Messages in this thread | | | Date | Sat, 1 Sep 2012 10:20:18 +0200 | From | Francois Romieu <> | Subject | Re: kernel 3.2.27 on arm: WARNING: at mm/page_alloc.c:2109 __alloc_pages_nodemask+0x1d4/0x68c() |
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Hugh Dickins <hughd@google.com> : > [ Cc'ing original mail to netdev as the problem may be recognized there ] [...] > Francois is right that a GFP_ATOMIC allocation from pskb_expand_head() > is failing, which can easily happen, and cause your "failed to reallocate > TX buffer" errors; but it's well worth looking up what's actually on > lines 2108 and 2109 of mm/page_alloc.c in 3.2.27: > > if (order >= MAX_ORDER) { > WARN_ON_ONCE(!(gfp_mask & __GFP_NOWARN));
You are right. The wifi Tx path error is not related.
I overlooked it was using SLUB btw.
> That was probably not a sane allocation request, it has gone out of range: > maybe the skb header is even corrupted. If you're lucky, it might be > something that netdev will recognize as already fixed.
Afaics nothing related to mv643xx_eth.c, nor pskb_expand_head nor ip6_forward, at least nothing trivially close. Eric may provide a better answer.
-- Ueimor
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