[mainline][ppc][bnx2x] watchdog: CPU 80 self-detected hard LOCKUP @ opal_interrupt+0x28/0x70 when module load/unload

[Michael Ellerman]

Abdul Haleem <abdhalee at linux.vnet.ibm.com> writes:
> On Fri, 2018-11-16 at 15:44 +1100, Michael Ellerman wrote:
>> Abdul Haleem <abdhalee at linux.vnet.ibm.com> writes:
>> > On Thu, 2018-11-15 at 16:40 +0530, Abdul Haleem wrote:
>> >> On Mon, 2018-09-24 at 15:49 +0530, Abdul Haleem wrote:
>> >> > On Mon, 2018-09-24 at 19:35 +1000, Oliver wrote:
>> >> > > On Mon, Sep 24, 2018 at 6:56 PM, Abdul Haleem
>> >> > > <abdhalee at linux.vnet.ibm.com> wrote:
>> >> > > > Greeting's
>> >> > > >
>> >> > > > bnx2x module load/unload test results in continuous hard LOCKUP trace on
>> >> > > > my powerpc bare-metal running mainline 4.19.0-rc4 kernel
>>                                                 ^^^^^^^^^^
>> >> 
>> >> Warnings also show up on 4.20.0-rc2-next-20181114
>> >
>> > We have a patch fix available https://patchwork.ozlabs.org/patch/998054/
>> >
>> > It fixed the problem.
>> 
>> But the bug it fixes wasn't present in 4.19.0-rc4, which is the version
>> you originally reported against. Or is that version string not accurate?
>
> Yes, version string wrong. the bug was first seen on linux-next
> 4.19.0-rc3-next-20180913 and on mainline version 4.19.0-rc8

OK. The commit that the above patch fixes was first in next-20181015, or
mainline as of v4.20-rc1~24.

cheers