On 05/09/2020 18:18, Graham Perrin wrote: > On 05/09/2020 10:26, Hans Petter Selasky wrote: >> On 2020-09-05 11:00, Graham Perrin wrote: >>> On 04/09/2020 09:01, Hans Petter Selasky wrote: >>>> On 2020-09-04 01:42, Graham Perrin wrote: >>>>> This week for the first time I toyed with OpenZFS on a USB device: >>>>> a mobile hard disk drive connected to the dock of an HP EliteBook >>>>> 8570p. >>>>> >>>>> A light test, with the pool imported but not writing to the >>>>> dataset at suspend time. >>>>> >>>>> At resume time (22:31), the device was still physically connected >>>>> but the pool suffered an I/O failure (and the keyboard and >>>>> trackball on USB were unusable). >>> … >>>> We need output from "procstat -akk" to see where ZFS/USB is hanging. >>>> >>>> --HPS >>> >>> For test purposes I reproduced the behaviour with a different >>> device, a USB flash drive (connected to the same dock). >>> >>> Attached: >>> >>> 2020-09-05 09:27:55 procstat -akk.txt >>> >>> – output from procstat -akk >>> >>> 2020-09-05 09:17:59 suspend 09:26:49 resume.txt >>> >>> – the output in context. >>> >>> Thank you >>> >>> Graham >>> >>> >> >> Hi, >> >> USB is not hanging. >> >> It looks like a problem with USB resume, that no devices are >> recognized, until you re-plug them ... >> >> --HPS > > Hi > > If I export the pool before suspend, no problem at resume time. > > … Please Is there any way to avoid the need to export before suspending the computer? Might there be a future improvement to support for USB? ThanksReceived on Fri Nov 27 2020 - 17:19:49 UTC
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