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FS#2384 - Asus WL500GP V2 crash #8387

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openwrt-bot opened this issue Jul 14, 2019 · 4 comments
Closed

FS#2384 - Asus WL500GP V2 crash #8387

openwrt-bot opened this issue Jul 14, 2019 · 4 comments
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@openwrt-bot
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zloster:

Supply the following if possible:

  • Device problem occurs on - Asus WL500GP V2;
  • Software versions of OpenWrt/LEDE - OpenWrt 18.06.4, r7808-ef686b7292
  • Steps to reproduce - I'm not sure, just a higher load and utilizing the wireless connection. For example I'm loading the LuCi realtime graphs in the browser and start downloading a file from the local network.

I'm attaching a crashlog obtained via cat /sys/kernel/debug/crashlog. There seems to be a hint for the problem:

<4>[461295.961960] Unhandled kernel unaligned access[#1]:
<4>[461295.967070] CPU: 0 PID: 1299 Comm: irq/5-b43 Not tainted 4.14.131 #0
<4>[461295.973745] task: 80e62680 task.stack: 80e6c000
<4>[461295.978525] $ 0 : 00000000 1000f800 00000001 00000000
<4>[461295.984061] $ 4 : ea1d3f8d 00000022 40005000 00000000
<4>[461295.989598] $ 8 : 80abebd8 00000000 00000002 00000057
<4>[461295.995136] $12 : 0000be9e 00008cc6 00001f00 00000000
<4>[461296.000673] $16 : 00000000 80abf50c 80abf4e0 80e5cd80
<4>[461296.006210] $20 : 00000001 80d77c80 00000000 8041b944
<4>[461296.011747] $24 : 00000000 8024d010
<4>[461296.017285] $28 : 80e6c000 80e6d930 80420000 80262264
<4>[461296.022823] Hi : 00000000
<4>[461296.025899] Lo : 002457e0
<4>[461296.028984] epc : 80262e70 0x80262e70
<4>[461296.033055] ra : 80262264 0x80262264
<4>[461296.037115] Status: 1000f803 KERNEL EXL IE
<4>[461296.041563] Cause : 00800010 (ExcCode 04)
<4>[461296.045807] BadVA : ea1d3fa1
<4>[461296.048884] PrId : 00029029 (Broadcom BMIPS3300)

@openwrt-bot
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ynezz:

Is this a regression? I mean, 18.06.2 was working fine on this device and the problem happens only with upgrade to 18.06.4? Please also try to reproduce this problem with the latest snapshot image http://downloads.openwrt.org/snapshots/targets/brcm47xx/legacy/ and provide the crashlog again

@openwrt-bot
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phr3ak:

I can confirm. Crash on higher load. WL-500GP v1 is also affected. I can reproduce it with some speedtest.net tests. pppoe + ethernet connection at LAN side. 18.06.4 and snapshot are also affected.

OpenWrt SNAPSHOT, r10560-04cb651376

root@OpenWrt:~# uname -a
Linux OpenWrt 4.14.132 #0 Fri Jul 19 20:11:15 2019 mips GNU/Linux

@openwrt-bot
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diizzyy:

This is most likely related to memory starvation, this device has 32Mbyte of memory and there are several reports of LuCI, opkg etc running out of memory on similar devices.

@openwrt-bot
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phr3ak:

I don't use LuCI. free reports available memory. unaligned access is not happening because of not enough memory.

<4>[461295.961960] Unhandled kernel unaligned access[#1]:

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