#20055: kmod-mt76 panics the kernel
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Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: packages | Version: Trunk
Keywords: mt76 |
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mt76 sometimes panics the kernel. tested on mt7612e, version 2015-06-15.
kernel - 3.18.17-1-cde5960fbf170da02eddb739ffd35f90
kmod-mt76 - 3.18.17+2015-06-15-1
{{{
<0>[90064.190000] skbuff: skb_over_panic: text:872d0998 len:1832 put:1832
head:872e5800 data:872e5820 tail:0x872e5f48 end:0x872e5f40 dev:<NULL>
<4>[90064.210000] Kernel bug detected[#1]:
<4>[90064.210000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.18.17 #1
<4>[90064.210000] task: 8032ec90 ti: 80328000 task.ti: 80328000
<4>[90064.210000] $ 0 : 00000000 00000001 0000007d 00000000
<4>[90064.210000] $ 4 : 8032db74 8032db74 8032de30 00000000
<4>[90064.210000] $ 8 : 3e4c4c55 303a646e 32373878 34663565
<4>[90064.210000] $12 : 00000000 00000000 00000000 770dc320
<4>[90064.210000] $16 : 878650c0 87259894 87259720 00000000
<4>[90064.210000] $20 : 000002f0 872e5800 00000040 87259850
<4>[90064.210000] $24 : 00000000 80191b9c
<4>[90064.210000] $28 : 80328000 80329cb0 00000728 801e388c
<4>[90064.210000] Hi : 00000000
<4>[90064.210000] Lo : ec4e4000
<4>[90064.210000] epc : 801e388c skb_panic+0x58/0x5c
<4>[90064.210000] Not tainted
<4>[90064.210000] ra : 801e388c skb_panic+0x58/0x5c
<4>[90064.210000] Status: 1100f403 KERNEL EXL IE
<4>[90064.210000] Cause : 50800024
<4>[90064.210000] PrId : 00019650 (MIPS 24KEc)
<4>[90064.210000] Modules linked in: pppoe ppp_async iptable_nat rt2800soc
rt2800pci rt2800mmio rt2800lib pppox ppp_generic nf_nat_ipv4
nf_conntrack_ipv6 nf_conntrack_ipv4 ipt_REJECT ipt_MASQUERADE xt_time
xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id
xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc rt2x00soc
rt2x00pci rt2x00mmio rt2x00lib nfnetlink nf_reject_ipv4
nf_nat_masquerade_ipv4 nf_nat_ftp nf_nat nf_log_ipv4 nf_defrag_ipv6
nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack_ftp nf_conntrack
iptable_raw iptable_mangle iptable_filter ip_tables crc_itu_t crc_ccitt
act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route
cls_fw sch_hfsc sch_ingress mt76pci mac80211 cfg80211 compat
ledtrig_usbdev xt_LED ledtrig_heartbeat ledtrig_gpio ip6t_REJECT
nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw ip6table_mangle
ip6table_filter ip6_tables x_tables bonding tun dm_crypt dm_mirror
dm_region_hash dm_log dm_mod ipv6 eeprom_93cx6 chainiv eseqiv xts
crypto_wq algif_skcipher algif_hash af_alg krng rng gf128mul cbc arc4
crypto_blkcipher usb_storage sd_mod scsi_mod ext4 jbd2 mbcache crc16
crypto_hash leds_gpio ohci_platform ohci_hcd ehci_platform ehci_hcd
gpio_button_hotplug usbcore nls_base usb_common
<4>[90064.210000] Process swapper (pid: 0, threadinfo=80328000,
task=8032ec90, tls=00000000)
<4>[90064.210000] Stack : 00000001 80306630 872d0998 00000728 00000728
872e5800 872e5820 872e5f48
<4>[90064.210000] 872e5f40 802fa8a8 ffffffff 801e38d8 00000004
00000000 ff000100 87259de8
<4>[90064.210000] 87259894 872d0998 00000101 00000000 00000000
00000000 87259864 87259858
<4>[90064.210000] 87259de8 8032e860 87259720 00000040 00000040
8032e868 80330000 80330000
<4>[90064.210000] 80301508 872d0ae0 00000000 00000000 87259720
87259894 87259720 87259de8
<4>[90064.210000] ...
<4>[90064.210000] Call Trace:
<4>[90064.210000] [<801e388c>] skb_panic+0x58/0x5c
<4>[90064.210000] [<801e38d8>] skb_put+0x48/0x50
<4>[90064.210000] [<872d0998>] mt76_kick_queue+0x2a8/0x434 [mt76pci]
<4>[90064.210000]
<4>[90064.210000]
<4>[90064.210000] Code: 24841178 0c011e4e 00603821 <000c000d> 8c830060
8c8200a0 0003182b 00030336 8c87005c
<4>[90064.480000] ---[ end trace 2332bd0dddbb8cc6 ]---
===================================
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/20055>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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