netdev - Re: Computer fails to resume from suspend unless I rmmod jme before initiating the suspend

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Message-ID: <CA+ToGPFP5a76TS2C_A7WJUWM9Eo60Ym5OtwHcKtY+OreoRVoFA@mail.gmail.com>
Date:	Sun, 14 Feb 2016 18:16:47 -0200
From:	Diego Viola <diego.viola@...il.com>
To:	cooldavid@...ldavid.org
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: Computer fails to resume from suspend unless I rmmod jme before
 initiating the suspend

On Sat, Feb 13, 2016 at 6:38 PM, Diego Viola <diego.viola@...il.com> wrote:
> On Fri, Feb 12, 2016 at 6:17 AM, Diego Viola <diego.viola@...il.com> wrote:
>> On Wed, Feb 10, 2016 at 7:36 PM, Diego Viola <diego.viola@...il.com> wrote:
>>> On Wed, Feb 10, 2016 at 2:19 AM, Diego Viola <diego.viola@...il.com> wrote:
>>>> Hi Guo,
>>>>
>>>> I have an x86 computer with this network card:
>>>>
>>>> 02:00.0 Ethernet controller: JMicron Technology Corp. JMC260 PCI
>>>> Express Fast Ethernet Controller (rev 03)
>>>>
>>>> Every time I initiate a suspend (systemctl suspend) the machine hangs
>>>> at resume unless I unload the jme driver.
>>>>
>>>> Here is a Call Trace I was able to get after it hanged:
>>>>
>>>> <IRQ>
>>>> tasklet_action+0xb0/0xd0
>>>> __do_softirq+0xcf/0x290
>>>> irq_exit+0xa3/0xb0
>>>> do_IRQ+0x54/0xd0
>>>> common_interrupt+0x82/0x82
>>>>
>>>> <EOI>
>>>> jme_start_irq+0x84/0xa0 [jme]
>>>> jme_resume+0x12f/0x210 [jme]
>>>> pci_pm_resume+0x64/0xa0
>>>> ? pci_pm_thaw+0x90/0x90
>>>> dpm_run_callback+0x4e/0x130
>>>> device_resume+0xd3/0x1f0
>>>> async_resume+0x1d/0x50
>>>> async_run_entry_fn+0x48/0x150
>>>> process_one_work+0x14b/0x440
>>>> worker_thread+0x48/0x4a0
>>>> ? process_one_work+0x440/0x440
>>>> kthread+0xd8/0xf0
>>>> ? kthread_worker_fn+0x170/0x170
>>>> ret_from_fork+0x3f/0x70
>>>> ? kthread_worker_fn+0x170/0x170
>>>>
>>>> Please note that I had to type the calltrace above as I don't have a
>>>> serial cable and netconsole didn't work for me for some reason, so
>>>> there could be typos I didn't notice.
>>>>
>>>> I run Arch Linux (x86-64), my uname is:
>>>>
>>>> $ uname -a
>>>> Linux myhost 4.4.1-2-ARCH #1 SMP PREEMPT Wed Feb 3 13:12:33 UTC 2016
>>>> x86_64 GNU/Linux
>>>>
>>>> Please let me know if you have any questions or need any other information.
>>>>
>>>> Thanks,
>>>>
>>>> Diego
>>>
>>> I found something interesting, I can suspend/resume just fine when the
>>> module is loaded and when I do this:
>>>
>>> $ ip link set ens34 down
>>>
>>> When I bring the device up again the hang still occurs.
>>>
>>> Diego
>>
>> I have tried to reproduce this problem with the latest git
>> (torvalds/linux.git) and also went back to Linux 3.11 and I still got
>> the hang with both, my plan was to run git bisect, but the problem
>> still occurs.
>>
>> I opened this bug in bugzilla if it's preferred to deal with the problem there:
>>
>> https://bugzilla.kernel.org/show_bug.cgi?id=112351
>>
>> Thanks,
>> Diego
>
> So I found that disabling async as in:
>
> $ echo 0 > /sys/power/pm_async
>
> Helps with my issue, I can't reproduce the hang anymore, tried
> suspend/resume almost ~15 times.
>
> Diego

Can someone please help?