On Thu, Aug 20, 2026 at 07:02:01PM -0700, Jakub Kicinski wrote:
> After forwarding net-next during the v7.3 merge window we started
> seeing:
>
> TRACE EVENT ERROR: Event ice_tx_dim_work has double dereference in
> TP_printk: REC->q_vector->tx.tx_ring->q_index
> WARNING: kernel/trace/trace_events.c:420 at
> test_double_dereference.cold+0x39/0x4b
I am seeing this in one of my hosts as well.
> this is due to extra checks added in tracing subsystem in
> commit b5cc230af5e5 ("tracing: Warn when an event dereferences a pointer in
> TP_printk()").
>
> Printing happens long after the event was recorded, by which point
> the pointers may be invalid (the ring or the dim instance).
> Copy the eight scalars into the event instead.
>
> Fixes: 3089cf6d3caa ("ice: add tracepoints")
> Signed-off-by: Jakub Kicinski <[email protected]>
Reviewed-by: Breno Leitao <[email protected]>
