Messages in this thread | | | Date | Wed, 20 Jun 2007 12:35:58 +0200 | From | Maciej Sołtysiak <> | Subject | Re: 2.6.21.14 NFS related oops |
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> > I'm running 2.6.21.5 now with slab debugging on, here's what I got about > > slab corruption: > > > > Slab corruption: skbuff_head_cache start=ef287b78, len=164 > > Redzone: 0x5a2cf071/0x5a2cf071. > > Last user: [<c031710c>](kfree_skbmem+0x3c/0x90) > > 090: 6b 6b 6b 6b 6b 63 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b > > Single bit error detected. Probably bad RAM. > > Run memtest86+ or a similar memory test tool. > > Prev obj: start=ef287ac8, len=164 > > Redzone: 0x170fc2a5/0x170fc2a5. > > Last user: [<c031798b>](__alloc_skb+0x2b/0x100) > > 000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > > 010: 00 00 00 00 e0 71 e6 ef 00 00 00 00 00 00 00 00 > > Next obj: start=ef287c28, len=164 > > Redzone: 0x170fc2a5/0x170fc2a5. > > Last user: [<c031798b>](__alloc_skb+0x2b/0x100) > > 000: 84 d0 85 c5 84 d0 85 c5 04 d0 85 c5 2c 0a 73 46 > > 010: 6f cd 09 00 00 00 00 00 01 00 00 00 08 e5 72 ee > > > > How probable is that it is really a bad memory issue? > > Does this report say anything about which RAM chip I should > > investigate/replace ? I have 1x512MB+1x256MB > > > > Best Regards, > > Maciej > > I'd try doing as suggested above: run memtest86 on the computer for a > couple of hours and see what it tells you. That should hopefully give > you enough information to figure out which chips need replacing.
I am also getting BAD CRC on the disk that holds my swap partition. I was wondering if slab debugging could say I have slab corruption not because my RAM chips are bad, but because SWAP has bad blocks ? And that the whole problem might be swap disk related not ram related.
> Cheers > Trond Regards, Maciej
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