Hi Mathias,
I seem to be able to rather easily kill xHCI by just running
test.sh/testusb with a USB2 device attached to it (I used my AM437x
Starter Kit for the test).
I noticed that after not too long, all tests started failing (see below)
but using ehci, it works just fine (afaicr).
Here's a snippet of the hang, but it has been running for a while and
before testusb I ran over 24 hours of MSC testing, also passed full
USB20CV and USB30CV with g_mass_storage and g_zero (and most other
gadget drivers too):
[874685.176903] usbtest 1-7:3.0: Linux gadget zero
[874685.176906] usbtest 1-7:3.0: high-speed {control in/out bulk-in bulk-out} tests (+alt)
[874703.140258] usbtest 1-7:3.0: TEST 9: ch9 (subset) control tests, 5000 times
[874723.716857] usbtest 1-7:3.0: TEST 10: queue 32 control calls, 5000 times
[874743.773236] usbtest 1-7:3.0: TEST 14: 15000 ep0out, 1..256 vary 1
[874748.774291] usbtest 1-7:3.0: ctrl_out write failed, code -110, count 0
[874754.297205] usbtest 1-7:3.0: set altsetting to 0 failed, -110
[874759.819703] usbtest 1-7:3.0: set altsetting to 0 failed, -110
[874765.341962] usbtest 1-7:3.0: set altsetting to 0 failed, -110
[874765.863127] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874766.383337] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874766.903526] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874767.423750] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874767.943965] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874768.464174] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874768.988078] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874769.376451] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874769.896675] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874770.416920] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874770.937170] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874771.306870] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874771.829525] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874772.349723] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874772.870041] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874773.363080] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874773.866381] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874774.386594] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874774.910836] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874775.431062] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874775.951018] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874776.347478] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874776.867690] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874777.387859] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874777.911980] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874778.432250] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874778.952692] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874779.472784] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874780.008646] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874780.528880] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874780.925468] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874781.297533] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874781.817776] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874782.341828] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874782.862237] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874783.382444] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874783.902684] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874784.430835] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874784.954964] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874785.475225] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874785.999464] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874786.519801] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874787.039882] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874787.560232] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874788.080327] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874788.600517] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874789.120687] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874789.641042] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874790.161156] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874790.680681] xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
[874790.680707] usbtest 1-7:3.0: TEST 1: write 2048 bytes 5000 times
[874800.683902] usb 1-7: test1 failed, iterations left 4999, status -110 (not 0)
[874801.205807] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874801.726028] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874802.246264] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874802.770493] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874803.290302] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874803.810881] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874804.331116] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874804.851432] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874805.371576] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874805.891800] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874806.412040] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874806.936311] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874807.460458] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874807.980610] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874808.500802] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874809.020982] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874809.541290] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874810.065583] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874810.585678] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874811.106000] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874811.630164] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874812.150468] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874812.670556] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874813.194790] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874813.715062] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874814.239361] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874814.763513] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874815.283835] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874815.807702] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874816.328202] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874816.848348] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874817.372674] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874817.892779] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874818.413039] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874818.933147] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874819.453549] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874819.973687] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874820.497913] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874821.018020] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874821.538384] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874822.058512] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874822.582741] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874823.102946] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874823.623217] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874824.147402] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874824.667670] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874825.187794] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874825.712031] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874826.236288] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874826.760597] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874827.284690] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874827.804832] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874828.293948] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874828.813345] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874829.333534] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874829.857820] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874830.378004] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874830.898252] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874831.314448] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874831.834668] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874832.358846] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874832.883075] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874833.402489] xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
[874833.402511] usbtest 1-7:3.0: TEST 10: queue 32 control calls, 5000 times
[874833.402558] usbtest 1-7:3.0: subtest 0 error, status -71
[874833.402562] usbtest 1-7:3.0: control queue 80.06, err -71, 159999 left, subcase 0, len 0/18
[874833.922827] xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
[874833.922854] usbtest 1-7:3.0: TEST 14: 15000 ep0out, 1..256 vary 1
[874833.922902] usbtest 1-7:3.0: ctrl_out write failed, code -71, count 0
[874834.443593] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874834.963891] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874835.484114] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874836.004316] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874836.524502] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874837.048783] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874837.569073] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874838.089142] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874838.609439] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874839.133696] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874839.653645] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874840.046062] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874840.565995] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874840.990235] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874841.382566] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874841.742792] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874842.263019] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874842.787199] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874843.315454] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874843.819569] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874844.239656] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874844.748105] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874845.256333] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874845.776425] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874846.300376] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874846.768932] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874847.289037] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874847.809379] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874848.298296] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874848.817698] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874849.337940] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874849.858118] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874850.378397] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874850.886529] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874851.406778] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874851.931068] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874852.455183] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874852.979525] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874853.499764] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874854.019849] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874854.540184] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874855.060345] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874855.584596] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874856.108739] usbtest 1-7:3.0: set altsetting to 0 failed, -71
[874856.628230] xhci_hcd 0000:00:14.0: URB transfer length is wrong, xHC issue? req. len = 0, act. len = 4294967288
[874856.628255] usbtest 1-7:3.0: TEST 7: write/63 2000 sglists 32 entries 0..64 bytes
[875045.590161] INFO: task testusb:18493 blocked for more than 120 seconds.
