Hi All, I am testing "kexec -e" option with Ubuntu 18.04 having Linux-5.4-RC4. I am using below commands $ kexec -l /boot/vmlinuz-`uname -r` --initrd=/boot/initrd.img-`uname -r` --reuse-cmdline $ kexec -e When second kernel launches, it gives below error followed by mount of busy-box. [ 279.690575] ata1: softreset failed (1st FIS failed) [ 279.695446] ata1: limiting SATA link speed to 3.0 Gbps [ 280.910020] ata1: SATA link down (SStatus 0 SControl 320) [ 282.626018] ata1: SATA link down (SStatus 0 SControl 300) [ 282.631409] ata1: link online but 1 devices misclassified, retrying [ 282.637665] ata1: reset failed (errno=-11), retrying in 9 secs [ 298.294546] ata1: failed to reset engine (errno=-5) [ 302.042967] ata1: softreset failed (1st FIS failed) [ 308.798609] ata1: failed to reset engine (errno=-5) [ 337.546605] ata1: softreset failed (1st FIS failed) [ 337.551475] ata1: limiting SATA link speed to 3.0 Gbps [ 338.766022] ata1: SATA link down (SStatus 0 SControl 320) [ 339.270943] ata1: EH pending after 5 tries, giving up (initramfs) (initramfs) (initramfs) ls dev usr var etc scripts bin sys tmp root sbin conf run init lib proc This ata error goes away and root file system gets mounted if I compile kernel with CONFIG_SATA_AHCI=y option. I googled and find out that “CONFIG_SATA_AHCI=m” change was done as part of below bug fixed in upstream for Ubuntu. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1056563 https://patchwork.ozlabs.org/patch/218728/ I am trying to understand why CONFIG_SATA_AHCI=m causing issue for second kernel. Also has anyone also faced similar type of error. --pk Kexec tool version: kexec-tools 2.0.16 Linux boot arguments: root=UUID=798a858c-4f20-4b99-aa40-99bff9394093 ro crashkernel=auto console=ttyAMA0 Linux top commit: commit 7d194c2100ad2a6dded545887d02754948ca5241 (tag: v5.4-rc4, origin/master, origin/HEAD) Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Date: Sun Oct 20 15:56:22 2019 -0400 Linux 5.4-rc4 _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
