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From: Conrad Kostecki <ck+ath10k@bl4ckb0x.de>
To: Michal Kazior <michal.kazior@tieto.com>
Cc: ath10k@lists.infradead.org
Subject: Re: Re[2]: Linux freezes after a time while running
Date: Wed, 2 Nov 2016 10:00:19 +0100 (CET)	[thread overview]
Message-ID: <1233772075.6396.1478077219620@office.mailbox.org> (raw)
In-Reply-To: <CA+BoTQkyd2f78Pk=_FrYyuQXedn8t6EEYq6BWHB8zthOF_AZ6w@mail.gmail.com>

Hi!

> Michal Kazior <michal.kazior@tieto.com> hat am 2. November 2016 um 04:31 geschrieben:
> I suspect the pcie link gets broken one direction because attempting a
> cold reset did crash the host even harder.

What I can see, the WiFi runs stable, if nobody connects to it. The failure starts, when somebody connects and does some throughput.

> Looks like the device went into a very confused state due to pcie link
> failure starting from:

Well, I did a test and removed the Mikrotik RB14e, as it has a PLX chip and provides an extra pcie switch. Instead, I took a simple passive miniPCIe->PCIe adapter and build only one card into it. The problem still exists. So, the RB14e is not the cause at least.

>   [  691.609836] pcieport 0000:00:02.0: AER: Multiple Uncorrected
> (Non-Fatal) error received: id=0800

I see, so the firmware crash it not the cause, but the error reported by AER. Thanks for clarify!

> I'm not really familiar with these. Perhaps there's a pcie bridge
> problem on your host platform or maybe an electrical issue (e.g.
> insufficient power supply to handle short bursts?).

Well, the mainboard is microATX. So its powered by a Seasonic 400W passive PSU, but the whole system takes about 40-50w. So the PSU itself should be enough? ;-) IIRC PCIe should provide up to 75W?

I am out of ideas.. I know, a year ago, that cards were perfectly working. Even a test replacement shows the same errors, so it's not a defective card.

Cheers
Conrad

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  reply	other threads:[~2016-11-02  9:00 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-28 19:05 Linux freezes after a time while running Conrad Kostecki
2016-10-31 10:12 ` Michal Kazior
2016-10-31 16:48   ` Re[2]: " Conrad Kostecki
2016-11-02  3:31     ` Michal Kazior
2016-11-02  9:00       ` Conrad Kostecki [this message]
2016-11-02 15:27         ` Michal Kazior
2016-11-02 16:15           ` Conrad Kostecki
2016-11-02 17:24             ` Re[4]: " Conrad Kostecki
2016-11-07 13:38           ` Re[2]: " Conrad Kostecki
2016-11-07 16:43             ` Michal Kazior
2016-11-16 22:21               ` Re[4]: " Conrad Kostecki
2016-11-18 14:47                 ` Michal Kazior
2016-11-18 17:21                   ` Ben Greear
2016-11-18 20:55                   ` Re[6]: " Conrad Kostecki

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