>From time to time, my apq8096-db820c fails to boot to userspace, reset back to fastboot and locks up: to easily reproduce the issue, i'm boot looping using a cron job with a 1 min reboot entry on the board while leaving a "while 1; do fastboot boot boot.img; done" on the host pc. The issue is present in mainline up to 5.2-rc4, using defconfig and: CONFIG_SCSI_UFS_QCOM=y CONFIG_PHY_QCOM_QMP=y CONFIG_PHY_QCOM_UFS=y but was present in previous releases too (e.g. 4.14., 4.19, etc qcom-lt or mainline), where it's even easier to reproduce (e.g. takes way less reboots to trigger it). These are the last lines printed out: ... [ 7.407209] qcom-qmp-phy 34000.phy: Registered Qcom-QMP phy [ 7.448058] qcom-qmp-phy 7410000.phy: Registered Qcom-QMP phy [ 7.461859] ufs_qcom_phy_qmp_14nm 627000.phy: invalid resource [ 7.535434] qcom-qmp-phy 34000.phy: phy common block init timed-out [ 7.538596] phy phy-34000.phy.0: phy init failed --> -110 [ 7.550891] qcom-pcie: probe of 600000.pcie failed with error -110 [ 7.619008] qcom-pcie 608000.pcie: 608000.pcie supply vddpe-3v3 not found, using dummy regulator Log Type: B - Since Boot(Power On Reset), D - Delta, S - Statistic S - QC_IMAGE_VERSION_STRING=BOOT.XF.1.0-00301 S - IMAGE_VARIANT_STRING=M8996LAB S - OEM_IMAGE_VERSION_STRING=crm-ubuntu68 S - Boot Interface: UFS S - Secure Boot: Off ... Full boot here: https://pastebin.ubuntu.com/p/rtjVrD3yzk/ Any idea what is going on? Am i doing something wrong? -- bye, p.