another critical bug ?

[Denys]

Something more

With all kernel debug enabled it was not giving this panic (maybe cause 
system becomes too slow).

vanilla kernel 2.6.20.3 with htb patch applied, ethernet cards RTL8139

If u need anythign more - inform me. 

Not sure it is iproute2, but if you can, just point me to right direction, to 
who i need to report, it is also happening on interface flood, when i bring 
it down:

(some data not accepted by kernel maillist, changed to *)

Mar 28 22:14:36 OFFICE-PPPOE pppoe-server[1456]: Session 1 closed for client 
00:16:ec:7e:47:ea (172.16.102.2) on eth1
Mar 28 22:14:36 OFFICE-PPPOE pppoe-server[1456]: Sent PADT
Mar 28 22:14:36 OFFICE-PPPOE pppoe-server[1456]: PADT: Generic-Error: **
Mar 28 22:14:36 OFFICE-PPPOE pppoe-server[1456]: PADT: Generic-Error: 
Received PADT from peer
Mar 28 22:14:36 OFFICE-PPPOE pppoe-server[1456]: PADT: Generic-Error: 
*
Mar 28 22:14:36 OFFICE-PPPOE pppoe-server[1456]: Sent PADT
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.148236] BUG: unable to handle kernel 
paging request
Mar 28 20:13:29 OFFICE-PPPOE at virtual address 5b5a596c
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.148497]  printing eip:
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.148625] *pde = 
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.148743] Oops:  [#1]
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.148798]
Mar 28 20:13:29 OFFICE-PPPOE SMP
Mar 28 20:13:29 OFFICE-PPPOE
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.148992] Modules linked in:
Mar 28 20:13:29 OFFICE-PPPOE netconsole
Mar 28 20:13:29 OFFICE-PPPOE xt_mac
Mar 28 20:13:29 OFFICE-PPPOE xt_tcpmss
Mar 28 20:13:29 OFFICE-PPPOE ipt_TCPMSS
Mar 28 20:13:29 OFFICE-PPPOE ipt_REJECT
Mar 28 20:13:29 OFFICE-PPPOE ts_bm
Mar 28 20:13:29 OFFICE-PPPOE xt_string
Mar 28 20:13:29 OFFICE-PPPOE ipt_ttl
Mar 28 20:13:29 OFFICE-PPPOE ifb
Mar 28 20:13:29 OFFICE-PPPOE iptable_mangle
Mar 28 20:13:29 OFFICE-PPPOE xt_MARK
Mar 28 20:13:29 OFFICE-PPPOE xt_mark
Mar 28 20:13:29 OFFICE-PPPOE pppoe
Mar 28 20:13:29 OFFICE-PPPOE pppox
Mar 28 20:13:29 OFFICE-PPPOE ppp_generic
Mar 28 20:13:29 OFFICE-PPPOE slhc
Mar 28 20:13:29 OFFICE-PPPOE xt_tcpudp
Mar 28 20:13:29 OFFICE-PPPOE em_nbyte
Mar 28 20:13:29 OFFICE-PPPOE cls_tcindex
Mar 28 20:13:29 OFFICE-PPPOE act_gact
Mar 28 20:13:29 OFFICE-PPPOE cls_rsvp
Mar 28 20:13:29 OFFICE-PPPOE sch_htb
Mar 28 20:13:29 OFFICE-PPPOE cls_fw
Mar 28 20:13:29 OFFICE-PPPOE act_mirred
Mar 28 20:13:29 OFFICE-PPPOE em_u32
Mar 28 20:13:29 OFFICE-PPPOE sch_red
Mar 28 20:13:29 OFFICE-PPPOE sch_sfq
Mar 28 20:13:29 OFFICE-PPPOE sch_tbf
