From: CAI Qian <caiqian@redhat.com>
To: netdev@vger.kernel.org
Cc: Dave Miller <davem@redhat.com>, stable@vger.kernel.org
Subject: Re: load/unload dccp module caused
Date: Thu, 3 Jan 2013 20:57:43 -0500 (EST) [thread overview]
Message-ID: <812526530.7851499.1357264663718.JavaMail.root@redhat.com> (raw)
In-Reply-To: <837890124.6766328.1356946979558.JavaMail.root@redhat.com>
Adding the netdev as Dave suggested.
----- Original Message -----
> From: "CAI Qian" <caiqian@redhat.com>
> To: stable@vger.kernel.org
> Cc: "Dave Miller" <davem@redhat.com>
> Sent: Monday, December 31, 2012 5:42:59 PM
> Subject: load/unload dccp module caused
>
> Just a head up that load and then unload the dccp module
> caused an oops below using the current stable kernel - v3.7.1.
> Some additional data point here: the mainline v3.6 release has
> no such problem, so this looks like a regression. The mainline
> v3.8-rc1 also has no such problem, so it looks like it has
> already been fixed there but looks like yet queued up for the
> stable yet (tested a few commits in Greg's stable-queue and
> Dave's net-stable queue did not find anything obvious to fix
> this). I am in-process to bisect to figure out the one that
> need to back-port right now.
>
> [ 93.809573]
> =============================================================================
> [ 93.809577] BUG kmalloc-16 (Tainted: G B ): Objects
> remaining in kmalloc-16 on kmem_cache_close()
> [ 93.809580]
> -----------------------------------------------------------------------------
> [ 93.809580]
> ...
> [ 356.336244] INFO: Object 0xc0000000fa1f0aa0 @offset=2720
> [ 356.336247] INFO: Object 0xc0000000fa1f0ab0 @offset=2736
> [ 356.336249] INFO: Object 0xc0000000fa1f0ac0 @offset=2752
> [ 356.336254] INFO: Object 0xc0000000fa1f0ad0 @offset=2768
> [ 356.336257] INFO: Object 0xc0000000fa1f0ae0 @offset=2784
> [ 356.336259] INFO: Object 0xc0000000fa1f0af0 @offset=2800
> [ 356.336262] INFO: Object 0xc0000000fa1f0b80 @offset=2944
> [ 356.336264] INFO: Object 0xc0000000fa1f0bd0 @offset=3024
> [ 356.336271] INFO: Object 0xc0000000fa1f1870 @offset=6256
> [ 356.336274] INFO: Object 0xc0000000fa1f1880 @offset=6272
> [ 356.336276] INFO: Object 0xc0000000fa1f1890 @offset=6288
> [ 356.346976] INFO: Object 0xc0000000fa1f18a0 @offset=6304
> [ 356.346979] INFO: Object 0xc0000000fa1f18b0 @offset=6320
> [ 356.346981] INFO: Object 0xc0000000fa1f1950 @offset=6480
> [ 356.346986] INFO: Object 0xc0000000fa1f1960 @offset=6496
> [ 356.346989] INFO: Object 0xc0000000fa1f1970 @offset=6512
> [ 356.346991] INFO: Object 0xc0000000fa1f1980 @offset=6528
> [ 356.346994] INFO: Object 0xc0000000fa1f1990 @offset=6544
> [ 356.346997] INFO: Object 0xc0000000fa1f19a0 @offset=6560
> [ 356.346999] INFO: Object 0xc0000000fa1f19b0 @offset=6576
> [ 356.347005] INFO: Object 0xc0000000fa1f19c0 @offset=6592
> [ 356.347008] INFO: Object 0xc0000000fa1f19d0 @offset=6608
> [ 356.347010] INFO: Object 0xc0000000fa1f19e0 @offset=6624
> [ 356.347012] INFO: Object 0xc0000000fa1f19f0 @offset=6640
> [ 356.347081] kmem_cache_destroy kmalloc-16: Slab cache still has
> objects
> ...
