I acquired some Jetson TK1 boards on eBay, but they did not include the OEM USB micro-B cables. I’m trying to flash them to the latest release for that board (L4T 21.8) using an Ubuntu 14.04 VM I stood up just for this purpose. The boot filesystem is ext4 and I’ve already tried to address the kernel hung task messages by reducing kernel memory claims with sysctl vm.dirty_ratio=10 & vm.dirty_background_ratio=5. I’ve tried a few known good micro-B USB cables I have on hand, but ./flash.sh consistently hangs indefinitely after calling ./bootloader/nvflash. I’ve let it sit over night, so it has had many hours to finish what is supposedly a process that takes 10-30 minutes. If I echo 0 > /proc/sys/kernel/hung_task_timeout_secs it suppresses the kernel timeout errors in syslog but the nvflash still hangs as it did before. Is there something unique and required about the OEM USB micro-B cable for flashing these boards? I’m getting this fault consistently on all five TK1 boards I’m trying to flash.
Relevant console logs below:
# lsusb
Bus 001 Device 002: ID 0955:7140 NVidia Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 002 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
# ./flash.sh -S 14580MiB jetson-tk1 mmcblk0p1
copying bctfile(/root/L4T_21.8/bootloader/ardbeg/BCT/PM375_Hynix_2GB_H5TC4G63AFR_H5TC4G63CFR_RDA_924MHz.cfg)... done.
copying bootloader(/root/L4T_21.8/bootloader/ardbeg/u-boot.bin)... done.
populating kernel to rootfs... done.
populating jetson-tk1_extlinux.conf.emmc to rootfs... done.
done.
Making system.img...
populating rootfs from /root/L4T_21.8/rootfs ... done.
Sync'ing system.img ... done.
Converting RAW image to Sparse image...
---- Raw to Sparse Image Converter v1.0 ----------------------------
0: RAW: 3772416( 921 blks) ==> 28:3772428
1: SKP: 32768( 8 blks) ==> 3772456:32780
...
1742: RAW: 1249280( 305 blks) ==> 2376606148:1249292
1743: SKP: 1862053888( 454603 blks) ==> 2377855440:1862053900
1744: RAW: 8192( 2 blks) ==> 2377855452:8204
1745: SKP: 255844352( 62462 blks) ==> 2377863656:255844364
-- Total: -----------------------------------------------------------
1746 CHUNK 15288238080(3732480 blks) ==> 2377863668(580528 blks)
done.
system.img built successfully.
copying dtbfile(/root/L4T_21.8/kernel/dtb/tegra124-jetson_tk1-pm375-000-c00-00.dtb)... done.
copying cfgfile(/root/L4T_21.8/bootloader/ardbeg/cfg/gnu_linux_fastboot_emmc_full.cfg) to flash.cfg... done.
creating gpt(ppt.img)...
*** GPT Parameters ***
Device Sector Size ------- 512
device size -------------- 15766388736
bootpart size ------------ 8388608
userpart size ------------ 15758000128
Erase Block Size --------- 2097152
FS Buffer size ----------- 4096
Partition Config file ---- flash.cfg
Visible partition flag --- GP1
Primary GPT output ------- PPT->ppt.img
Secondary GPT output ----- GPT->gpt.img
Target device name ------- none
*** PARTITION LAYOUT(20 partitions) ***
[ BCT] BH 0 16383 8.0MiB
[ PPT] UH 0 4095 2.0MiB ppt.img
[ PT] UH 4096 8191 2.0MiB
[ EBT] UH 8192 16383 4.0MiB u-boot.bin
[ LNX] UH 16384 49151 16.0MiB
[ SOS] UH 49152 61439 6.0MiB
[ NVC] UH 61440 65535 2.0MiB
[ MPB] UH 65536 77823 6.0MiB
[ MBP] UH 77824 90111 6.0MiB
[ GP1] UH 90112 94207 2.0MiB
[ APP] UV 94208 29954047 14580.0MiB system.img
[ DTB] UV 29954048 29962239 4.0MiB tegra124-jetson_tk1-pm375-000-c00-00.dtb
[ EFI] UV 29962240 30093311 64.0MiB
[ USP] UV 30093312 30101503 4.0MiB
[ TP1] UV 30101504 30109695 4.0MiB
[ TP2] UV 30109696 30117887 4.0MiB
[ TP3] UV 30117888 30126079 4.0MiB
[ WB0] UV 30126080 30130175 2.0MiB
[ UDA] UV 30130176 30773247 314.0MiB
[ GPT] UH 30773248 30777343 2.0MiB gpt.img
copying flasher(/root/L4T_21.8/bootloader/ardbeg/fastboot.bin)... done.
Existing flashapp(/root/L4T_21.8/bootloader/nvflash) reused.