Mar 28 20:13:29 OFFICE-PPPOE sch_teql
Mar 28 20:13:29 OFFICE-PPPOE cls_basic
Mar 28 20:13:29 OFFICE-PPPOE sch_gred
Mar 28 20:13:29 OFFICE-PPPOE act_pedit
Mar 28 20:13:29 OFFICE-PPPOE sch_hfsc
Mar 28 20:13:29 OFFICE-PPPOE cls_rsvp6
Mar 28 20:13:29 OFFICE-PPPOE sch_ingress
Mar 28 20:13:29 OFFICE-PPPOE em_meta
Mar 28 20:13:29 OFFICE-PPPOE em_text
Mar 28 20:13:29 OFFICE-PPPOE act_ipt
Mar 28 20:13:29 OFFICE-PPPOE sch_dsmark
Mar 28 20:13:29 OFFICE-PPPOE sch_prio
Mar 28 20:13:29 OFFICE-PPPOE sch_netem
Mar 28 20:13:29 OFFICE-PPPOE act_simple
Mar 28 20:13:29 OFFICE-PPPOE cls_u32
Mar 28 20:13:29 OFFICE-PPPOE em_cmp
Mar 28 20:13:29 OFFICE-PPPOE sch_cbq
Mar 28 20:13:29 OFFICE-PPPOE cls_route
Mar 28 20:13:29 OFFICE-PPPOE iptable_nat
Mar 28 20:13:29 OFFICE-PPPOE nf_conntrack_ipv4
Mar 28 20:13:29 OFFICE-PPPOE ipt_LOG
Mar 28 20:13:29 OFFICE-PPPOE ipt_MASQUERADE
Mar 28 20:13:29 OFFICE-PPPOE ipt_REDIRECT
Mar 28 20:13:29 OFFICE-PPPOE nf_nat
Mar 28 20:13:29 OFFICE-PPPOE nf_conntrack
Mar 28 20:13:29 OFFICE-PPPOE nfnetlink
Mar 28 20:13:29 OFFICE-PPPOE iptable_filter
Mar 28 20:13:29 OFFICE-PPPOE ip_tables
Mar 28 20:13:29 OFFICE-PPPOE x_tables
Mar 28 20:13:29 OFFICE-PPPOE 8021q
Mar 28 20:13:29 OFFICE-PPPOE tun
Mar 28 20:13:29 OFFICE-PPPOE via_velocity
Mar 28 20:13:29 OFFICE-PPPOE via_rhine
Mar 28 20:13:29 OFFICE-PPPOE sis900
Mar 28 20:13:29 OFFICE-PPPOE ne2k_pci
Mar 28 20:13:29 OFFICE-PPPOE 8390
Mar 28 20:13:29 OFFICE-PPPOE skge
Mar 28 20:13:29 OFFICE-PPPOE tg3
Mar 28 20:13:29 OFFICE-PPPOE 8139too
Mar 28 20:13:29 OFFICE-PPPOE e1000
Mar 28 20:13:29 OFFICE-PPPOE e100
Mar 28 20:13:29 OFFICE-PPPOE block2mtd
Mar 28 20:13:29 OFFICE-PPPOE usb_storage
Mar 28 20:13:29 OFFICE-PPPOE mtdblock
Mar 28 20:13:29 OFFICE-PPPOE mtd_blkdevs
Mar 28 20:13:29 OFFICE-PPPOE usbhid
Mar 28 20:13:29 OFFICE-PPPOE uhci_hcd
Mar 28 20:13:29 OFFICE-PPPOE ehci_hcd
Mar 28 20:13:29 OFFICE-PPPOE ohci_hcd
Mar 28 20:13:29 OFFICE-PPPOE usbcore
Mar 28 20:13:29 OFFICE-PPPOE
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.153713] CPU:0
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.153716] EIP:0060:[c02113c7]Not 
tainted VLI
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.153718] EFLAGS: 00010202   (2.6.20.3-
build-0005 #18)
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.153949] EIP is at netif_rx+0x18/0x126
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.154009] eax: c0c42800   ebx: 5b5a5958   
ecx: 0001   edx: c6541c80
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.154073] esi: c0319800   edi: c6541c80   
ebp: c02f5f14   esp: c02f5f04
Mar 28 20:13:29 OFFICE-PPPOE [ 1758.154135] 

another critical bug ?

