From: David Miller <davem@davemloft.net>
To: alex.aring@gmail.com
Cc: alex.bluesman.smirnov@gmail.com, dbaryshkov@gmail.com,
linux-zigbee-devel@lists.sourceforge.net, netdev@vger.kernel.org
Subject: Re: [PATCH net] at86rf230: mask irq's before deregister device
Date: Mon, 31 Mar 2014 16:43:34 -0400 (EDT) [thread overview]
Message-ID: <20140331.164334.791905030722014681.davem@davemloft.net> (raw)
In-Reply-To: <1396229211-9146-1-git-send-email-alex.aring@gmail.com>
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 31 Mar 2014 03:26:51 +0200
> While transmit over a at86rf231 device and unloading the module I got:
>
> [ 29.643073] WARNING: CPU: 0 PID: 3 at kernel/workqueue.c:1335 __queue_work+0xb4/0x224()
> [ 29.651457] Modules linked in: at86rf230(-) autofs4
> [ 29.656612] CPU: 0 PID: 3 Comm: ksoftirqd/0 Tainted: G W 3.14.0-rc6-01602-g902659e-dirty #294
> [ 29.666490] [<c00124f0>] (unwind_backtrace) from [<c0010ad0>] (show_stack+0x10/0x14)
> [ 29.674628] [<c0010ad0>] (show_stack) from [<c0032c80>] (warn_slowpath_common+0x60/0x80)
> [ 29.683116] [<c0032c80>] (warn_slowpath_common) from [<c0032d30>] (warn_slowpath_null+0x18/0x20)
> [ 29.692329] [<c0032d30>] (warn_slowpath_null) from [<c0045b08>] (__queue_work+0xb4/0x224)
> [ 29.700906] [<c0045b08>] (__queue_work) from [<c0045cc8>] (queue_work_on+0x50/0x78)
> [ 29.708944] [<c0045cc8>] (queue_work_on) from [<c05669cc>] (mac802154_tx+0x1e4/0x240)
> [ 29.717164] [<c05669cc>] (mac802154_tx) from [<c0471814>] (dev_hard_start_xmit+0x2f0/0x43c)
> [ 29.725926] [<c0471814>] (dev_hard_start_xmit) from [<c04878d0>] (sch_direct_xmit+0x64/0x2a0)
> [ 29.734867] [<c04878d0>] (sch_direct_xmit) from [<c0487c38>] (__qdisc_run+0x12c/0x18c)
> [ 29.743169] [<c0487c38>] (__qdisc_run) from [<c046e1b0>] (net_tx_action+0xe0/0x178)
> [ 29.751205] [<c046e1b0>] (net_tx_action) from [<c0036690>] (__do_softirq+0x100/0x264)
> [ 29.759420] [<c0036690>] (__do_softirq) from [<c0036818>] (run_ksoftirqd+0x24/0x4c)
> [ 29.767453] [<c0036818>] (run_ksoftirqd) from [<c005232c>] (smpboot_thread_fn+0x128/0x13c)
> [ 29.776121] [<c005232c>] (smpboot_thread_fn) from [<c004c3fc>] (kthread+0xd0/0xe4)
> [ 29.784061] [<c004c3fc>] (kthread) from [<c000da88>] (ret_from_fork+0x14/0x2c)
> [ 29.791628] ---[ end trace 3406ff24bd973834 ]---
>
> The problem is there are still interrupts after deregister ieee802154
> device. This patch mask all interrupts in the at86rf2xx chips before
> deregister the device.
>
> Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Applied, thanks.
prev parent reply other threads:[~2014-03-31 20:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-31 1:26 [PATCH net] at86rf230: mask irq's before deregister device Alexander Aring
2014-03-31 20:43 ` David Miller [this message]
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