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From: Ben Greear <greearb@candelatech.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Subject: How to let devcoredump know data has been read?
Date: Tue, 5 Jun 2018 15:27:28 -0700	[thread overview]
Message-ID: <6f54d11c-74a5-568a-ba1e-3f37edb28384@candelatech.com> (raw)

I have been testing ath10k on 4.16, which uses the devcoredump API
to notify about dumps.

I am able to see the binary crash dump at /sys/class/devcoredump/devcd2/data,
for instance, but if I do another crash quickly, I get no new uevent sent
and no new crash.

I see there is a 5 minute timer on the coredump data, but it also seems to indicate
that if I read the crash, the data should be cleared and ready to be
recreated again?  How do you notify the system that the crash data has
been read?

I tried 'cat' on the data file, but that did not seem to clear anything.

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

             reply	other threads:[~2018-06-05 22:27 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-05 22:27 Ben Greear [this message]
2018-06-05 22:53 ` How to let devcoredump know data has been read? Brian Norris
2018-06-06 17:04   ` Ben Greear
2018-06-06 19:02     ` Arend van Spriel
2018-06-06 19:08   ` Arend van Spriel

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