Re: Kernel 4.17.4 lockup

[H.J. Lu]

On Wed, Jul 11, 2018 at 9:49 AM, Dave Hansen <dave.hansen@xxxxxxxxx> wrote:
> On 07/11/2018 09:29 AM, H.J. Lu wrote:
>>>> # It takes about 3 hour to bootstrap x86-64 GCC and 3 hour to run tests,
>>>> TIMEOUT=480
>>>> # Run it every hour,
>>>> 30 * * * * /export/gnu/import/git/gcc-test-x32/gcc-build -mx32
>>>> --with-pic > /dev/null 2>&1
>>> Oh, fun, one of those.
>>>
>>> How long does it take to reproduce?
>> About 5 hours.
>
> It would be much appreciated if you can get a console of some kind on
> that system and try to get a full KASAN oops out of it.  Serial, usb
> debug, or maybe netconsole would probably work.

I don't have serial ports. I will try netconsole.

> I'll also try to get it running on a big system and see if it triggers
> faster there.

I have seen it on machines with various amounts of cores and RAMs.
It triggers the fastest on 8 cores with 6GB RAM reliably.

-- 
H.J.