Re: [PATCH] netxen: Fix a sleep-in-atomic bug in netxen_nic_pci_mem_access_direct

From: Jia-Ju Bai
Date: Thu Jun 22 2017 - 06:53:24 EST

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 developer can refer to this list to reduce or avoid sleep-in-atomic bugs.

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.

I try to report bugs as soon as they are introduced. I report it to
the author and CC the relevant list. If people don't respond to my
email after a month then I complain again.

dan carpenter

Thanks for your helpful advice.

Jia-Ju Bai