linux-kernel - Re: [random] 31ac294037: BUG:kernel_reboot-without-warning_in_test

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Date:   Wed, 22 Jun 2022 11:28:44 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     kernel test robot <oliver.sang@...el.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, lkp@...ts.01.org, lkp@...el.com
Subject: Re: [random]  31ac294037:
 BUG:kernel_reboot-without-warning_in_test_sta

On Wed, Jun 22, 2022 at 02:48:59PM +0800, kernel test robot wrote:
> [ 61.471397][ T855] random: get_random_u32 called from arch_align_stack+0x33/0x4e with crng_init=0 
> [ 61.471431][ T855] random: get_random_bytes called from create_elf_tables+0x14f/0x84c with crng_init=0 
> [ 61.471493][ T855] random: get_random_u64 called from randomize_page+0x7f/0x93 with crng_init=0 
> [ 61.474209][ T792] random: get_random_u32 called from arch_setup_additional_pages+0x9d/0xe1 with crng_init=0 
> [ 61.474251][ T792] random: get_random_u32 called from arch_align_stack+0x33/0x4e with crng_init=0 

If the DEBUG option, CONFIG_WARN_ALL_UNSEEDED_RANDOM=y, is set, then
this is exactly the intended behavior. Looking at your .config, it is
set. So no issue here.

Jason