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FS#3570 - mac80211/ath9k crash #8617

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openwrt-bot opened this issue Jan 11, 2021 · 2 comments
Closed

FS#3570 - mac80211/ath9k crash #8617

openwrt-bot opened this issue Jan 11, 2021 · 2 comments
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@openwrt-bot
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acoul:

  • Device problem occurs on mac80211/ath9k
  • Software versions: OpenWrt SNAPSHOT, r15475-c625c821d1
  • Steps to reproduce install kmod-ath9k. Oops occurs after association with AP

this is on my alix/x86 board with an Qualcomm Atheros AR922X Wireless Network Adapter

this is possibly related to commit [[https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=3a12c6679eb184ca2a9a2b1266cc2d41f3f00bad|mac80211: replace legacy minstrel with minstrel_ht, improve rate selection]]

sometimes the device reboots. if the device doesn't boot, the wifi link is still functional and ping works

@openwrt-bot
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acoul:

the offending patch is [[https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=package/kernel/mac80211/patches/subsys/343-mac80211-minstrel_ht-fix-max-probability-rate-select.patch;h=a0b918c9a1ef3e60750d4d6cc740fa190beb9dd5;hb=3a12c6679eb184ca2a9a2b1266cc2d41f3f00bad|343-mac80211-minstrel_ht-fix-max-probability-rate-select.patch]]

reverting just that patch, fixes the issue

@openwrt-bot
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acoul:

commit [[https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=faeaf5a01025edc13b83c90a724d8bff18ab2279|mac80211: fix an uninitialized stack variable in the minstrel]] fixes this issue.

that was a quick one Felix++

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