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Re: [PATCH 3.19] ath9k: fix race condition in irq processing during hardware reset

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Rico Derrer <rico.derrer@xxxxxxxxxxx> writes:

>>> This part completely blocks the system on a AR9350. Loading the
>>> module works but configuring it hangs the system until watchdog
>>> restarts it.
>>
>> What kernel/software are you running on there? When I committed this
>> patch to OpenWrt, it uncovered IRQ handling bugs in MIPS kernel code
>> (both generic and in the ath79 platform code).
>> 
>> You can find the fixes that I've made here:
>> http://git.openwrt.org/?p=openwrt.git;a=blob_plain;f=target/linux/generic/patches-3.14/130-mips_cpu_irq_disable.patch
>> http://git.openwrt.org/?p=openwrt.git;a=blob_plain;f=target/linux/ar71xx/patches-3.14/736-MIPS-ath79-fix-chained-irq-disable.patch
>> 
>> I've already submitted the first one to linux-mips.
>
> Thank you, these patches fixed the problem.

Thanks for confirming that, makes it a lot safer for me to apply the
patch.

-- 
Kalle Valo
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