Messages in this thread | | | Subject | Re: [PATCH 5/5] dax: "Hotplug" persistent memory for use like normal RAM | From | Brice Goglin <> | Date | Tue, 12 Feb 2019 20:59:45 +0100 |
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Le 11/02/2019 à 17:22, Dave Hansen a écrit :
> On 2/9/19 3:00 AM, Brice Goglin wrote: >> I've used your patches on fake hardware (memmap=xx!yy) with an older >> nvdimm-pending branch (without Keith's patches). It worked fine. This >> time I am running on real Intel hardware. Any idea where to look ? > I've run them on real Intel hardware too. > > Could you share the exact sequence of commands you're issuing to > reproduce the hang? My guess would be that there's some odd interaction > between Dan's latest branch and my now (slightly) stale patches. > > I'll refresh them this week and see if I can reproduce what you're seeing.
# ndctl disable-region all # ndctl zero-labels all # ndctl enable-region region0 # ndctl create-namespace -r region0 -t pmem -m devdax { "dev":"namespace0.0", "mode":"devdax", "map":"dev", "size":"1488.37 GiB (1598.13 GB)", "uuid":"ad0096d7-3fe7-4402-b529-ad64ed0bf789", "daxregion":{ "id":0, "size":"1488.37 GiB (1598.13 GB)", "align":2097152, "devices":[ { "chardev":"dax0.0", "size":"1488.37 GiB (1598.13 GB)" } ] }, "align":2097152 } # ndctl enable-namespace namespace0.0 # echo -n dax0.0 > /sys/bus/dax/drivers/device_dax/remove_id <hang>
I tried with and without dax_pmem_compat loaded, but it doesn't help.
Brice
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