From: Sven Eckelmann <sven@narfation.org>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: Bob Copeland <me@bobcopeland.com>, andy <lgkbiti@163.com>,
linux-wireless@vger.kernel.org
Subject: Re: wifi driver crashes openwrt device
Date: Wed, 18 May 2016 11:27:48 +0200 [thread overview]
Message-ID: <7546204.U6Dr6cmRjt@bentobox> (raw)
In-Reply-To: <87d1omp6o0.fsf@purkki.adurom.net>
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On Monday 16 May 2016 14:46:07 Kalle Valo wrote:
[...]
> Didn't openwrt have a some sort ramoops facility to collect the last
> kernel logs before a crash? I don't recall the name right now but I'm
> pretty sure I used it with one of our APs few years back. That might
> help (or not).
He can just check if /sys/kernel/debug/crashlog exists after the device
crashed+rebooted.
I would also be good to have CONFIG_KERNEL_KALLSYMS=y set and compile the
kernel+modules with "KBUILD_CFLAGS += -fno-optimize-sibling-calls" to get
a (slightly) readable calltrace on things like MIPS.
Kind regards,
Sven
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prev parent reply other threads:[~2016-05-18 9:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 15:17 wifi driver crashes openwrt device andy
2016-05-15 17:47 ` Bob Copeland
2016-05-16 11:46 ` Kalle Valo
2016-05-18 9:27 ` Sven Eckelmann [this message]
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