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From: "Holger Hoffstätte" <holger.hoffstaette@googlemail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: Kernel 4.1.6 Panic due to slab corruption
Date: Mon, 7 Sep 2015 11:58:18 +0000 (UTC)	[thread overview]
Message-ID: <pan.2015.09.07.11.58.18@googlemail.com> (raw)
In-Reply-To: pan.2015.09.07.11.49.13@googlemail.com

On Mon, 07 Sep 2015 11:49:12 +0000, Holger Hoffstätte wrote:

> On Mon, 07 Sep 2015 14:30:49 +0300, Nikolay Borisov wrote:
> 
>> If you have the vmlinux image for the kernel you were running at the
>> time, the crash occured, could you post the output of addr2line -f -e
>> path/to/vmlinux ffffffff8115bd4d to see if it also fails in
>> get_freepointer.
> 
> Had to rebuild to get an uncompressed vmlinux, but here it is:
> 
> holger>addr2line -f -e vmlinux ffffffff8115bd4d
> kmem_cache_alloc
> ??:?
> 
> Not sure how much we can learn from this. :}

Also for what it's worth the related splatter is all in the same place:

holger>zgrep ffffffff8115bd4d /var/log/kern.log.0.gz 
Sep  5 20:42:02 ragnarok kernel: IP: [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: IP: [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: IP: [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: IP: [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: IP: [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:02 ragnarok kernel: RIP  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:03 ragnarok kernel: IP: [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:03 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:03 ragnarok kernel: RIP  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:10 ragnarok kernel: IP: [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:10 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:10 ragnarok kernel: RIP  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:10 ragnarok kernel: IP: [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:10 ragnarok kernel: RIP: 0010:[<ffffffff8115bd4d>]  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160
Sep  5 20:42:10 ragnarok kernel: RIP  [<ffffffff8115bd4d>] kmem_cache_alloc+0x6d/0x160

CPU is a 4 core HT i7 (aka 8 vcores), and so I have 8 splats.

thanks,

Holger


  reply	other threads:[~2015-09-07 11:58 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-07  8:41 Kernel 4.1.6 Panic due to slab corruption Nikolay Borisov
2015-09-07 10:37 ` Holger Hoffstätte
2015-09-07 11:30   ` Nikolay Borisov
2015-09-07 11:49     ` Holger Hoffstätte
2015-09-07 11:58       ` Holger Hoffstätte [this message]
2015-09-07 11:14 ` Nikolay Borisov
2015-09-07 11:40   ` Fwd: " Nikolay Borisov
2015-09-08 13:58   ` Christoph Lameter
2015-09-08 14:06     ` Nikolay Borisov
2015-09-08 14:27       ` Christoph Lameter
2015-09-08 14:41         ` Nikolay Borisov
2015-09-08 15:15           ` Christoph Lameter
2015-09-09 11:40             ` Nikolay Borisov
2015-09-09 14:01               ` Christoph Lameter
2015-09-09 16:26                 ` Vlastimil Babka
2015-09-09 17:58                   ` Christoph Lameter
2015-09-10  6:12                 ` Nikolay Borisov
2015-09-10 16:30                   ` Christoph Lameter

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