баг: LTP-4x (fw версии 3) kernel panic при логине

[d771]

Если не дождаться полной загрузки устройства, и попытаться залогиниться по telnet, то иногда можно словить вот такую панику:

Код: Выделить всё

LTP-4X login: Jan  1 00:01:25 LTP-4X pmchal: notice:   [PPPOEIA] PPPoE IA initialized successfully
Jan  1 00:01:25 LTP-4X pmchal: notice:   [DHCPRA] DHCP RA initialized successfully
Unable to handle kernel paging request at virtual address c08a02e0
pgd = 96410000
[c08a02e0] *pgd=00000000
Internal error: Oops: 5 [#1]
Modules linked in: mvPpDrv mvKernelExt
CPU: 0    Not tainted  (2.6.22.18 #1)
PC is at find_inode_fast+0x1c/0x70
LR is at ifind_fast+0x14/0x54
pc : [<801307c8>]    lr : [<80130830>]    psr: 20000013
sp : 96409ca8  ip : 96409cc8  fp : 96409cc4
r10: 40010ba0  r9 : 8088f740  r8 : c08a02e0
r7 : 00003013  r6 : 83dda000  r5 : c08a02e0  r4 : 00003013
r3 : 802c8034  r2 : 00003013  r1 : c08a02e0  r0 : 83dda000
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  Segment user
Control: 0005397f  Table: 16410000  DAC: 00000015
Process login (pid: 1594, stack limit = 0x96408268)
Stack: (0x96409ca8 to 0x9640a000)
9ca0:                   9e95f040 9e95f0b0 83dda000 83dda000 96409cdc 96409cc8
9cc0: 80130830 801307bc 98240db8 9e95f0b0 96409d0c 96409ce0 801308e4 8013082c
9ce0: 96409d0c 9e95f0b0 83dda000 98240db8 9e95f11c 96409f00 96409d78 96409d88
9d00: 96409d2c 96409d10 8015eea4 801308b8 83f6a4b8 fffffff4 98240db8 9e95f0b0
9d20: 96409d64 96409d30 80123d30 8015ee70 96409e3c 808b72a0 80200214 00000000
9d40: 96409f00 9e95f0b0 96409dc0 80931000 96409d88 00000001 96409dbc 96409d68
9d60: 8012490c 80123c78 96409e18 00000000 96409d94 00000101 01aedb89 00000004
9d80: 80931005 00000000 808b72a0 83f6a4b8 ffffffff 808db200 96409f00 80931000
9da0: 96409dc0 80931000 96408000 00000001 96409e2c 96409dc0 80124f14 80123fa8
9dc0: 83dde7d8 808b72a0 96408000 00900066 96409f34 00000101 00000001 00000000
9de0: 83f6ce28 83f6ce20 ffffffe8 80931000 96409f64 96409f40 8011ba84 80131ecc
9e00: 801234d0 00020001 00000000 809cc120 808db200 80931000 96409f00 00000000
9e20: 96409e3c 96409e30 80123e34 80124e94 96409e6c 96409e40 80125234 80123e20
9e40: 8011d614 8011d644 ffffff9c 80931000 00000001 96409f00 00020001 80931000
9e60: 96409e8c 96409e70 80125380 80124ff8 00020000 96409f00 00000004 ffffff9c
9e80: 96409ea4 96409e90 801253e8 80125338 00020001 00000000 96409ef4 96409ea8