[Denys]

Tried on 2.6.21-rc5-git3, but preempt enabled
Same panic, same place seems

Mar 29 02:50:53 LINUX [  164.644102] BUG: unable to handle kernel paging 
request
Mar 29 02:50:53 LINUX at virtual address 0302014c
Mar 29 02:50:53 LINUX [  164.644242]  printing eip:
Mar 29 02:50:53 LINUX [  164.644301] *pde = 
Mar 29 02:50:53 LINUX [  164.644371] Oops:  [#1]
Mar 29 02:50:53 LINUX [  164.644485] PREEMPT
Mar 29 02:50:53 LINUX SMP
Mar 29 02:50:53 LINUX
Mar 29 02:50:53 LINUX [  164.644629] Modules linked in:
 LIST OF MODULES 
Mar 29 02:50:53 LINUX [  164.648758] CPU:0
Mar 29 02:50:53 LINUX [  164.648760] EIP:0060:[c0216e37]Not tainted 
VLI
Mar 29 02:50:53 LINUX [  164.648762] EFLAGS: 00010206   (2.6.20.3-build-0002 
#14)
Mar 29 02:50:53 LINUX [  164.648948] EIP is at netif_rx+0x12/0x115
Mar 29 02:50:53 LINUX [  164.649011] eax: c33fb000   ebx: 03020100   ecx: 
0001   edx: c3380d80
Mar 29 02:50:53 LINUX [  164.649078] esi: c4cfc000   edi: c3380d80   ebp: 
   esp: c7fb7f74
Mar 29 02:50:53 LINUX [  164.649144] ds: 007b   es: 007b   ss: 0068   
preempt: 0001
Mar 29 02:50:53 LINUX [  164.649210] Process softirq-tasklet (pid: 9, 
ti=c7fb6000 task=c7f9f000 task.ti=c7fb6000)
Mar 29 02:50:53 LINUX
Mar 29 02:50:53 LINUX [  164.649276] Stack:
Mar 29 02:50:53 LINUX c4cfc400
Mar 29 02:50:53 LINUX c4cfc000
Mar 29 02:50:53 LINUX 
Mar 29 02:50:53 LINUX c8a1f268
Mar 29 02:50:53 LINUX c4cfc45c
Mar 29 02:50:53 LINUX 000f4240
Mar 29 02:50:53 LINUX 
Mar 29 02:50:53 LINUX c011c5d8
Mar 29 02:50:53 LINUX
Mar 29 02:50:53 LINUX [  164.649754]
Mar 29 02:50:53 LINUX c7fb7fac
Mar 29 02:50:53 LINUX c026ba53
Mar 29 02:50:53 LINUX 0006
Mar 29 02:50:53 LINUX c11c5c98
Mar 29 02:50:53 LINUX c11c5c98
Mar 29 02:50:53 LINUX 0020
Mar 29 02:50:53 LINUX c011cadf
Mar 29 02:50:53 LINUX c011cbc9
Mar 29 02:50:53 LINUX
Mar 29 02:50:53 LINUX [  164.650231]
Mar 29 02:50:53 LINUX 
Mar 29 02:50:53 LINUX 0001
Mar 29 02:50:53 LINUX c7fb7fc0
Mar 29 02:50:53 LINUX 0032
Mar 29 02:50:53 LINUX c11c5c98
Mar 29 02:50:53 LINUX c7fa1ef8
Mar 29 02:50:53 LINUX c0128757
Mar 29 02:50:53 LINUX 
Mar 29 02:50:53 LINUX
Mar 29 02:50:53 LINUX [  164.650707] Call Trace:
Mar 29 02:50:53 LINUX [  164.650829]  [c8a1f268]
Mar 29 02:50:53 LINUX ri_tasklet+0xd5/0x1a1 [ifb]
Mar 29 02:50:53 LINUX [  164.650954]  [c011c5d8]
Mar 29 02:50:53 LINUX __tasklet_action+0xe5/0x126
Mar 29 02:50:53 LINUX [  164.651073]  [c026ba53]
Mar 29 02:50:53 LINUX schedule+0xe0/0xfa
