Tue, Apr 23, 2024 at 12:24:46PM CEST, [email protected] wrote: >From: Paolo Abeni <[email protected]> > >Sabrina reports that the igb driver does not cope well with large >MAX_SKB_FRAG values: setting MAX_SKB_FRAG to 45 causes payload >corruption on TX. > >The root cause of the issue is that the driver does not take into >account properly the (possibly large) shared info size when selecting >the ring layout, and will try to fit two packets inside the same 4K >page even when the 1st fraglist will trump over the 2nd head. > >Address the issue forcing the driver to fit a single packet per page, >leaving there enough room to store the (currently) largest possible >skb_shared_info. > >Fixes: 3948b05950fd ("net: introduce a config option to tweak MAX_SKB_FRAG") >Reported-by: Jan Tluka <[email protected]> >Reported-by: Jirka Hladky <[email protected]> >Reported-by: Sabrina Dubroca <[email protected]> >Tested-by: Sabrina Dubroca <[email protected]> >Tested-by: Corinna Vinschen <[email protected]> >Signed-off-by: Paolo Abeni <[email protected]> >--- > drivers/net/ethernet/intel/igb/igb_main.c | 1 +
Also, please use get_maintainer.pl script to get cclist.