9ea0: 80125de8 801253d4 00020001 801a5ac0 96409efc 00000000 00000004 00000000
9ec0: 000081a4 00000001 00000800 00020000 96409f00 00000004 ffffff9c 8002d674
9ee0: 96408000 80931000 96409f64 96409ef8 8011b89c 80125d7c 96409f00 800ae018
9f00: 83f6a4b8 808b72a0 96408000 00900066 96409f34 00000101 00000001 00000000
9f20: 83f6ce28 83f6ce20 ffffffe8 80931000 96409f64 96409f40 8011ba84 80131ecc
9f40: 801234d0 00020001 00000000 809cc120 00020000 00000000 96409f94 96409f68
9f60: 8011bc18 8011b880 800ad51c 95fc55c0 00000000 00000000 0000d8a4 00000005
9f80: 8002d674 00900005 96409fa4 96409f98 8011bcd4 8011bbd0 00000000 96409fa8
9fa0: 8002ce80 8011bcbc 00000000 00000000 0000d8a4 00020000 00000000 00000000
9fc0: 00000000 00000000 0000d8a4 00000000 00000000 00000000 40187000 7e8319c4
9fe0: 00000000 7e82f988 4013953c 4011f710 60000010 0000d8a4 00000000 00000000
Backtrace:
[<801307ac>] (find_inode_fast+0x0/0x70) from [<80130830>] (ifind_fast+0x14/0x54)
 r6:83dda000 r5:83dda000 r4:9e95f0b0
[<8013081c>] (ifind_fast+0x0/0x54) from [<801308e4>] (iget_locked+0x3c/0x12c)
 r4:9e95f0b0
[<801308a8>] (iget_locked+0x0/0x12c) from [<8015eea4>] (ext2_lookup+0x44/0x90)
[<8015ee60>] (ext2_lookup+0x0/0x90) from [<80123d30>] (do_lookup+0xc8/0x1a8)
 r6:9e95f0b0 r5:98240db8 r4:fffffff4
[<80123c68>] (do_lookup+0x0/0x1a8) from [<8012490c>] (__link_path_walk+0x974/0xeec)
[<80123f98>] (__link_path_walk+0x0/0xeec) from [<80124f14>] (link_path_walk+0x90/0x164)
[<80124e84>] (link_path_walk+0x0/0x164) from [<80123e34>] (path_walk+0x24/0x28)
 r7:00000000 r6:96409f00 r5:80931000 r4:808db200
[<80123e10>] (path_walk+0x0/0x28) from [<80125234>] (do_path_lookup+0x24c/0x27c)
[<80124fe8>] (do_path_lookup+0x0/0x27c) from [<80125380>] (__path_lookup_intent_open+0x58/0x9c)
[<80125328>] (__path_lookup_intent_open+0x0/0x9c) from [<801253e8>] (path_lookup_open+0x24/0x2c)
 r7:ffffff9c r6:00000004 r5:96409f00 r4:00020000
[<801253c4>] (path_lookup_open+0x0/0x2c) from [<80125de8>] (open_namei+0x7c/0x6d4)
[<80125d6c>] (open_namei+0x0/0x6d4) from [<8011b89c>] (do_filp_open+0x2c/0x50)
[<8011b870>] (do_filp_open+0x0/0x50) from [<8011bc18>] (do_sys_open+0x58/0xec)
 r5:00000000 r4:00020000
[<8011bbc0>] (do_sys_open+0x0/0xec) from [<8011bcd4>] (sys_open+0x28/0x2c)
[<8011bcac>] (sys_open+0x0/0x2c) from [<8002ce80>] (ret_fast_syscall+0x0/0x2c)
Code: e24dd004 e1a06000 e1a05001 e1a04002 (e5950000)
Kernel panic - not syncing: Fatal exception
Rebooting in 1 seconds..Reseting !!


