Re: Kernel Oops in __blk_mq_all_tag_iter() using Raxda CM5

[Ming Lei <ming.lei@redhat.com>]

On Thu, Feb 06, 2025 at 10:29:34AM -0500, Rick Koch wrote:
> Hello linux-block,
> 
> I am seeing a kernel Oops in early booting up of a Radxa CM5 board running
> Armbian
> on a 6.12.7 kernel.
> 
> I had reported a very similar Oops back on 2024-10-11 (Oct 11, 2024)
> 
> https://lore.kernel.org/all/CANa58ee6EeT9V7Q=epoZdqYw3sLh1CZGNWqJ0UcKMp6eRfcd+Q@mail.gmail.com/T/
> 
> Which you had provided me with a patch that fixed the issue and has not
> occurred again.
> 
> Here is the current Oops I am experiencing, maybe 1 out of every 10 boots.
> It does lockup after this, requiring me to re-power/boot the board.
> 
> Starting kernel ...
> 
> [    1.582430] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
> [    1.582984] Modules linked in:
> [    1.583256] CPU: 6 UID: 0 PID: 46 Comm: cpuhp/6 Not tainted
> 6.12.7-edge-rockchip64 #7
> [    1.583942] Hardware name: Saturn SDR, Radxa CM5, 8inch LCD/Touch panel
> (DT)
> [    1.584557] pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS
> BTYPE=--)
> [    1.585167] pc : __blk_mq_all_tag_iter+0x3c/0x274
> [    1.585584] lr : blk_mq_all_tag_iter+0x14/0x20

Can you share where '__blk_mq_all_tag_iter+0x3c' points to?

Also running kernel with KASAN enabled often provides more helpful hint.



Thanks,
Ming