On Sat, Apr 11, 2020 at 11:22 PM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > > On 4/11/20 10:36 PM, Naresh Kamboju wrote: > > FYI, > > > > Is this problem related to, > > > > Regression reported on Linux next 5.6.0-rc4-next-20200305 on x86_64, > > i386, arm and arm64. The steps to reproduce is running kselftests lib > > printf.sh test case. > > Which is doing modprobe operations. > > > > BUG: kernel NULL pointer dereference, address: 00 - ida_free+0x76/0x140 > > > > https://lore.kernel.org/linux-kselftest/CAFd5g46Bwd8HS9-xjHLh_rB59Nfw8iAnM6aFe0QPcveewDUT6g@xxxxxxxxxxxxxx/T/ > > > > Looks similar. Lots of fwnode, software_node, ida stuff there. Sorry for the late reply, I was out. Yeah, I am pretty sure it is the same. Heikki proposed a fix that I am going to try. Also, I think I am going to send out a new test case for this that can live with the fwnode, software_node stuff. It would be nice if the printf test wasn't the only thing testing this stuff. Thanks!