Messages in this thread | | | From | "Luis R. Rodriguez" <> | Date | Wed, 2 Dec 2009 15:16:54 -0800 | Subject | Re: [ath9k-devel] BUG kmalloc-8192: Poison overwritten |
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On Wed, Dec 2, 2009 at 2:27 PM, Justin Mattock <justinmattock@gmail.com> wrote: > I have no idea what this is: > (first time I've seen this); > > > [ 13.055592] ============================================================================= > [ 13.055865] BUG kmalloc-8192: Poison overwritten > [ 13.056046] -----------------------------------------------------------------------------
I believe this means we write to an area in memory after we freed an skb.
> [ 13.056366] INFO: 0xffff88003290a100-0xffff88003290a143. First byte > 0x50 instead of 0x6b > [ 13.056366] INFO: Allocated in ath_rxbuf_alloc+0x25/0x94 [ath] > age=8898 cpu=0 pid=892 > [ 13.056366] INFO: Freed in skb_release_data+0xc1/0xc6 age=99 cpu=0 pid=0 > [ 13.056366] INFO: Slab 0xffffea0000b0f9c0 objects=3 used=0 > fp=0xffff88003290c090 flags=0x4000000000004082 > [ 13.056366] INFO: Object 0xffff88003290a048 @offset=8264 > fp=0xffff880032908000 > [ 13.056366] > [ 13.056366] Bytes b4 0xffff88003290a038: b9 9e fb ff 00 00 00 00 > 5a 5a 5a 5a 5a 5a 5a 5a ¹.ûÿ....ZZZZZZZZ
Can you reproduce this? We had a similar report from Miles Lanes I have been trying to followup on for a while now. The suggested patches to try are:
http://bombadil.infradead.org/~mcgrof/patches/ath9k/2009/11-19/70-mac80211-total-ampdu-tx-info.patch http://bombadil.infradead.org/~mcgrof/patches/ath9k/2009/11-19/71-ath9k-remove-tx_info_priv.patch
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