? early_idt_handler+0x0/0x71 > [ 0.004000] [<ffffffff81d79275>] con_init+0x2e/0x246 > [ 0.004000] [<ffffffff81d4e140>] ? early_idt_handler+0x0/0x71 > [ 0.004000] [<ffffffff81d789aa>] console_init+0x28/0x50 > [ 0.004000] [<ffffffff810530f5>] ? native_irq_enable+0xb/0xc > [ 0.004000] [<ffffffff81d4eead>] start_kernel+0x20e/0x35b > [ 0.004000] [<ffffffff81d4e140>] ? early_idt_handler+0x0/0x71 > [ 0.004000] [<ffffffff81d4e140>] ? early_idt_handler+0x0/0x71 > [ 0.004000] [<ffffffff81d4e2b2>] x86_64_start_reservations+0xb9/0xd4 > [ 0.004000] [<ffffffff81d4e000>] ? __init_begin+0x0/0x140 > [ 0.004000] [<ffffffff81d4e3d1>] x86_64_start_kernel+0x104/0x127 > [ 0.004000] ---[ end trace a7919e7f17c0a725 ]--- > [ 0.004000] Console: colour VGA+ 80x25 > [ 0.004000] console handover: boot [earlyser0] -> real [ttyS0] > > box booted up fine otherwise. > git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-2.6-yinghai.git
last 10 or so.
YH
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