Mar 29 02:50:53 LINUX [  164.651201]  [c011cadf]
Mar 29 02:50:53 LINUX ksoftirqd+0x0/0x178
Mar 29 02:50:53 LINUX [  164.651312]  [c011cbc9]
Mar 29 02:50:53 LINUX ksoftirqd+0xea/0x178
Mar 29 02:50:53 LINUX [  164.651443]  [c0128757]
Mar 29 02:50:53 LINUX kthread+0xb2/0xdb
Mar 29 02:50:53 LINUX [  164.651560]  [c01286a5]
Mar 29 02:50:53 LINUX kthread+0x0/0xdb
Mar 29 02:50:53 LINUX [  164.651683]  [c0103a5f]
Mar 29 02:50:53 LINUX kernel_thread_helper+0x7/0x10
Mar 29 02:50:53 LINUX [  164.651823]  ===
Mar 29 02:50:53 LINUX [  164.651890] Code:
Mar 29 02:50:53 LINUX 00
Mar 29 02:50:53 LINUX eb
Mar 29 02:50:53 LINUX 0c
Mar 29 02:50:53 LINUX 89
Mar 29 02:50:53 LINUX d8
Mar 29 02:50:53 LINUX e8
Mar 29 02:50:53 LINUX 7a
Mar 29 02:50:53 LINUX 5e
Mar 29 02:50:53 LINUX 05
Mar 29 02:50:53 LINUX 00
Mar 29 02:50:53 LINUX e9
Mar 29 02:50:53 LINUX bb
Mar 29 02:50:53 LINUX fe
Mar 29 02:50:53 LINUX ff
Mar 29 02:50:53 LINUX ff
Mar 29 02:50:53 LINUX 83
Mar 29 02:50:53 LINUX c4
Mar 29 02:50:53 LINUX 14
Mar 29 02:50:53 LINUX 89
Mar 29 02:50:53 LINUX f0
Mar 29 02:50:53 LINUX 5b
Mar 29 02:50:53 LINUX 5e
Mar 29 02:50:53 LINUX 5f
Mar 29 02:50:53 LINUX 5d
Mar 29 02:50:53 LINUX c3
Mar 29 02:50:53 LINUX 57
Mar 29 02:50:53 LINUX 89
Mar 29 02:50:53 LINUX c7
Mar 29 02:50:53 LINUX 56
Mar 29 02:50:53 LINUX 53
Mar 29 02:50:53 LINUX 8b
Mar 29 02:50:53 LINUX 40
Mar 29 02:50:53 LINUX 14
Mar 29 02:50:53 LINUX 8b
Mar 29 02:50:53 LINUX 98
Mar 29 02:50:53 LINUX e4
Mar 29 02:50:53 LINUX 02
Mar 29 02:50:53 LINUX 00
Mar 29 02:50:53 LINUX 00
Mar 29 02:50:53 LINUX 85
Mar 29 02:50:53 LINUX db
Mar 29 02:50:53 LINUX 74
Mar 29 02:50:53 LINUX 32
Mar 29 02:50:53 LINUX
Mar 29 02:50:53 LINUX 7b
Mar 29 02:50:53 LINUX 4c
Mar 29 02:50:53 LINUX 00
Mar 29 02:50:53 LINUX 75
Mar 29 02:50:53 LINUX 06
Mar 29 02:50:53 LINUX 83
Mar 29 02:50:53 LINUX 7b
Mar 29 02:50:53 LINUX 28
Mar 29 02:50:53 LINUX 00
Mar 29 02:50:53 LINUX 74
Mar 29 02:50:53 LINUX 26
Mar 29 02:50:53 LINUX 8d
Mar 29 02:50:53 LINUX 73
Mar 29 02:50:53 LINUX 2c
Mar 29 02:50:53 LINUX 89
Mar 29 02:50:53 LINUX f0
Mar 29 02:50:53 LINUX e8
Mar 29 02:50:53 LINUX 65
Mar 29 02:50:53 LINUX 5e
Mar 29 02:50:53 LINUX 05
Mar 29 02:50:53 LINUX
Mar 29 02:50:53 LINUX [  164.654978] EIP: [c0216e37]
Mar 29 02:50:53 LINUX netif_rx+0x12/0x115
Mar 29 02:50:53 LINUX SS:ESP 0068:c7fb7f74
Mar 29 02:50:53 LINUX [  164.655137]
Mar 29 02:50:53 LINUX Kernel panic - not syncing: Fatal exception
Mar 29 02:50:53 LINUX [  164.655280]  [c0118387]
Mar 29