[875045.590164] Not tainted 3.16-2-amd64 #1
[875045.590164] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[875045.590165] testusb D ffff88031c208f38 0 18493 18217 0x00000000
[875045.590168] ffff88031c208ae0 0000000000000082 0000000000014240 ffff8802a7127fd8
[875045.590169] 0000000000014240 ffff88031c208ae0 ffff8802a7127de0 ffff8802a7127be0
[875045.590171] ffff8802a7127dd8 ffff88031c208ae0 0000000000000001 0000000000000001
[875045.590172] Call Trace:
[875045.590177] [<ffffffff81507ec9>] ? schedule_timeout+0x229/0x2a0
[875045.590200] [<ffffffffa0026736>] ? usb_hcd_submit_urb+0xa6/0xa60 [usbcore]
[875045.590202] [<ffffffff815093d8>] ? wait_for_completion+0xa8/0x120
[875045.590205] [<ffffffff81094a80>] ? wake_up_state+0x10/0x10
[875045.590210] [<ffffffffa0029eb0>] ? usb_sg_wait+0x120/0x180 [usbcore]
[875045.590212] [<ffffffffa09c92e4>] ? perform_sglist+0xf4/0x170 [usbtest]
[875045.590214] [<ffffffffa09c91e0>] ? free_sglist+0xb0/0xb0 [usbtest]
[875045.590216] [<ffffffffa09cbd13>] ? usbtest_ioctl+0x1d3/0x14b6 [usbtest]
[875045.590221] [<ffffffffa0031cf5>] ? proc_ioctl+0x135/0x210 [usbcore]
[875045.590225] [<ffffffffa00340d7>] ? usbdev_do_ioctl+0x267/0x1170 [usbcore]
[875045.590230] [<ffffffffa0034ffa>] ? usbdev_ioctl+0xa/0x10 [usbcore]
[875045.590233] [<ffffffff811b750f>] ? do_vfs_ioctl+0x2cf/0x4b0
[875045.590234] [<ffffffff811b7771>] ? SyS_ioctl+0x81/0xa0
[875045.590236] [<ffffffff8150c26d>] ? system_call_fast_compare_end+0x10/0x15
[875165.640330] INFO: task testusb:18493 blocked for more than 120 seconds.
[875165.640334] Not tainted 3.16-2-amd64 #1
[875165.640335] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[875165.640336] testusb D ffff88031c208f38 0 18493 18217 0x00000000
[875165.640339] ffff88031c208ae0 0000000000000082 0000000000014240 ffff8802a7127fd8
[875165.640341] 0000000000014240 ffff88031c208ae0 ffff8802a7127de0 ffff8802a7127be0
[875165.640343] ffff8802a7127dd8 ffff88031c208ae0 0000000000000001 0000000000000001
[875165.640345] Call Trace:
[875165.640352] [<ffffffff81507ec9>] ? schedule_timeout+0x229/0x2a0
[875165.640376] [<ffffffffa0026736>] ? usb_hcd_submit_urb+0xa6/0xa60 [usbcore]
[875165.640380] [<ffffffff815093d8>] ? wait_for_completion+0xa8/0x120
[875165.640383] [<ffffffff81094a80>] ? wake_up_state+0x10/0x10
[875165.640389] [<ffffffffa0029eb0>] ? usb_sg_wait+0x120/0x180 [usbcore]
[875165.640392] [<ffffffffa09c92e4>] ? perform_sglist+0xf4/0x170 [usbtest]
[875165.640394] [<ffffffffa09c91e0>] ? free_sglist+0xb0/0xb0 [usbtest]
[875165.640397] [<ffffffffa09cbd13>] ? usbtest_ioctl+0x1d3/0x14b6 [usbtest]
[875165.640403] [<ffffffffa0031cf5>] ? proc_ioctl+0x135/0x210 [usbcore]
[875165.640409] [<ffffffffa00340d7>] ? usbdev_do_ioctl+0x267/0x1170 [usbcore]
[875165.640415] [<ffffffffa0034ffa>] ? usbdev_ioctl+0xa/0x10 [usbcore]
[875165.640418] [<ffffffff811b750f>] ? do_vfs_ioctl+0x2cf/0x4b0
[875165.640420] [<ffffffff811b7771>] ? SyS_ioctl+0x81/0xa0
[875165.640422] [<ffffffff8150c26d>] ? system_call_fast_compare_end+0x10/0x15
[875285.690460] INFO: task testusb:18493 blocked for more than 120 seconds.
