All of lore.kernel.org
 help / color / mirror / Atom feed
From: Andrew Morton <akpm@linux-foundation.org>
To: netdev@vger.kernel.org
Cc: bugzilla-daemon@bugzilla.kernel.org,
	bugme-daemon@bugzilla.kernel.org, casteyde.christian@free.fr
Subject: Re: [Bugme-new] [Bug 27212] New: Warning kmemcheck: Caught 64-bit read from uninitialized memory in netlink_broadcast_filtered
Date: Thu, 20 Jan 2011 12:25:49 -0800	[thread overview]
Message-ID: <20110120122549.85863a84.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-27212-10286@https.bugzilla.kernel.org/>


(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Thu, 20 Jan 2011 20:08:32 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

> https://bugzilla.kernel.org/show_bug.cgi?id=27212
> 
>            Summary: Warning kmemcheck: Caught 64-bit read from
>                     uninitialized memory in netlink_broadcast_filtered
>            Product: Other
>            Version: 2.5
>     Kernel Version: 2.6.38-rc1
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Other
>         AssignedTo: other_other@kernel-bugs.osdl.org
>         ReportedBy: casteyde.christian@free.fr
>         Regression: Yes
> 
> 
> Athlon 64 X2 3000 in 64bits
> Slackware64 13.1
> Kernel compiled with kmemcheck and other debug options
> 
> At boot I got the following warning:
> 
> PCI: Using ACPI for IRQ routing
> PCI: pci_cache_line_size set to 64 bytes
> pci 0000:00:00.0: address space collision: [mem 0xe0000000-0xefffffff pref]
> conflicts with GART [mem 0x
> e0000000-0xefffffff]
> reserve RAM buffer: 000000000009fc00 - 000000000009ffff 
> reserve RAM buffer: 000000003ffb0000 - 000000003fffffff
> WARNING: kmemcheck: Caught 64-bit read from uninitialized memory
> (ffff88003e170eb0)
> 0000000000000000010000000000000000000000000000000000000000000000
>  i i i i i i i i i i i i u u u u u u u u u u u u u u u u u u u u
>                                  ^
> 
> Pid: 1, comm: swapper Not tainted 2.6.38-rc1 #2 K8 Combo-Z/K8 Combo-Z
> RIP: 0010:[<ffffffff8127ad72>]  [<ffffffff8127ad72>] memmove+0x122/0x1a0
> RSP: 0018:ffff88003e0b3c60  EFLAGS: 00010202
> RAX: ffff88003e170080 RBX: ffff88003e27b500 RCX: 0000000000000020
> RDX: 0000000000000018 RSI: ffff88003e170ea0 RDI: ffff88003e1700a0
> RBP: ffff88003e0b3c60 R08: 0000000000000001 R09: 0000000000000001
> R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
> R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000001
> FS:  0000000000000000(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> CR2: ffff88003e018abc CR3: 0000000001a1c000 CR4: 00000000000006f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
>  [<ffffffff814741c2>] pskb_expand_head+0xc2/0x2a0
>  [<ffffffff81498fa7>] netlink_broadcast_filtered+0xa7/0x4a0
>  [<ffffffff814993b8>] netlink_broadcast+0x18/0x20
>  [<ffffffff8149b884>] genlmsg_mcast+0x144/0x180
>  [<ffffffff8149bc4a>] genl_ctrl_event+0xca/0x450
>  [<ffffffff8149c75d>] genl_register_mc_group+0x10d/0x2a0
>  [<ffffffff81ad9da4>] genl_init+0x6c/0x84
>  [<ffffffff810001de>] do_one_initcall+0x3e/0x170
>  [<ffffffff81aae6ea>] kernel_init+0x197/0x21b
>  [<ffffffff81003254>] kernel_thread_helper+0x4/0x10
>  [<ffffffffffffffff>] 0xffffffffffffffff
> pnp: PnP ACPI init
> ACPI: bus type pnp registered
> pnp 00:00: [bus 00-ff]
> pnp 00:00: [io  0x0cf8-0x0cff]
> 
> This is specific to 2.6.38-rc1.
> 



       reply	other threads:[~2011-01-20 20:26 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-27212-10286@https.bugzilla.kernel.org/>
2011-01-20 20:25 ` Andrew Morton [this message]
2011-01-20 20:41   ` [Bugme-new] [Bug 27212] New: Warning kmemcheck: Caught 64-bit read from uninitialized memory in netlink_broadcast_filtered Eric Dumazet
2011-01-21  7:49     ` Pekka Enberg
2011-02-14 17:35       ` Eric Dumazet
2011-02-14 19:43         ` David Miller
2011-02-15  5:48         ` Pekka Enberg
2011-02-15 16:40           ` Christoph Lameter
2011-02-15 22:21           ` David Rientjes
2011-01-26  9:18   ` Eric Dumazet
2011-01-27 22:41     ` David Miller

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20110120122549.85863a84.akpm@linux-foundation.org \
    --to=akpm@linux-foundation.org \
    --cc=bugme-daemon@bugzilla.kernel.org \
    --cc=bugzilla-daemon@bugzilla.kernel.org \
    --cc=casteyde.christian@free.fr \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.