Re: 2.6.25-rc8-mm2: FIX kmalloc-2048 (was Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc+0x69/0x110) | KernelTrap

Re: 2.6.25-rc8-mm2: FIX kmalloc-2048 (was Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc+0x69/0x110)

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From: Alexey Dobriyan <adobriyan@...>

To: Christoph Lameter <clameter@...>

Cc: Pekka Enberg <penberg@...>, Andrew Morton <akpm@...>, <linux-kernel@...>, <netdev@...>

Subject: Re: 2.6.25-rc8-mm2: FIX kmalloc-2048 (was Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc+0x69/0x110)

Date: Saturday, April 19, 2008 - 7:17 am

On Mon, Apr 14, 2008 at 01:05:09PM -0700, Christoph Lameter wrote:
quoted text> On Mon, 14 Apr 2008, Alexey Dobriyan wrote:
> 
> > I can reproduce semi-reliably (by kernel standards) corruption in
> > kmalloc-2048. No idea if this can explain all "struct file" related
> > oopses I saw, or SLUB free pointer corruption Pekka and Christoph are
> > looking into.
> 
> The slub free pointer corruption is usually a result of the overwrites.
> 
> > Bytes b4 0xffff81017ff9d2c0:  62 ea ff ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a
> >   Object 0xffff81017ff9d2d0:  6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> >   Object 0xffff81017ff9d2e0:  6b 6b 00 18 f3 a2 9f 90 00 1b 38 af 22 49 08 00
> >   Object 0xffff81017ff9d2f0:  45 10 00 4c ff 59 40 00 40 11 86 ac c0 a8 00 2a
> >   Object 0xffff81017ff9d300:  50 fa a2 be 91 43 00 7b 00 38 54 d4 23 00 00 00
> >   Object 0xffff81017ff9d310:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> >   Object 0xffff81017ff9d320:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> >   Object 0xffff81017ff9d330:  00 00 00 00 4c ff 10 44 74 7f 6f 9d e4 c8 a2 4f
> >   Object 0xffff81017ff9d340:  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> >  Redzone 0xffff81017ff9dad0:  bb bb bb bb bb bb bb bb
> >  Padding 0xffff81017ff9db10:  5a 5a 5a 5a 5a 5a 5a 5a
> > 
> > FIX kmalloc-2048: Restoring 0xffff81017ff9d2e2-0xffff81017ff9d8d9=0x6b
> 
> Looks like skb corruption. Would be helpful to have the complete output 
> though. Does the data in the restored range trigger any memories?

No.

I'm currently tracing this bug and 2.6.24 also has it. :-(

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Messages in current thread:

2.6.25-rc8-mm2, Andrew Morton, (Thu Apr 10, 11:33 pm)

BUG at __dentry_open [Was: 2.6.25-rc8-mm2], Jiri Slaby, (Mon Apr 14, 4:07 am)

2.6.25-rc8-mm2 - CONFIG_PROFILE_LIKELY broke again..., , (Sat Apr 12, 4:52 am)

2.6.25-rc8-mm2, , (Sat Apr 12, 5:41 am)

2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc+0x69/0x110, Alexey Dobriyan, (Sun Apr 13, 4:44 pm)

Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc..., Pekka J Enberg, (Mon Apr 14, 5:51 am)

Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc..., Pekka Enberg, (Mon Apr 14, 12:01 pm)

Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc..., Christoph Lameter, (Mon Apr 14, 1:53 pm)

Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc..., Christoph Lameter, (Mon Apr 14, 1:57 pm)

Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc..., Alexey Dobriyan, (Mon Apr 14, 2:32 pm)

2.6.25-rc8-mm2: FIX kmalloc-2048 (was Re: 2.6.25-rc8-mm2: IP..., Alexey Dobriyan, (Mon Apr 14, 3:56 pm)

Re: 2.6.25-rc8-mm2: FIX kmalloc-2048 (was Re: 2.6.25-rc8-mm2..., Christoph Lameter, (Mon Apr 14, 4:05 pm)

Re: 2.6.25-rc8-mm2: FIX kmalloc-2048 (was Re: 2.6.25-rc8-mm2..., Alexey Dobriyan, (Sat Apr 19, 7:17 am)

atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Sat Apr 19, 10:45 am)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Sat Apr 19, 10:54 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Sun Apr 20, 7:14 am)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Sun Apr 20, 7:06 am)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Sun Apr 20, 8:26 am)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Sun Apr 20, 2:37 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Sun Apr 20, 4:55 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Chris Snook, (Mon Apr 21, 2:42 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Mon Apr 21, 3:56 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Mon Apr 21, 10:08 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Fri Apr 25, 8:57 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Sun May 4, 5:15 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Tue May 6, 12:02 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Fri May 9, 3:51 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Chris Snook, (Fri May 9, 2:56 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Fri May 9, 4:07 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Fri May 9, 3:38 pm)

[PATCH] Re: atl1 64-bit => 32-bit DMA borkage (reproducib..., Alexey Dobriyan, (Sat May 10, 3:31 pm)

Re: [PATCH] Re: atl1 64-bit => 32-bit DMA borkage (reprod..., Jay Cliburn, (Sat May 10, 9:58 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Sun May 4, 8:31 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Jay Cliburn, (Sun May 4, 8:34 pm)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Mon Apr 28, 2:42 am)

