Subject: Re: selftests: gpio: crash on arm64

From: Andy Shevchenko <[email-masked]>
Date: Thu, 9 Mar 2023 19:50:29 +0200

On Thu, Mar 09, 2023 at 09:33:29PM +0530, Naresh Kamboju wrote:
> Following kernel warnings and crash notices on arm64 Rpi4 device while
> running selftests: gpio on Linux mainline 6.3.0-rc1 kernel and Linux next.
> 
> Reported-by: Linux Kernel Functional Testing <[email-masked]>

...

> [   61.177432]  *** DEADLOCK ***
> [   61.177432]
> [   61.177434] 3 locks held by modprobe/510:
> [   61.177436] #0: ffff000040000698 (&n->list_lock){-.-.}-{2:2}, at:
> get_partial_node.part.0 (mm/slub.c:2271)
> [   61.177448] #1: ffff80000b227f18 (console_lock){+.+.}-{0:0}, at:
> vprintk_emit (kernel/printk/printk.c:1936 kernel/printk/printk.c:2315)
> [   61.177460] #2: ffff80000b228388 (console_srcu){....}-{0:0}, at:
> console_flush_all (include/linux/srcu.h:200 kernel/printk/printk.c:290
> kernel/printk/printk.c:2934)

How is it related to the GPIO?
Can you bisect if it's a regression somewhere?

-- 
With Best Regards,
Andy Shevchenko