[875285.690464] Not tainted 3.16-2-amd64 #1
[875285.690466] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[875285.690467] testusb D ffff88031c208f38 0 18493 18217 0x00000000
[875285.690471] ffff88031c208ae0 0000000000000082 0000000000014240 ffff8802a7127fd8
[875285.690474] 0000000000014240 ffff88031c208ae0 ffff8802a7127de0 ffff8802a7127be0
[875285.690476] ffff8802a7127dd8 ffff88031c208ae0 0000000000000001 0000000000000001
[875285.690479] Call Trace:
[875285.690486] [<ffffffff81507ec9>] ? schedule_timeout+0x229/0x2a0
[875285.690515] [<ffffffffa0026736>] ? usb_hcd_submit_urb+0xa6/0xa60 [usbcore]
[875285.690520] [<ffffffff815093d8>] ? wait_for_completion+0xa8/0x120
[875285.690523] [<ffffffff81094a80>] ? wake_up_state+0x10/0x10
[875285.690532] [<ffffffffa0029eb0>] ? usb_sg_wait+0x120/0x180 [usbcore]
[875285.690536] [<ffffffffa09c92e4>] ? perform_sglist+0xf4/0x170 [usbtest]
[875285.690538] [<ffffffffa09c91e0>] ? free_sglist+0xb0/0xb0 [usbtest]
[875285.690541] [<ffffffffa09cbd13>] ? usbtest_ioctl+0x1d3/0x14b6 [usbtest]
[875285.690550] [<ffffffffa0031cf5>] ? proc_ioctl+0x135/0x210 [usbcore]
[875285.690559] [<ffffffffa00340d7>] ? usbdev_do_ioctl+0x267/0x1170 [usbcore]
[875285.690567] [<ffffffffa0034ffa>] ? usbdev_ioctl+0xa/0x10 [usbcore]
[875285.690570] [<ffffffff811b750f>] ? do_vfs_ioctl+0x2cf/0x4b0
[875285.690572] [<ffffffff811b7771>] ? SyS_ioctl+0x81/0xa0
[875285.690575] [<ffffffff8150c26d>] ? system_call_fast_compare_end+0x10/0x15
[875405.740543] INFO: task testusb:18493 blocked for more than 120 seconds.
[875405.740546] Not tainted 3.16-2-amd64 #1
[875405.740547] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[875405.740548] testusb D ffff88031c208f38 0 18493 18217 0x00000004
[875405.740550] ffff88031c208ae0 0000000000000082 0000000000014240 ffff8802a7127fd8
[875405.740552] 0000000000014240 ffff88031c208ae0 ffff8802a7127de0 ffff8802a7127be0
[875405.740553] ffff8802a7127dd8 ffff88031c208ae0 0000000000000001 0000000000000001
[875405.740555] Call Trace:
[875405.740561] [<ffffffff81507ec9>] ? schedule_timeout+0x229/0x2a0
[875405.740582] [<ffffffffa0026736>] ? usb_hcd_submit_urb+0xa6/0xa60 [usbcore]
[875405.740584] [<ffffffff815093d8>] ? wait_for_completion+0xa8/0x120
[875405.740587] [<ffffffff81094a80>] ? wake_up_state+0x10/0x10
[875405.740592] [<ffffffffa0029eb0>] ? usb_sg_wait+0x120/0x180 [usbcore]
[875405.740594] [<ffffffffa09c92e4>] ? perform_sglist+0xf4/0x170 [usbtest]
[875405.740596] [<ffffffffa09c91e0>] ? free_sglist+0xb0/0xb0 [usbtest]
[875405.740598] [<ffffffffa09cbd13>] ? usbtest_ioctl+0x1d3/0x14b6 [usbtest]
[875405.740603] [<ffffffffa0031cf5>] ? proc_ioctl+0x135/0x210 [usbcore]
[875405.740607] [<ffffffffa00340d7>] ? usbdev_do_ioctl+0x267/0x1170 [usbcore]
[875405.740612] [<ffffffffa0034ffa>] ? usbdev_ioctl+0xa/0x10 [usbcore]
[875405.740614] [<ffffffff811b750f>] ? do_vfs_ioctl+0x2cf/0x4b0
[875405.740616] [<ffffffff811b7771>] ? SyS_ioctl+0x81/0xa0
[875405.740617] [<ffffffff8150c26d>] ? system_call_fast_compare_end+0x10/0x15
[875525.790697] INFO: task testusb:18493 blocked for more than 120 seconds.
