Hi,
I've just hit following crash on my TP Link Archer C7 v5 with QCA9880,
running latest OpenWrt with 4.14.109 (4.19.23-1 backports) and qca988x-ct
firmware:
skbuff: skb_over_panic: text:87622780 len:360 put:360 head: (null) data:
(null) tail:0x168 end:0x0 dev:<NULL>
Kernel bug detected[#1]:
CPU: 0 PID: 0 Comm: swapper Not tainted 4.14.109 #0
task: 804e5490 task.stack: 804e0000
$ 0 : 00000000 00000001 0000006f 00000000
$ 4 : 804ea7d8 804ea7d8 804f1a50 000085c8
$ 8 : 00000000 00000000 00000007 00000000
$12 : 000001c1 efec8fad 000001c0 00000000
$16 : 00000000 87551bf8 87263054 00000416
$20 : 875514e0 87c07dc0 87551bf8 00000000
$24 : 00000002 80279994
$28 : 804e0000 87c07d40 8765d994 802f4bd0
Hi : 00000000
Lo : ec4e4000
epc : 802f4bd0 skb_panic+0x58/0x5c
ra : 802f4bd0 skb_panic+0x58/0x5c
Status: 1100dc03 KERNEL EXL IE
Cause : 00800024 (ExcCode 09)
PrId : 00019750 (MIPS 74Kc)
Modules linked in: ath9k ath9k_common ath9k_hw ath10k_pci ath10k_core ath
mac80211 iptable_nat iptable_mangle iptable_filter ipt_REJECT ipt_MASQUERADE
ip_tables cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark
xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG
xt_FLOWOFFLOAD xt_CT x_tables nf_reject_ipv4 nf_nat_redirect
nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4
nf_log_common nf_flow_table_hw nf_flow_table nf_defrag_ipv4
nf_conntrack_rtcache nf_conntrack compat ledtrig_usbport tun ehci_platform
ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
Process swapper (pid: 0, threadinfo=804e0000, task=804e5490, tls=00000000)
Stack : 80501cc0 8041f040 87622780 00000168 00000168 00000000 00000000 00000168
00000000 804b209c 00001770 802f4c60 87490000 87649118 804fcbf4 00000900
01080020 87622780 00000900 875514e0 875578c4 804e0000 00000000 00000000
fffffffb 87c07dc4 87551cdc 804e0000 875514e0 804e0000 00000000 00000004
87263054 87263054 00000001 00000034 87465180 8755777c 87465b40 87660000
...
Call Trace:
[<802f4bd0>] skb_panic+0x58/0x5c
[<802f4c60>] skb_put+0x48/0x54
[<87622780>] ath10k_htt_t2h_msg_handler+0x27e0/0x31dc [ath10k_core]
[<8764901c>] ath10k_ce_rx_update_write_idx+0x9c/0xc4 [ath10k_core]
Code: 00602825 0c02ce18 248433d4 <000c000d> 8c8200ac 8c88005c 8c8700a8
00451023 01054021
---[ end trace 6b934e1b587e6bcd ]---
Kernel panic - not syncing: Fatal exception in interrupt
Rebooting in 3 seconds..
I've looked at the git log till 5.1-rc3 for htt_rx.c and ce.c, but couldn't
find anything possibly related to this issue, so I'm wondering if this is known
and already fixed bug. Thanks for any pointers!
-- ynezz
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