> [441283.322161] BUG: unable to handle kernel NULL pointer dereference
> at (null)
> [441283.331020] IP: [<ffffffff811785f9>]
> __kmem_cache_shutdown+0xa9/0x2f0
> [441283.338320] PGD 105568f067 PUD 104a086067 PMD 0
> [441283.343600] Oops: 0000 [#1] SMP
> [441283.347318] Modules linked in: dccp(-) nf_tproxy_core deflate
> zlib_deflate lzo nls_koi8_u nls_cp932 ts_kmp sctp libcrc32c
> binfmt_misc des_generic md4 nls_utf8 cifs dns_resolver sg iTCO_wdt
> kvm_intel igb iTCO_vendor_support coretemp kvm crc32c_intel lpc_ich
> i7core_edac edac_core i2c_i801 i2c_core mfd_core pcspkr microcode
> ioatdma dca sr_mod cdrom ata_generic sd_mod pata_acpi crc_t10dif
> ata_piix libata megaraid_sas dm_mirror dm_region_hash dm_log dm_mod
> [last unloaded: inet_diag]
> [441283.395187] CPU 6
> [441283.397337] Pid: 40979, comm: modprobe Tainted: G B
> 3.7.1+ #10 QCI QSSC-S4R/QSSC-S4R
> [441283.407245] RIP: 0010:[<ffffffff811785f9>] [<ffffffff811785f9>]
> __kmem_cache_shutdown+0xa9/0x2f0
> [441283.417256] RSP: 0018:ffff88205247de08 EFLAGS: 00010292
> [441283.423280] RAX: ffff881059780001 RBX: ffff88085acfa000 RCX:
> 00000000001c7d72
> [441283.431336] RDX: 00000000001c7d71 RSI: 0000000000000ff0 RDI:
> ffff88085f802600
> [441283.439394] RBP: ffff88205247de68 R08: 0000000000016940 R09:
> ffff88105fd36940
> [441283.447451] R10: ffffea004165e000 R11: ffffffff81178721 R12:
> ffffffffffffffe0
> [441283.455508] R13: ffff88085acf9000 R14: ffff88085f802500 R15:
> ffffea00216b3e40
> [441283.463565] FS: 00007fd36f206740(0000) GS:ffff88105fc20000(0000)
> knlGS:0000000000000000
> [441283.472687] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [441283.479194] CR2: 00007fd545ae9c74 CR3: 000000104a273000 CR4:
> 00000000000007e0
> [441283.487251] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [441283.495308] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [441283.503366] Process modprobe (pid: 40979, threadinfo
> ffff88205247c000, task ffff8820493fb240)
> [441283.512974] Stack:
> [441283.515312] ffffffffa0169760 ffff8810597800c0 0000000000000000
> 0000000000000000
> [441283.523705] ffff88085f8010d0 ffff88085f8010c0 ffff88205247de68
> ffff88085f802500
> [441283.532104] ffff88085f802568 0000000000000000 00000000011ec578
> 0000000000000000
> [441283.540499] Call Trace:
> [441283.543328] [<ffffffff8114993a>] kmem_cache_destroy+0x3a/0xe0
> [441283.549941] [<ffffffffa0164c0a>] tfrc_li_exit+0x1a/0x30 [dccp]
> [441283.556649] [<ffffffffa01635e8>] tfrc_lib_exit+0x18/0x20 [dccp]
> [441283.563451] [<ffffffffa01583e6>] ccid_cleanup_builtins+0x26/0x30
> [dccp]
> [441283.571032] [<ffffffffa0164e33>] dccp_fini+0xe/0x1db [dccp]
> [441283.577449] [<ffffffffa0164e25>] ? scaled_div.part.0+0x6/0x6
> [dccp]
> [441283.584639] [<ffffffff810bc3fe>] sys_delete_module+0x16e/0x2d0
> [441283.591342] [<ffffffff810d851c>] ?
> __audit_syscall_entry+0xcc/0x300
> [441283.598530] [<ffffffff810d8b3c>] ?
> __audit_syscall_exit+0x3ec/0x450
> [441283.605719] [<ffffffff815d3b99>] system_call_fastpath+0x16/0x1b
> [441283.612516] Code: 48 39 d7 4d 89 ec 75 41 e9 55 01 00 00 0f 1f 44
> 00 00 e8 0b f7 16 00 48 8b 55 c8 4c 89 fe 4c 89 f7 48 83 6a 08 01 e8
> 97 c6 ff ff <49> 8b 44 24 20 49 8d 7c 24 20 4d 89 e7 48 83 e8 20 48
> 39 7d c0
> [441283.634440] RIP [<ffffffff811785f9>]
> __kmem_cache_shutdown+0xa9/0x2f0
> [441283.641831] RSP <ffff88205247de08>
> [441283.645817] CR2: 0000000000000000
> [441283.649815] ---[ end trace 8e20d31634421a27 ]---
>
> CAI Qian
> --
> To unsubscribe from this list: send the line "unsubscribe stable" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
next parent reply other threads:[~2013-01-04 1:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <837890124.6766328.1356946979558.JavaMail.root@redhat.com>
2013-01-04 1:57 ` CAI Qian [this message]
2013-01-04 7:37 ` load/unload dccp module caused oops CAI Qian
2013-01-04 15:05 ` Christoph Lameter
2013-01-05 2:02 ` CAI Qian
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=812526530.7851499.1357264663718.JavaMail.root@redhat.com \
--to=caiqian@redhat.com \
--cc=davem@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=stable@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.