On Wed, 26 Jul 2023 22:20:42 +0300 Tariq Toukan wrote: > > There is a small bug in this commit, we should always set SPLICE. > > But I don't see how that'd cause the warning you're seeing. > > Does your build have CONFIG_DEBUG_VM enabled? > > No. > > # CONFIG_DEBUG_VM is not set > # CONFIG_DEBUG_VM_PGTABLE is not set Try testing v6.3 with DEBUG_VM enabled or just remove the IS_ENABLED() from: https://github.com/torvalds/linux/blob/v6.4/net/ipv4/tcp.c#L1051