On Thu, Mar 4, 2021 at 6:51 PM Jakub Kicinski <k...@kernel.org> wrote:
> Depends if kernel attempts to try to send a packet before __alx_open() > finishes. You can probably make it more likely by running trafgen, iperf > or such while suspending and resuming? I've tried "ping -f <GW>" first, but there was no effect - PC woke up successfully. Then I've tried TCP connection, like "wget -O /dev/null https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.11.3.tar.xz"; and this kills the kernel on resume reliably. So perphaps ICMP and TCP behave differently? Anyway, I'm happy to be able to finally enforce the kernel crash this way :) > I didn't look too closely to find out if things indeed worked 100% > correctly before, but now they will reliably crash on a NULL pointer > dereference if transmission comes before open is done. I can confirm that the fix really works and I cannot enforce the kernel crash anymore. So can we merge the patch to the mainline, and ideally also to the 5.10? Thanks Zbynek
