summaryrefslogtreecommitdiff
path: root/external/apache2/llvm/lib/libLLVMAMDGPUCodeGen
diff options
context:
space:
mode:
authormsaitoh <msaitoh@NetBSD.org>2019-11-11 08:12:35 +0000
committermsaitoh <msaitoh@NetBSD.org>2019-11-11 08:12:35 +0000
commitc43338d4ef554fe177366e4927323ba684e5b1ab (patch)
treea495d87277a9a7be6150a952561473061c9368c0 /external/apache2/llvm/lib/libLLVMAMDGPUCodeGen
parente226ee443dd7ddc0a899322b7c7b972771fba3f4 (diff)
Fix IP broadcast + checksum offload problem.
When a machine sends a IP broadcast packet to an Ethernet interface that the checksum offload flags are set, the packet goes through ether_output() -> looutput() and the offload flags is cleard without calculating the checksum. And then, ip_input() calculate the packet's checksum because it's csum_flags is zero. It regard as bad checksum and it's dropped because the packet's ifp is s not lo0's. Fixes this bug by passing csum_flags as "calculated and good" when IN_LOOPBACK_NEED_CHECKSUM() is false. Adviced by ryo@. This problem was seen when "routed -s" was used and the machine's interface's offload flags were set. bad checksum field of "netstat -s" was increased every 30 minutes.
Diffstat (limited to 'external/apache2/llvm/lib/libLLVMAMDGPUCodeGen')
0 files changed, 0 insertions, 0 deletions