Description of problem: In first kernel, udev rule may rename an NIC from eth0 to em1. In this case when building kdump image, 99kdumpbase/module-setup.sh will record em1 in /etc/cmdline.d/40ip.conf in the kdump initramfs. But on second kernel, we don't have that renaming udev rule, so the original NIC will appear to be eth0 ( not renamed to be em1). Because we have configured kdump to use em1 when building kdump image, and we don't have em1 on second kernel, dump to a remote target will fail. Version-Release number of selected component (if applicable): kexec-tools-2.0.3-42.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info: On first kernel booting: [ 25.221669] igb 0000:01:00.0: eth0: (PCIe:2.5Gb/s:Width x4) 00:15:17:a2:71:b4 [ 25.229718] igb 0000:01:00.0: eth0: PBA No: 1040FF-0FF [ 25.235470] igb 0000:01:00.0: Using MSI-X interrupts. 4 rx queue(s), 4 tx queue(s) [ 25.244172] igb 0000:01:00.1: PCI INT A -> GSI 28 (level, low) -> IRQ 28 [..] [ 25.680989] udevd[668]: renamed network interface eth0 to em1 On second kernel, udevd won't rename the NIC name.
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