Прошивка 3.24.1.107

[AKharchenko]

Здравствуйте. Проверим этот случай.
Проблема наблюдается только при неполной загрузке?

[AKharchenko]

Опишите, как воспроизводите данный баг. Как часто словить можно?

[d771]

Воспроизводилось раз 6 за 2 месяца, но специально воссоздать баг не пробовал.
Только при неполной загрузке, когда еще лампочки на pon-портах не горят, после загрузки ни разу не встречалось.

[AKharchenko]

Это было при дефолтной конфигурации? Если своя конфигурация, то хорошо бы на нее взглянуть.
Бэкап на tftp командой:

Код: Выделить всё

LTP-4X# copy fs://config tftp://192.168.1.20/backup.name

[d771]

Да, в том числе и на дефолтной.

также часто возникало на такой (это просто тестовый конфиг):

Код: Выделить всё

configure terminal
ip acs server ip "169.254.64.1"
ip acs server mask "255.255.252.0"
ip acs server vid "4094"
ip acs server enable
ip dhcp server enable
ip dhcp server range "169.254.64.2" "169.254.67.254"
ip snmp engineID "0xef20caf8234e12401216b17d85"
fan speed 27
fan min-speed 39
profile cross-connect "inet-isolated"
outer vid "1700"
user vid "1700"
mac-table-limit "1"
exit
profile cross-connect "acs"
outer vid "4094"
type "management"
exit
profile dba "ftth"
bandwidth guaranteed "2048"
bandwidth besteffort "200000"
exit
profile management "management-00"
url "http://169.254.64.1:9595/"
username "acs"
password "acsacs"
omci-configuration
exit
template "cust-ftth"
fec
service 0 profile cross-connect "inet-isolated"
service 0 profile dba "ftth"
service 1 profile cross-connect "acs"
service 1 profile dba "ftth"
profile management "management-00"
omci-error-tolerant
exit
gpon olt authentication "serial"
gpon olt encryption
gpon olt encryption key-update "7200"
interface gpon-port    0
fec
exit
interface gpon-port    1
fec
exit
interface gpon-port    2
fec
exit
interface gpon-port    3
fec
exit
interface ont 0/0
serial "ELTX020038D4"
template "cust-ftth"
exit
interface ont 0/1
serial "HWTCBD3A8005"
template "cust-ftth"
exit
interface ont 0/2
serial "CIGGA2357165"
fec
service 0 profile cross-connect "inet-isolated"
service 0 profile dba "ftth"
omci-error-tolerant
exit
interface ont 0/3
serial "DLNK8EE26A00"
template "cust-ftth"
exit
exit
commit
switch
configure
vlan 1700
name base_inet
tagged front-port 0
tagged front-port 1
tagged front-port 2
tagged front-port 3
tagged pon-port 0
tagged pon-port 1
tagged pon-port 2
tagged pon-port 3
exit
vlan 2188
name eci_vlan
tagged front-port 0
tagged front-port 1
tagged front-port 2
tagged front-port 3
tagged pon-port 0
tagged pon-port 1
tagged pon-port 2
tagged pon-port 3
exit
vlan 4094
name VLAN4094
tagged pon-port 0
tagged pon-port 1
tagged pon-port 2
tagged pon-port 3
exit
interface front-port 0
bridging to front-port 0
bridging to front-port 1
bridging to front-port 2
bridging to front-port 3
exit
interface front-port 1
bridging to front-port 0
bridging to front-port 1
bridging to front-port 2
bridging to front-port 3
exit
interface front-port 2
bridging to front-port 0
bridging to front-port 1
bridging to front-port 2
bridging to front-port 3
exit
interface front-port 3
bridging to front-port 0
bridging to front-port 1
bridging to front-port 2
bridging to front-port 3
exit
commit
exit
exit
acs
privates
delete param "voice1_enable"
add "voice1_enable" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.1.Enable" nocheck
delete param "voice1_number"
add "voice1_number" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.1.SIP.URI" nocheck
add "voice1_number" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.1.DirectoryNumber" nocheck
add "voice1_number" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.1.SIP.AuthUserName" nocheck
add "voice1_number" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.1.CallingFeatures.CallerIDName" nocheck
delete param "voice1_password"
add "voice1_password" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.1.SIP.AuthPassword" nocheck
delete param "voice2_enable"
add "voice2_enable" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.2.Enable" nocheck
delete param "voice2_number"
add "voice2_number" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.2.SIP.AuthUserName" nocheck
add "voice2_number" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.2.CallingFeatures.CallerIDName" nocheck
add "voice2_number" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.2.SIP.URI" nocheck
add "voice2_number" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.2.DirectoryNumber" nocheck
delete param "voice2_password"
add "voice2_password" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.Line.2.SIP.AuthPassword" nocheck
delete param "sip_proxy"
add "sip_proxy" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.SIP.ProxyServer" nocheck
add "sip_proxy" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.SIP.OutboundProxy" nocheck
add "sip_proxy" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.SIP.RegistrarServer" nocheck
add "sip_proxy" "InternetGatewayDevice.Services.VoiceService.1.VoiceProfile.1.SIP.UserAgentDomain" nocheck
delete param "ppp_login"
add "ppp_login" "InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.1.Username" nocheck
delete param "ppp_password"
add "ppp_password" "InternetGatewayDevice.WANDevice.1.WANConnectionDevice.1.WANPPPConnection.1.Password" nocheck
delete param "user_password"
add "user_password" "InternetGatewayDevice.X_BROADCOM_COM_LoginCfg.UserPassword" nocheck
delete param "admin_password"
add "admin_password" "InternetGatewayDevice.X_BROADCOM_COM_LoginCfg.AdminPassword" nocheck
delete param "wifi_enable"
add "wifi_enable" "InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.Enable" nocheck
delete param "wifi_ssid"
add "wifi_ssid" "InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.SSID" nocheck
delete param "wifi_encoding"
add "wifi_encoding" "InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.BeaconType" nocheck
delete param "wifi_password"
add "wifi_password" "InternetGatewayDevice.LANDevice.1.WLANConfiguration.1.PreSharedKey.1.KeyPassphrase" nocheck
exit
hardware
add hardware "NTP-2" manufacturer="Eltex" class="NTP-2" version="1v5:B+10"
add hardware "HG8240" manufacturer="Huawei Technologies Co., Ltd" class="HG8240" version="140C4410"
add hardware "HG8240" manufacturer="Huawei Technologies Co., Ltd" class="HG8240" version="140C4410"
exit
firmware
schedule
set daily "00:00" "23:59"
set weekly "1" "7"
set period "2011-06-01" "2099-12-31"
exit
exit
ont
add ont "ELTX020038D4" profile="0" hardware="NTP-2" config="Default"
add ont "48575443BD3A8005" profile="0" hardware="HG8240" config="Default"
exit
exit
exit