Re: atl1 64-bit => 32-bit DMA borkage (reproducible, bisected), Alexey Dobriyan, (Tue Apr 22, 3:02 pm)

Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc..., Andrew Morton, (Sun Apr 13, 4:53 pm)

Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc..., Christoph Lameter, (Mon Apr 14, 2:00 pm)

Re: 2.6.25-rc8-mm2: IP: [<ffffffff802868f9>] __kmalloc..., Pekka Enberg, (Mon Apr 14, 12:18 pm)

2.6.25-rc8-mm2: panic involving mount_block_root and down th..., Alexey Dobriyan, (Fri Apr 11, 7:43 pm)

Re: 2.6.25-rc8-mm2: CONFIG_ATA_SFF: panic involving mount_bl..., Alexey Dobriyan, (Fri Apr 11, 8:59 pm)

Re: 2.6.25-rc8-mm2: CONFIG_ATA_SFF: panic involving mount_bl..., Adrian Bunk, (Sat Apr 12, 2:52 am)

Re: 2.6.25-rc8-mm2: CONFIG_ATA_SFF: panic involving mount_bl..., Jeff Garzik, (Sat Apr 12, 6:02 am)

Re: 2.6.25-rc8-mm2: CONFIG_ATA_SFF: panic involving mount_bl..., Tejun Heo, (Sat Apr 12, 8:45 pm)

[mm patch] select ATA_SFF, Adrian Bunk, (Sat Apr 12, 8:51 pm)

Re: 2.6.25-rc8-mm2, KAMEZAWA Hiroyuki, (Fri Apr 11, 5:57 am)

Re: 2.6.25-rc8-mm2, KAMEZAWA Hiroyuki, (Fri Apr 11, 6:23 am)

Re: 2.6.25-rc8-mm2, Pekka Enberg, (Fri Apr 11, 6:34 am)

Re: 2.6.25-rc8-mm2, KAMEZAWA Hiroyuki, (Fri Apr 11, 6:57 am)

Re: 2.6.25-rc8-mm2, KAMEZAWA Hiroyuki, (Fri Apr 11, 7:17 am)

Re: 2.6.25-rc8-mm2, KAMEZAWA Hiroyuki, (Fri Apr 11, 9:17 am)

Re: 2.6.25-rc8-mm2, Pekka Enberg, (Fri Apr 11, 10:24 am)

Re: 2.6.25-rc8-mm2, KAMEZAWA Hiroyuki, (Sun Apr 13, 11:13 pm)

Re: 2.6.25-rc8-mm2, Adrian Bunk, (Fri Apr 11, 9:40 am)

Re: 2.6.25-rc8-mm2, Andrew Morton, (Sat Apr 12, 12:22 am)

Re: 2.6.25-rc8-mm2, Aneesh Kumar K.V, (Sat Apr 12, 2:43 pm)

Re: 2.6.25-rc8-mm2, Michael Schmitz, (Sun Apr 13, 3:45 am)

Re: 2.6.25-rc8-mm2, Geert Uytterhoeven, (Sun Apr 13, 4:11 am)

2.6.25-rc8-mm2: boot hang after "ACPI: using IOAPIC for inte..., Alexey Dobriyan, (Fri Apr 11, 2:29 am)

Re: 2.6.25-rc8-mm2: boot hang after "ACPI: using IOAPIC for ..., Pekka Enberg, (Fri Apr 11, 2:43 am)

Re: 2.6.25-rc8-mm2: boot hang after "ACPI: using IOAPIC for ..., Pekka Enberg, (Fri Apr 11, 6:35 am)

Re: 2.6.25-rc8-mm2: boot hang after "ACPI: using IOAPIC for ..., Alexey Dobriyan, (Fri Apr 11, 5:07 pm)

Re: 2.6.25-rc8-mm2: boot hang after "ACPI: using IOAPIC for ..., Pekka J Enberg, (Fri Apr 11, 5:25 pm)

Re: 2.6.25-rc8-mm2: boot hang after "ACPI: using IOAPIC for ..., Alexey Dobriyan, (Fri Apr 11, 7:09 pm)

2.6.25-rc8-mm2: boot hang after "ACPI: using IOAPIC for inte..., Alexey Dobriyan, (Fri Apr 11, 2:28 am)

Re: 2.6.25-rc8-mm2, , (Sat Apr 12, 1:53 am)

Re: 2.6.25-rc8-mm2, Andrew Morton, (Sat Apr 12, 2:07 am)

Re: 2.6.25-rc8-mm2: Observed problems: Not a detailed bug re..., Zan Lynx, (Tue Apr 15, 1:00 pm)

Re: 2.6.25-rc8-mm2: Observed problems: Not a detailed bug re..., Andrew Morton, (Tue Apr 15, 2:42 pm)

Re: 2.6.25-rc8-mm2: Observed problems: Not a detailed bug re..., Rafael J. Wysocki, (Tue Apr 15, 4:12 pm)

2.6.25-rc8-mm2 - ftraced chews 100% of a CPU, , (Sat Apr 12, 6:47 am)

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