The issue with userfaultfd not working with modern Linux kernels was
fixed in 3.4.0 per
https://github.com/OSGeo/gdal/pull/4508/commits/f861fd3fc6826ab753e0155f15507494d54f7ecb
/vsicurl/ on a netCDF file, with the netCDF driver, cannot work on
non-Linux systems. The HDF5 driver will then trigger.
Le 02/02/2022 à 10:01, Stefan Blumentrath a écrit :
Hi,
And thanks for your swift reply, Jukka.
I tried different versions on Linux (Ubuntu: ubuntugis-stable and
ubuntugis-unstable):
3.3.2, 3.4.0
Fedora:
3.3.2
On Windows the latest OSGeo4W provided version:
3.4.1 (and there it does not work)
On my Fedora box however, I now compiled GDAL 3.4.1, there it seems to
work again…
Cheers
Stefan
*From:*Rahkonen Jukka (MML) <jukka.rahko...@maanmittauslaitos.fi>
*Sent:* onsdag 2. februar 2022 09:49
*To:* Stefan Blumentrath <stefan.blumentr...@nina.no>; gdal-dev
<gdal-dev@lists.osgeo.org>
*Subject:* Re: netCDF with virtual file system (/vsicurl/) not working
Hi,
What is your GDAL version? Check with "gdalinfo --version"
-Jukka Rahkonen-
*Lähettäjä:*gdal-dev <gdal-dev-boun...@lists.osgeo.org> *Puolesta
*Stefan Blumentrath
*Lähetetty:* keskiviikko 2. helmikuuta 2022 10.36
*Vastaanottaja:* gdal-dev <gdal-dev@lists.osgeo.org>
*Aihe:* [gdal-dev] netCDF with virtual file system (/vsicurl/) not working
Hi,
I have been using GDAL to access online data sources in netCDF
successfully.
With Ubuntu 20.04, this unfortunately no longer works with the netCDF
driver.
Here is a reproducible example:
gdalinfo -if netCDF
/vsicurl/https://nbstds.met.no/thredds/fileServer/NBS/S2A/2021/02/28/S2A_MSIL1C_20210228T103021_N0202_R108_T35WPU_20210228T201033_DTERRENGDATA.nc
The original error message (before working around the HDF5 driver) has
been that permissions for the userfaultfd system call were denied. But
if I specify the netCDF driver, the format is not recognized.
Downloading the dataset and opening It locally works.
I saw some possibly relevant changes:
https://github.com/OSGeo/gdal/pull/4508
<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FOSGeo%2Fgdal%2Fpull%2F4508&data=04%7C01%7CStefan.Blumentrath%40nina.no%7C712e34b2580542465b6308d9e628e428%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637793885589031036%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=8YXTXn0Pc7WWlTK5F6ECh1PocPjazxOahHihakmjpU8%3D&reserved=0>
https://github.com/OSGeo/gdal/issues/2412
<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FOSGeo%2Fgdal%2Fissues%2F2412&data=04%7C01%7CStefan.Blumentrath%40nina.no%7C712e34b2580542465b6308d9e628e428%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637793885589031036%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=9sQzMAyPA54CSZVIdvqkiK0RrFLeainC3FYka0tfPEQ%3D&reserved=0>
Any hint on how to get that functionality back would be very much
appreciated!
Cheers
Stefan
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev
--
http://www.spatialys.com
My software is free, but my time generally not.
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev
