Re: Kernel crash in ip_nat on ADM5120

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Please reply to tom@xxxxxxx, I posted from wrong profile first.

      Sorry and thanks, Tom

VODA IT wrote:

Hello,

I get following problem using the 2.6.11 kernel on ADM5120 platform:
Under heavy network load (ie. flood ping) the kernel crashes in NAT (no nat is done actually), removing IP filtering from kernel leaves everything perfectly stable.... I am attaching dumps, including parsed ksyms. Anyone able to help ?


      Thanks, Tom

Kernel panic - not syncing: Caught Machine Check exception - caused by

multiple matching entries in the TLB

ksymoops 2.4.9 on i686 2.6.5-7.151-default.  Options used
    -v ../linux-2.6.11-mipscvs-20050326/vmlinux (specified)
    -K (specified)
    -L (specified)
    -O (specified)
    -m ../linux-2.6.11-mipscvs-20050326/System.map (specified)
    -t mipsel -a mipsel

Cpu 0
$ 0   : 00000000 801f0000 c00042a8 000002a8
$ 4   : 801cc6f0 8faf4800 00000080 00000001
$ 8   : 0302a8c0 0102a8c0 8025baf0 8025baf8
$12   : 00ff0000 00000278 0000003e 72756f73
$16   : 00000055 80fd4cac 8025baf0 80fd4d28
$20   : 00000001 00000001 00000000 80f36c00
$24   : 00000008 00426bc0
$28   : 8025a000 8025bac8 8025bc78 801a0d78
Hi    : 00000055
Lo    : 0140d97a
epc   : 801a0f18 ip_nat_setup_info+0x27c/0x59c     Not tainted
Status: 10208403    KERNEL EXL IE
Cause : 00800060
Kernel panic - not syncing: Caught Machine Check exception - caused by
Warning (Oops_read): Code line not seen, dumping what data is available


$12; 00ff0000 <__crc_nf_ct_attach+d834e/e919f>
$15; 72756f73 <__crc_generic_make_request+1144ec/6a77e7>
$17; 80fd4cac <__crc_tcf_exts_destroy+7086d4/72f879>
$18; 8025baf0 <__crc_simple_transaction_release+1bada/c6e8a>
$19; 80fd4d28 <__crc_tcf_exts_destroy+708750/72f879>
$23; 80f36c00 <__crc_tcf_exts_destroy+66a628/72f879>
$25; 00426bc0 <__crc_notify_change+2f24b/1fc50f>
$28; 8025a000 <__crc_simple_transaction_release+19fea/c6e8a>
$29; 8025bac8 <__crc_simple_transaction_release+1bab2/c6e8a>
$30; 8025bc78 <__crc_simple_transaction_release+1bc62/c6e8a>
$31; 801a0d78 <ip_nat_setup_info+dc/59c>


PC; 801a0f18 <ip_nat_setup_info+27c/59c> <=====


-------------------- Got mcheck at 801a0f18 Cpu 0 $ 0 : 00000000 801f0000 c00042a8 000002a8 $ 4 : 801cc6f0 8faf4800 00000080 00000001 $ 8 : 0302a8c0 0102a8c0 8026fbc8 8026fbd0 $12 : 00ff0000 00000000 00000000 00000000 $16 : 00000055 80270cac 8026fbc8 80270d28 $20 : 00000001 00000001 00000000 80f36c00 $24 : 00000000 0044ffb4 $28 : 8026e000 8026fba0 8026fd50 801a0d78 Hi : 00000055 Lo : 0140d97a epc : 801a0f18 ip_nat_setup_info+0x27c/0x59c Not tainted ra : 801a0d78 ip_nat_setup_info+0xdc/0x59c Status: 10208403 KERNEL EXL IE Cause : 00800060 PrId : 0001800b

Index:  2 pgmask=4kb va=7fff6000 asid=09
                       [pa=00236000 c=3 d=0 v=0 g=0]
                       [pa=00fdb000 c=3 d=1 v=1 g=0]

Index: 12 pgmask=4kb va=10004000 asid=09
                       [pa=0023d000 c=3 d=1 v=0 g=0]
                       [pa=00fcc000 c=3 d=0 v=0 g=0]

Index: 13 pgmask=4kb va=2ab96000 asid=09
                       [pa=00d86000 c=3 d=0 v=1 g=0]
                       [pa=00000000 c=0 d=0 v=0 g=0]

Index: 14 pgmask=4kb va=00442000 asid=09
                       [pa=00c6f000 c=3 d=0 v=0 g=0]
                       [pa=00c70000 c=3 d=0 v=1 g=0]

Index: 15 pgmask=4kb va=00450000 asid=09
                       [pa=00c7d000 c=3 d=0 v=1 g=0]
                       [pa=00000000 c=0 d=0 v=0 g=0]

Kernel panic - not syncing: Caught Machine Check exception - caused by
multiple matching entries in the TLB.


$12; 00ff0000 <__crc_nf_ct_attach+d834e/e919f>
$17; 80270cac <__crc_simple_transaction_release+30c96/c6e8a>
$18; 8026fbc8 <__crc_simple_transaction_release+2fbb2/c6e8a>
$19; 80270d28 <__crc_simple_transaction_release+30d12/c6e8a>
$23; 80f36c00 <__crc_tcf_exts_destroy+66a628/72f879>
$25; 0044ffb4 <__crc_notify_change+5863f/1fc50f>
$28; 8026e000 <__crc_simple_transaction_release+2dfea/c6e8a>
$29; 8026fba0 <__crc_simple_transaction_release+2fb8a/c6e8a>
$30; 8026fd50 <__crc_simple_transaction_release+2fd3a/c6e8a>
$31; 801a0d78 <ip_nat_setup_info+dc/59c>


PC; 801a0f18 <ip_nat_setup_info+27c/59c> <=====


Kernel panic - not syncing: Caught Machine Check exception - caused by





--
Tomas Vrana  <tom@xxxxxxx>
--------------------------
VODA IT consulting, Borkovany 48, 691 75
http://www.voda.cz/
phone: +420 519 419 416 mobile: +420 603 469 305 UIN: 105142752







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