On 2023/9/18 23:19, Greg Kroah-Hartman wrote:
On Mon, Sep 18, 2023 at 09:35:23PM +0800, yiyang (D) wrote:
In recent years, this problem has been reported in syzkaller all the time.
Link: https://syzkaller.appspot.com/bug?extid=dbac96d8e73b61aa559c
Historically, the developers have tried to fix this problem by use mutex
instead spinlock, but it didn't solve the problem..
Link: https://lore.kernel.org/all/20220826193545.20363-1-pchelkin@xxxxxxxxx/
Other developers have recently reported this problem, but no one has
continued to try to fix it.
Link:
https://lore.kernel.org/all/20230420082153.6711-1-daniel.starke@xxxxxxxxxxx/
Anyway, do we have any ideas for solving this problem?
Nope! Why do you think this is something that even needs to be
addressed?
.
Kernel only perform cannot sleep operations in atomic context, as
otherwise a system hang or crash may occur.
So there's a risk to this problem.
