On 2017/6/22 14:08, Dan Carpenter wrote:
We should probably add a might_sleep() to ioremap() to prevent these
bugs in the future.
I think it is right to do this.
And it will be very useful to summarize common kernel interface
functions which may sleep into a list. When writing a new driver, the
We should probably add a might_sleep() to ioremap() to prevent these
bugs in the future.
This bug is eight years old. You can report it, but it's going to hard
to get anyone to fix it. I sometimes ignore ancient bugs. On the other
hand, netxen is fairly well supported so it doesn't hurt to try.
On 2017/6/21 21:40, Kalle Valo wrote:
Jia-Ju Bai writes:
On 06/21/2017 02:11 PM, Kalle Valo wrote:
David Miller writes:
From: Jia-Ju Bai
Date: Mon, 19 Jun 2017 10:48:53 +0800
The driver may sleep under a spin lock, and the function call path is:
netxen_nic_pci_mem_access_direct (acquire
Jia-Ju Bai writes:
> On 06/21/2017 02:11 PM, Kalle Valo wrote:
>> David Miller writes:
>>
>>> From: Jia-Ju Bai
>>> Date: Mon, 19 Jun 2017 10:48:53 +0800
>>>
The driver may sleep under a spin lock, and the function call path is:
netxen_nic_pci_mem_access_direct (acquire the lock by spin
Hi,
On Wed, Jun 21, 2017 at 02:33:03PM +0800, Jia-Ju Bai wrote:
On 06/21/2017 02:11 PM, Kalle Valo wrote:
David Miller writes:
From: Jia-Ju Bai
Date: Mon, 19 Jun 2017 10:48:53 +0800
The driver may sleep under a spin lock, and the function call path is:
netxen_nic_pci_mem_access_direct (acqu
On 06/21/2017 02:11 PM, Kalle Valo wrote:
David Miller writes:
From: Jia-Ju Bai
Date: Mon, 19 Jun 2017 10:48:53 +0800
The driver may sleep under a spin lock, and the function call path is:
netxen_nic_pci_mem_access_direct (acquire the lock by spin_lock)
ioremap --> may sleep
To fix it,
David Miller writes:
> From: Jia-Ju Bai
> Date: Mon, 19 Jun 2017 10:48:53 +0800
>
>> The driver may sleep under a spin lock, and the function call path is:
>> netxen_nic_pci_mem_access_direct (acquire the lock by spin_lock)
>> ioremap --> may sleep
>>
>> To fix it, the lock is released before
From: Jia-Ju Bai
Date: Mon, 19 Jun 2017 10:48:53 +0800
> The driver may sleep under a spin lock, and the function call path is:
> netxen_nic_pci_mem_access_direct (acquire the lock by spin_lock)
> ioremap --> may sleep
>
> To fix it, the lock is released before "ioremap", and the lock is
> ac
The driver may sleep under a spin lock, and the function call path is:
netxen_nic_pci_mem_access_direct (acquire the lock by spin_lock)
ioremap --> may sleep
To fix it, the lock is released before "ioremap", and the lock is
acquired again after this function.
Signed-off-by: Jia-Ju Bai
---
dr
The driver may sleep under a spin lock, and the function call path is:
netxen_nic_pci_mem_access_direct (acquire the lock by spin_lock)
ioremap --> may sleep
To fix it, the lock is released before "ioremap", and the lock is
acquired again after this function.
Signed-off-by: Jia-Ju Bai
---
dr
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