On Thu, Dec 7, 2023 at 4:09 PM Tomoaki AOKI <junch...@dec.sakura.ne.jp> wrote:
> On Thu, 7 Dec 2023 14:38:37 -0800 > Pete Wright <p...@nomadlogic.org> wrote: > > > > > > > On 10/13/23 7:34 PM, Warner Losh wrote: > > > > > > > > > > > the messages i posted in the start of the thread are from the VM > itself > > > (13.2-RELEASE). The zpool on the hypervisor (13.2-RELEASE) showed > no > > > such issues. > > > > > > Based on your comment about the improvements in 14 I'll focus my > > > efforts > > > on my workstation, it seemed to happen regularly so hopefully i can > > > find > > > a repo case. > > > > > > > > > Let me now if you see similar messages in stable/14. I think I've > fixed > > > all the > > > issues with timeouts, though you shouldn't ever seem them in a vm setup > > > unless something else weird is going on. > > > > > > > > > Hi Warner, just resurfacing this thread because I've had a few lockups > > on my workstation running 14.0-STABLE. I was able to capture a photo of > > the hang and this seems to be the most important line: > > > > nvme0: Resetting controller due to a timeout and possible hot unplug. > > > > When I scan the device after reboot I don't see any errors, but if there > > is a particular thing I should check via nvmecontrol please let me know. > > Also, since it mentions possible hot unplug I wonder if this is > > hardware/firmware related to my system? > > > > Anyway, haven't found a repro case yet but it has locked up a few times > > the past two weeks. > > > > -pete > > > > > > -- > > Pete Wright > > p...@nomadlogic.org > > If I myself encounter this kind of problem ON BARE METAL HARDWARE, > I would usually suspect > > *Overheating caused hang of NVMe controller or PCI bridge on SSD, or > Yes. Most drive's firmware when it overheats resets. There might be something that the pci code can do when this happens to retrain the link, reprogram the config registers, etc. > *Unstable physical connection (bad contact) > Yea, hot plug controller is required for this, but this will be bouncing. Warner
