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List:       gphoto
Subject:    [gphoto] gphoto2 segfault
From:       James Lund <jiml () stanford ! edu>
Date:       2001-11-19 23:30:26
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I had gphoto2 working from compiled daily CVS, but a changed something
(new CVS update, gtkam install, I wasn't paying close attention), and now
it segfaults.

The setup is RH 7.1, 2.4.2-2 kernal, JamCam 3.0 on a USB port,
libusb-0.1.4 installed, gphoto-2.0beta3.

When I try to grab the first picture, it segfaults:

gphoto2 --port usb --camera "KBGear JamCam" -p 1
Status: Initializing 'KBGear JamCam'...
Segmentation fault (core dumped)


When I run it with --debug, here's the output right before the crash:
---------------------------------------------------
gphoto2-port(2): Writing message (request=0xa5 value=0x6 index=0x0
size=0=0x0)...
gphoto2-port(3): No hexdump (NULL buffer)
gphoto2-port(2): Writing message (request=0xa5 value=0x5 index=0x0
size=0=0x0)...
gphoto2-port(3): No hexdump (NULL buffer)
jamcam(1): * jamcam_set_usb_mem_pointer
jamcam(1): *** position:  1074265088 (0x4007fc00)
gphoto2-port(2): Writing message (request=0xa1 value=0xfc00 index=0x4007
size=0=0x0)...
gphoto2-port(3): No hexdump (NULL buffer)
gphoto2-port(2): Reading message (request=0xa0 value=0x0 index=0x0
size=4=0x4)...
gphoto2-port(3): Hexdump of 4 = 0x4 bytes follows:
0000  00 fc 07 40            -                         ...@

gphoto2-port(2): Reading 16=0x10 bytes from port...
gphoto2-port(3): Hexdump of 16 = 0x10 bytes follows:
0000  3c 63 41 68 41 61 3f 5d-00 00 00 00 00 00 00 00  <cAhAa?]........

jamcam(1): * jamcam_set_usb_mem_pointer
jamcam(1): *** position:  1074265096 (0x4007fc08)
gphoto2-port(2): Writing message (request=0xa1 value=0xfc08 index=0x4007
size=0=0x0)...
gphoto2-port(3): No hexdump (NULL buffer)
gphoto2-port(2): Reading message (request=0xa0 value=0x0 index=0x0
size=4=0x4)...
gphoto2-port(3): Hexdump of 4 = 0x4 bytes follows:
0000  08 fc 07 40            -                         ...@

gphoto2-port(2): Reading 512=0x200 bytes from port...
gphoto2-port(3): Hexdump of 512 = 0x200 bytes follows:
0000  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0010  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0020  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0030  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0040  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0050  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0060  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0070  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0080  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0090  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
00a0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
00b0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
00c0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
00d0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
00e0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
00f0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0100  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0110  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0120  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0130  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0140  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0150  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0160  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0170  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0180  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
0190  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
01a0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
01b0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
01c0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
01d0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
01e0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................
01f0  00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00  ................

gphoto2-port(2): Writing message (request=0xa5 value=0x6 index=0x0
size=0=0x0)...
gphoto2-port(3): No hexdump (NULL buffer)
Segmentation fault (core dumped)
---------------------------------------------------


Any idea what's going wrong?

Jim Lund
jiml@stanford.edu
---------------------------------------------------------------------------
Nobel Prize in Chemistry 1937:
The prize was divided equally between:
HAWORTH, Sir WALTER NORMAN, Great Britain, Birmingham University, b. 1883,
d. 1950:
"for his investigations on carbohydrates and vitamin C" KARRER, PAUL,
Switzerland, Zurich University, b. 1889, d. 1971: "for his investigations on
carotenoids, flavins and vitamins A and B2"

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