Package: src:linux Version: 6.12.69-1 Severity: important Dear Maintainer,
After upgrading from kernel 6.12.63 to 6.12.69 on Debian 13, I am experiencing constant network disconnects (link flapping) on my Ethernet interface. Hardware: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 11) Symptoms: The dmesg log shows the link going Up and Down repeatedly every few seconds/minutes. Sometimes it downgrades from 1Gbps to 100Mbps before dropping again. Logs (dmesg): [ 5202.128177] r8169 0000:03:00.0 enp3s0: Link is Down [ 5205.071512] r8169 0000:03:00.0 enp3s0: Link is Up - 1Gbps/Full [ 5205.655468] r8169 0000:03:00.0 enp3s0: Link is Down [ 5223.796420] r8169 0000:03:00.0 enp3s0: Link is Up - 100Mbps/Full Troubleshooting: 1. Booting back to kernel 6.12.63-1 resolves the issue completely (no Link Down events). 2. The issue persists across different cables/ports on the newer kernel. 3. This appears to be a regression in the r8169 driver between .63 and .69. Please let me know if you need more logs or testing. Regards, -- *George K.M* (C)
