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SubjectRe: kernel 4.18.5 Realtek 8111G network adapter stops responding under high system load
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On 25.09.18 23:03, Heiner Kallweit wrote:
> It seems that all chip versions from 34 (= RTL8168E-VL) with the
> exception of version 39 (= RTL8106E, first sub-version) need
> bit TXCFG_AUTO_FIFO.
>
> And indeed, due to reordering of calls this bit is overwritten.
> Following patch moves setting the bit from the chip-specific
> hw_start function to rtl_set_tx_config_registers().
>
> Whoever is hit by the issue and has the option to build a kernel,
> could you please test whether the patch fixes the issue for you?

Hi,

Looks good so far! No problems for almost 24 hours. This is on a router/firewall that links various
sites via IPSec and other VPNs and has >10 network interfaces, 5 of which are Realtek ones.

Thanks,

Ortwin

# uname -a
Linux lofw 4.18.10+ #72 SMP PREEMPT Wed Sep 26 17:07:07 CEST 2018 x86_64 Intel(R) Core(TM) i5-7500
CPU @ 3.40GHz GenuineIntel GNU/Linux
# uptime
17:42:37 up 22:54, 1 user, load average: 0.48, 0.38, 0.30
# ifconfig wan
wan: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 81.7.230.226 netmask 255.255.255.248 broadcast 81.7.230.231
inet6 fe80::529a:4cff:fe2e:92be prefixlen 64 scopeid 0x20<link>
ether 50:9a:4c:2e:92:be txqueuelen 100 (Ethernet)
RX packets 56342905 bytes 40589502599 (37.8 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 54032328 bytes 44607761646 (41.5 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

# ifconfig lan
lan: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.11.1.1 netmask 255.255.255.0 broadcast 10.11.1.255
inet6 fe80::20a:cdff:fe31:6022 prefixlen 64 scopeid 0x20<link>
ether 00:0a:cd:31:60:22 txqueuelen 100 (Ethernet)
RX packets 54799469 bytes 43111097607 (40.1 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 55158558 bytes 35746992802 (33.2 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

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