[875525.790700] Not tainted 3.16-2-amd64 #1
[875525.790701] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[875525.790702] testusb D ffff88031c208f38 0 18493 1 0x00000004
[875525.790705] ffff88031c208ae0 0000000000000082 0000000000014240 ffff8802a7127fd8
[875525.790706] 0000000000014240 ffff88031c208ae0 ffff8802a7127de0 ffff8802a7127be0
[875525.790707] ffff8802a7127dd8 ffff88031c208ae0 0000000000000001 0000000000000001
[875525.790709] Call Trace:
[875525.790714] [<ffffffff81507ec9>] ? schedule_timeout+0x229/0x2a0
[875525.790737] [<ffffffffa0026736>] ? usb_hcd_submit_urb+0xa6/0xa60 [usbcore]
[875525.790739] [<ffffffff815093d8>] ? wait_for_completion+0xa8/0x120
[875525.790742] [<ffffffff81094a80>] ? wake_up_state+0x10/0x10
[875525.790747] [<ffffffffa0029eb0>] ? usb_sg_wait+0x120/0x180 [usbcore]
[875525.790749] [<ffffffffa09c92e4>] ? perform_sglist+0xf4/0x170 [usbtest]
[875525.790751] [<ffffffffa09c91e0>] ? free_sglist+0xb0/0xb0 [usbtest]
[875525.790752] [<ffffffffa09cbd13>] ? usbtest_ioctl+0x1d3/0x14b6 [usbtest]
[875525.790758] [<ffffffffa0031cf5>] ? proc_ioctl+0x135/0x210 [usbcore]
[875525.790762] [<ffffffffa00340d7>] ? usbdev_do_ioctl+0x267/0x1170 [usbcore]
[875525.790767] [<ffffffffa0034ffa>] ? usbdev_ioctl+0xa/0x10 [usbcore]
[875525.790769] [<ffffffff811b750f>] ? do_vfs_ioctl+0x2cf/0x4b0
[875525.790770] [<ffffffff811b7771>] ? SyS_ioctl+0x81/0xa0
[875525.790772] [<ffffffff8150c26d>] ? system_call_fast_compare_end+0x10/0x15
[875645.840821] INFO: task testusb:18493 blocked for more than 120 seconds.
[875645.840825] Not tainted 3.16-2-amd64 #1
[875645.840826] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[875645.840826] testusb D ffff88031c208f38 0 18493 1 0x00000004
[875645.840829] ffff88031c208ae0 0000000000000082 0000000000014240 ffff8802a7127fd8
[875645.840831] 0000000000014240 ffff88031c208ae0 ffff8802a7127de0 ffff8802a7127be0
[875645.840832] ffff8802a7127dd8 ffff88031c208ae0 0000000000000001 0000000000000001
[875645.840834] Call Trace:
[875645.840839] [<ffffffff81507ec9>] ? schedule_timeout+0x229/0x2a0
[875645.840861] [<ffffffffa0026736>] ? usb_hcd_submit_urb+0xa6/0xa60 [usbcore]
[875645.840863] [<ffffffff815093d8>] ? wait_for_completion+0xa8/0x120
[875645.840866] [<ffffffff81094a80>] ? wake_up_state+0x10/0x10
[875645.840871] [<ffffffffa0029eb0>] ? usb_sg_wait+0x120/0x180 [usbcore]
[875645.840873] [<ffffffffa09c92e4>] ? perform_sglist+0xf4/0x170 [usbtest]
[875645.840875] [<ffffffffa09c91e0>] ? free_sglist+0xb0/0xb0 [usbtest]
[875645.840877] [<ffffffffa09cbd13>] ? usbtest_ioctl+0x1d3/0x14b6 [usbtest]
[875645.840882] [<ffffffffa0031cf5>] ? proc_ioctl+0x135/0x210 [usbcore]
[875645.840886] [<ffffffffa00340d7>] ? usbdev_do_ioctl+0x267/0x1170 [usbcore]
[875645.840891] [<ffffffffa0034ffa>] ? usbdev_ioctl+0xa/0x10 [usbcore]
[875645.840893] [<ffffffff811b750f>] ? do_vfs_ioctl+0x2cf/0x4b0
[875645.840894] [<ffffffff811b7771>] ? SyS_ioctl+0x81/0xa0
[875645.840896] [<ffffffff8150c26d>] ? system_call_fast_compare_end+0x10/0x15
--
balbi
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