/srv/irclogs.ubuntu.com/2017/04/13/#ubuntu-kernel.txt

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xnoxapw, cking - so i upgraded my laptop to a more recent zesty (used to be running 4.8 kernel, and finally got the 4.10 kernel)10:28
xnoxhave you been noticing weird stuff going on with nvme drives?10:28
ckingxnox, my NVME drive died a while ago, so I've not seen this10:29
xnoxmy controller gives up, and then ext4 goes nuts, fails to write a journal, and then remounts RO and then things fail.10:29
xnoxhttp://paste.ubuntu.com/24373466/10:29
xnoxwell it looks like 4.10 is killing me; or my drive is just dieing.10:29
xnoxbut this is like a one year laptop.....10:29
ckingxnox, do you force anything on like PCIe ASPM?10:30
xnoxcking, i'm not sure what you mean.10:30
apwxnox, well if you are seeing it 'regularly' booting back to a 4.8 kernel would cirtainly tell us if it was 4.10 or not10:30
ckingxnox, if you don't recognise what I'm saying about PCIe ASPM then probably not10:31
xnoxcking, in my bios i can choose driver type for disk drive - e.g. Off, ACHI, Raid (Intel Rapid something bullshit)10:31
xnoxthe default for RAID, but linux at the time then did not see any drives10:31
xnoxi am now rebooted into 4.8 and will use 4.8 for now, to see if this is reproducible or not.10:32
ckingxnox, I was wondering if fancy PCIe power saving is making the drive go offline10:32
* xnox ponders if kernel at all is at fault though10:32
xnox[ 2055.007879] nvme 0000:04:00.0: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0xffff10:32
xnoxcannot be kernel initiated can it be? e.g. deciding to power down the drive just for funzies.10:32
xnoxah that10:32
apwwell it depends what the 'down' in that sentence means10:33
ckingxnox, sometimes the BIOS may hint its fine to do it when in fact it's not10:33
apwand we might have just started noticing it says we can10:33
xnoxhm10:34
ckingxnox,  "pcie_aspm=off" is the way to force it off just in case10:34
xnoxlet me do that in my grub config10:36
xnoxand naturally i have lvm, and full disk encryption10:42
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