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[Discuss-gnuradio] failed to find urb in pending_rqsts: (nil)
From: |
Harald Welte |
Subject: |
[Discuss-gnuradio] failed to find urb in pending_rqsts: (nil) |
Date: |
Thu, 14 Apr 2005 22:08:27 +0200 |
User-agent: |
mutt-ng 1.5.8-r168i (Debian) |
Hi!
When running the 'test_usrp_standard_rx' or _tx programs contained in
the usrp-0.8 tarball, I get
address@hidden/7 (21:54) 2.5/usrp-0.8/host/apps > ./test_usrp_standard_rx
RX d'board A: Basic Rx
RX d'board B: TV Rx
fusb::pending_remove: failed to find urb in pending_rqsts: (nil)
zsh: 10309 segmentation fault ./test_usrp_standard_rx
This is on a dual opteron 246, running debian-amd64 and a vanilla
2.6.12-rc2 kernel.
strace'ing the program, I get the following last lines:
ioctl(3, USBDEVFS_SUBMITURB, 0xd1c940) = 0
ioctl(3, USBDEVFS_CONTROL, 0x7fffff800630) = 0
ioctl(3, USBDEVFS_CONTROL, 0x7fffff800670) = 4
getrusage(RUSAGE_SELF, {ru_utime={0, 6998}, ru_stime={0, 8998}, ...}) = 0
ioctl(3, USBDEVFS_REAPURBNDELAY, 0x7fffff7fc630) = -1 EAGAIN (Resource
temporarily unavailable)
ioctl(3, USBDEVFS_REAPURB, 0x7fffff7fc630) = 0
write(2, "fusb::pending_remove: failed to "..., 65fusb::pending_remove: failed
to find urb in pending_rqsts: (nil)) = 65
So it seems like the REAPURB ioctl returns a NULL-pointer and aborts.
Does anyone have an idea what's going on?
--
- Harald Welte <address@hidden> http://gnumonks.org/
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- [Discuss-gnuradio] failed to find urb in pending_rqsts: (nil),
Harald Welte <=