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Date: Tue, 22 Apr 2008 02:54:43 +0200 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Jiri Slaby <jirislaby@...il.com> Cc: paulmck@...ux.vnet.ibm.com, David Miller <davem@...emloft.net>, torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org, mingo@...e.hu, akpm@...ux-foundation.org, linux-ext4@...r.kernel.org, herbert@...dor.apana.org.au, Zdenek Kabelac <zdenek.kabelac@...il.com> Subject: Re: 2.6.25-git2: BUG: unable to handle kernel paging request at ffffffffffffffff On Tuesday, 22 of April 2008, Jiri Slaby wrote: > On 04/22/2008 01:02 AM, Jiri Slaby wrote: > > On 04/22/2008 12:54 AM, Paul E. McKenney wrote: > >> On Tue, Apr 22, 2008 at 12:26:04AM +0200, Jiri Slaby wrote: > >>>> Having slub_debug enabled, tomorrow will be results, I guess... > > OK, methinks it's tomorrow yet, at least here. > > >>> Sorry, one more entry: > >>> > >>> 00000000000000f0 dentry.d_op (Zdenek, offset ? around 136) > > > > Zdenek's is at offset 184. > > > >>> 00f0000000000000 dentry.d_hash.next (me, offset 24) > >>> ffff81f02003f16c dentry.d_name.name (me, offset 56) > >>> memory ORed by 000000f000000000 > >>> fffff0002004c1b0 file.f_mapping (me, offset 176) > >>> memory hole, it was something like > >>> (ffff81002004c1b0 & ~00000f0000000000) | 0000f00000000000? > >>> ffffffffffffffff dentry.d_hash.next (Rafael, offset ? around 24) > >>> -1, ~0ULL > > The same place, dentry.d_hash.next is 1. No slub debug clues... I think, I'll > give slab a try. Any other clues? Well, SLUB uses some per CPU data structures. Is it possible that they get corrupted and which leads to the observed symptoms? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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