On Tue, Apr 14, 2020 at 12:26:29PM -0700, Brendan Higgins wrote: > 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. My test suite just tripped over this bug. Is this the patch that you think fixes it? https://lore.kernel.org/linux-kselftest/20200414081513.GD2828150@xxxxxxxxxxxxxxxxx I'll add it to see if I can continue my testing. -- Steve
