ACPI warning from alloc_pages_nodemask on boot (2.6.33 regression)
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From: Peter Zijlstra on 30 Dec 2009 10:40 On Wed, 2009-12-30 at 15:21 +0900, KOSAKI Motohiro wrote: > >> [ 1.630020] ------------[ cut here ]------------ > >> [ 1.630026] WARNING: at mm/page_alloc.c:1812 __alloc_pages_nodemask+0x617/0x730() > > > > if (order >= MAX_ORDER) { > > WARN_ON_ONCE(!(gfp_mask & __GFP_NOWARN)); > > return NULL; > > } > > > > I don't know what the mm alloc code is complaining about here. > >> [ 1.630028] Hardware name: System Product Name > >> [ 1.630029] Modules linked in: > >> [ 1.630032] Pid: 1, comm: swapper Not tainted 2.6.33-rc2 #4 > >> [ 1.630034] Call Trace: > >> [ 1.630064] [<ffffffff812cae3e>] acpi_os_allocate+0x25/0x27 Right, so ACPI is trying to allocate something larger than 2^MAX_ORDER pages, which on x86 computes to 4K * 2^11 = 8M. That's not going to work. Did this machine properly boot before? I seem to remember people working on moving away from bootmem and getting th page/slab stuff up and running sooner, it might be fallout from that... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
From: Stephen Hemminger on 30 Dec 2009 13:10
On Wed, 30 Dec 2009 16:35:44 +0100 Peter Zijlstra <peterz(a)infradead.org> wrote: > On Wed, 2009-12-30 at 15:21 +0900, KOSAKI Motohiro wrote: > > >> [ 1.630020] ------------[ cut here ]------------ > > >> [ 1.630026] WARNING: at mm/page_alloc.c:1812 __alloc_pages_nodemask+0x617/0x730() > > > > > > if (order >= MAX_ORDER) { > > > WARN_ON_ONCE(!(gfp_mask & __GFP_NOWARN)); > > > return NULL; > > > } > > > > > > I don't know what the mm alloc code is complaining about here. > > > >> [ 1.630028] Hardware name: System Product Name > > >> [ 1.630029] Modules linked in: > > >> [ 1.630032] Pid: 1, comm: swapper Not tainted 2.6.33-rc2 #4 > > >> [ 1.630034] Call Trace: > > > >> [ 1.630064] [<ffffffff812cae3e>] acpi_os_allocate+0x25/0x27 > > Right, so ACPI is trying to allocate something larger than 2^MAX_ORDER > pages, which on x86 computes to 4K * 2^11 = 8M. > > That's not going to work. > > Did this machine properly boot before? I seem to remember people working > on moving away from bootmem and getting th page/slab stuff up and > running sooner, it might be fallout from that... > Yes, and it still boots now. -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |