Hi, You’re right, of course - the size seems to be the problem indeed. Even with the patch applied, the problem persists. But the results are interesting: neither is the file completely downloaded, nor does it always stall at the same position, as you can see in the following lines acquired from multiple test runs:
40.717975 ptp_ptpip_generic_read (2): reading at offset 31297528, reading 13983496 bytes 41.232571 ptp_ptpip_generic_read (2): reading at offset 38903800, reading 6360451 bytes 36.434165 ptp_ptpip_generic_read (2): reading at offset 37052408, reading 8150851 bytes 35.296001 ptp_ptpip_generic_read (2): reading at offset 30875640, reading 14042982 bytes Best regards Marius Steffen mar...@mariussteffen.de > Am 06.01.2019 um 19:35 schrieb Horshack <horsh...@live.com>: > > The fact it fails with uncompressed or lossless compressed NEFs but not lossy > compressed NEFs hints the issue may be related to files above a certain size, > as the lossy version will be smallest of the three options. You can > prove/disprove this by trying a lossless compressed NEF shot in DX area mode, > which will be smaller than the FX version. > > Adam > > On Jan 6, 2019, at 10:28 AM, Marcus Meissner <meiss...@suse.de> wrote: > >> Hi, >> >> Yes, it is very likely an issue in libgphoto2. >> >> If you download the NEF over USB, is the end bytes also the bytes below? >> >> One other things is that the camera might expect us polling the event fd too, >> can you try the following patch, it has both more debug and also checking >> for events inbetween reads. >> >> Ciao, Marcus >> >> >> >> On Sun, Jan 06, 2019 at 06:07:15PM +0100, Marius Steffen wrote: >>> Hi, >>> >>> strange - though, IIRC on my old D5500 everything was working, too. >>> I suspected SnapBridge at first, but using „qDslrDashboard“, which isn’t >>> using libgphoto2 (at least it doesn’t link against the dylib), I’m able to >>> successfully download the RAW file. >>> >>> It’s hanging after the 0490 line - though there were more of this data dump >>> blocks for the .NEF, this is the last one. I can’t really tell how much of >>> the .NEF is already received, but looking the time elapsed and the size of >>> the log, I suspect it’s (almost) completely read. >>> >>> The camera is turned on the whole time. >>> >>> I’m using libgphoto2 in an application, with exactly the same problem (so >>> the problem’s probably not in gphoto2 CLI, but libgphoto2) - according to >>> the debugger, it’s stalled at read. >>> >>> Best regards >>> >>> Marius Steffen >>> mar...@mariussteffen.de >>> >>> >>> >>>> Am 06.01.2019 um 17:19 schrieb Marcus Meissner <mar...@jet.franken.de>: >>>> >>>> On Fri, Jan 04, 2019 at 04:39:27AM +0100, Marius Steffen wrote: >>>>> Hi, >>>>> >>>>> I’m having problems downloading RAW images from my Nikon D850, connected >>>>> via PTP/IP. >>>>> The camera is configured in RAW+JPEG(Basic) S mode, so gphoto2 transfers >>>>> the JPEG file first, which succeeds. >>>>> Afterwards, it is downloading the RAW file, but never finishes - instead, >>>>> at some point, it freezes, the camera finally disconnects (without >>>>> gphoto2 noticing). >>>>> Only manually aborting gphoto2 is shutting it down, without ever saving >>>>> the RAW file. >>>>> >>>>> I’ve done some tests, and only ever observed this behavior when using >>>>> „Lossless compressed“ or „Uncompressed“ RAW file compression settings. >>>>> „Compressed“ (= lossy compression) seems to work though. >>>>> >>>>> I’d like to have this fixed, and am willing to help of course, as this >>>>> leads to crashing my cameras WiFi, which then has to be turned on again >>>>> using SnapBridge. >>>>> >>>>> I’ve attached the relevant log file, without the image data; the last >>>>> part in the full log is something like: >>>>> >>>>> 36.773805 ptp_ptpip_generic_read (3): ptpip/generic_read data: >>>>> (hexdump of 1176 bytes) >>>>> 0000 f3 ef df df cf cf 6f df-5f 4f 4f df 7f df bd 7f ......o._OO..... >>>>> 0010 7f 7e fb f3 db ef 4f bd-ff 7e fc f4 fd fd fc fb .~....O..~...... >>>>> 0020 d3 db 9b d3 8f ef 6f bf-3d fe fb f7 f3 db f3 8f ......o.=....... >>>>> 0030 f7 db f3 ef cf cf df bd-ff 7d 3e fb 93 ef bd b8 .........}>..... >>>>> 0040 bd 3e f7 fb f3 f3 f3 f7-f7 f7 f3 ef df bf 3e f6 .>............>. >>>>> 0050 fc f5 fb db f7 d7 f7 db-d3 f3 93 ef 5f cf df bf ............_... >>>>> 0060 3f 7f 3e fb f3 f7 f7 ef-bd 7f 3d bf 7f 3f 7f 7d ?.>.......=..?.} >>>>> 0070 7f 7d bd 7d 7f 3f 7f 7f-7f 7f 3d 7e fd fd f7 fb .}.}.?....=~.... >>>>> 0080 f3 f3 f3 f3 ef df bf 3d-7f 7d bf 7e fc fd fb ef .......=.}.~.... >>>>> 0090 bd 7f 3e fb db f7 d7 f3-ef cf b9 3f 7f 3e f5 fd ..>........?.>.. >>>>> 00a0 fb f3 f7 ef bf 7e fc fd-fb d7 ef be e2 fd e5 fc .....~.......... >>>>> 00b0 fb ef bd bf 7d 7d 3e e4-fc fb f7 f3 ef cf df 6f ....}}>........o >>>>> 00c0 cf 4f bd bf 38 3f 72 38-fe e5 fb f3 d7 ef be fb .O..8?r8........ >>>>> 00d0 8f ef bf 7d fd 7f 7f 7e-fb f3 ef df be fb ef df ...}...~........ >>>>> 00e0 be fc fd f7 f5 fc fd f5-f5 fb f7 f7 ef df bd 3e ……………> >>>>> <SNIP> >>>>> 0490 f3 9f f7 d7 ef df 4f 4f- ......OO >>>> >>>> Hi, >>>> >>>> I have tried reproducing this with the Nikon D750 and Nikon Z6 over Wifi, >>>> but failed... it downloads both JPG and uncompressed RAW. >>>> >>>> How much data has been read from the NEF file at above step? >>>> >>>> Is there another try to read after the 0490 ... line, or does it hang >>>> right there? >>>> >>>> Does it hang there with the camera still on? >>>> >>>> >>>> Can you attach gdb and check if it is hanging somewhere besides read? >>>> >>>> Ciao, Marcus >>> >>> >>> >>> _______________________________________________ >>> Gphoto-devel mailing list >>> Gphoto-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/gphoto-devel >> >> -- >> Marcus Meissner,SUSE LINUX GmbH; Maxfeldstrasse 5; D-90409 Nuernberg; Zi. >> 3.1-33,+49-911-740 53-432,,serv=loki,mail=wotan,type=real <meiss...@suse.de> >> <xx.pat> >> _______________________________________________ >> Gphoto-devel mailing list >> Gphoto-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/gphoto-devel _______________________________________________ Gphoto-devel mailing list Gphoto-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gphoto-devel
