Re: BUG: spinlock bad magic on CPU#1, irq/39-firewire/245 (v6.18-rc4, ppc64)

From: Erhard Furtner

Date: Fri Nov 14 2025 - 18:55:04 EST


On 11/14/25 15:27, Takashi Sakamoto wrote:
> Hi,
>
> Thanks for your sending the patch. I completely overlooked the lack of
> initialization... Your patch fixes the same issue reported by Erhard
> Furtner[1].
>
> On Fri, Nov 14, 2025 at 12:25:31AM +0200, Ville Syrjala wrote:
>> Cc: linux1394-devel@xxxxxxxxxxxxxxxxxxxxx
>> Cc: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
>> Fixes: 7d138cb269db ("firewire: core: use spin lock specific to topology map")
>> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
>> ---
>> drivers/firewire/core-card.c | 2 ++
>> 1 file changed, 2 insertions(+)
>
> Applied to for-linus branch. I will send it to upstream as a part of
> fixes for v6.18-rc6 kernel.
>
> [1] https://lore.kernel.org/lkml/992eaf94-6fbb-4611-9a29-2db2e2148965@xxxxxxxxxxx/

I can confirm the patch from https://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394.git/commit/?h=for-linus&id=2ea68aed6b0d327c78755c954827f25452e42f3f applies on v6.18-rc5 and fixes my problem.

Thanks!

Regards,
Erhard