*** Flashing target device started. ***
./nvflash --bct PM375_Hynix_2GB_H5TC4G63AFR_H5TC4G63CFR_RDA_924MHz.cfg --setbct --configfile flash.cfg --create --bl fastboot.bin --odmdata 0x6009C000 --go
Nvflash 4.13.0000 started
BR_CID: 0x340010017410c107100000000a068300
# cat /var/log/syslog
Oct 9 10:34:11 jetsonflasher kernel: [ 162.514111] usb 1-1: new high-speed USB device number 2 using ehci-pci
Oct 9 10:34:11 jetsonflasher kernel: [ 163.045567] usb 1-1: New USB device found, idVendor=0955, idProduct=7140
Oct 9 10:34:11 jetsonflasher kernel: [ 163.045573] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Oct 9 10:34:11 jetsonflasher kernel: [ 163.045577] usb 1-1: Product: APX
Oct 9 10:34:11 jetsonflasher kernel: [ 163.045580] usb 1-1: Manufacturer: NVIDIA Corp.
Oct 9 10:34:26 jetsonflasher kernel: [ 178.126969] EXT4-fs (loop0): mounted filesystem with ordered data mode. Opts: (null)
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130090] INFO: task nvflash:1469 blocked for more than 120 seconds.
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130119] Not tainted 4.4.0-142-generic #168~14.04.1-Ubuntu
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130142] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130171] nvflash D ec575d2c 0 1469 1404 0x00000000
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130175] ec575d4c 00000086 c1c6be00 ec575d2c c1031258 ec575d54 0aebc127 00000033
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130180] c1ab8a80 eff28b00 ec576000 7fffffff 00000000 ec575d58 c1788c0d ec575e18
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130183] ec575dbc c178b2c5 f6cbce00 ec575dd4 c109e3a5 00000002 eff30c00 c4d26402
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130187] Call Trace:
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130194] [<c1031258>] ? sched_clock+0x8/0x10
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130197] [<c1788c0d>] schedule+0x2d/0x80
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130199] [<c178b2c5>] schedule_timeout+0x1f5/0x280
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130203] [<c109e3a5>] ? select_task_rq_fair+0x615/0x770
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130206] [<c159bed1>] ? usb_submit_urb.part.6+0x2a1/0x550
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130208] [<c1031258>] ? sched_clock+0x8/0x10
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130211] [<c178992b>] wait_for_completion_timeout+0x8b/0x140
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130213] [<c1097860>] ? wake_up_q+0x70/0x70
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130215] [<c159c9b8>] usb_start_wait_urb+0x68/0x140
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130219] [<c11b74a5>] ? __kmalloc+0x1a5/0x220
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130221] [<c10977e4>] ? wake_up_process+0x14/0x20
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130223] [<c159bb09>] ? usb_alloc_urb+0x19/0x40
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130226] [<c159bb09>] ? usb_alloc_urb+0x19/0x40
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130230] [<c159cea9>] usb_bulk_msg+0x99/0x130
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130234] [<c15a84dd>] usbdev_do_ioctl+0x126d/0x1610
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130238] [<c148d3d5>] ? pty_write+0x65/0x90
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130242] [<c15a8880>] ? usbdev_do_ioctl+0x1610/0x1610
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130245] [<c15a888d>] usbdev_ioctl+0xd/0x10
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130248] [<c11e4e1d>] do_vfs_ioctl+0x31d/0x550
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130251] [<c1487dc0>] ? n_tty_open+0x90/0x90
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130253] [<c14831d0>] ? tty_paranoia_check+0x80/0x80
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130255] [<c11d3694>] ? vfs_write+0x134/0x1a0
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130257] [<c11e50b0>] SyS_ioctl+0x60/0x90
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130260] [<c1003532>] do_syscall_32_irqs_on+0x62/0xb0
Oct 9 10:37:28 jetsonflasher kernel: [ 360.130263] [<c178c4c5>] entry_INT80_32+0x31/0x31
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130093] INFO: task nvflash:1469 blocked for more than 120 seconds.
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130129] Not tainted 4.4.0-142-generic #168~14.04.1-Ubuntu
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130158] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130193] nvflash D ec575d2c 0 1469 1404 0x00000000
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130198] ec575d4c 00000086 c1c6be00 ec575d2c c1031258 ec575d54 0aebc127 00000033
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130204] c1ab8a80 eff28b00 ec576000 7fffffff 00000000 ec575d58 c1788c0d ec575e18
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130209] ec575dbc c178b2c5 f6cbce00 ec575dd4 c109e3a5 00000002 eff30c00 c4d26402
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130214] Call Trace:
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130221] [<c1031258>] ? sched_clock+0x8/0x10
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130225] [<c1788c0d>] schedule+0x2d/0x80
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130228] [<c178b2c5>] schedule_timeout+0x1f5/0x280
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130232] [<c109e3a5>] ? select_task_rq_fair+0x615/0x770
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130236] [<c159bed1>] ? usb_submit_urb.part.6+0x2a1/0x550
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130239] [<c1031258>] ? sched_clock+0x8/0x10
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130242] [<c178992b>] wait_for_completion_timeout+0x8b/0x140
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130245] [<c1097860>] ? wake_up_q+0x70/0x70
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130248] [<c159c9b8>] usb_start_wait_urb+0x68/0x140
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130252] [<c11b74a5>] ? __kmalloc+0x1a5/0x220
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130254] [<c10977e4>] ? wake_up_process+0x14/0x20
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130257] [<c159bb09>] ? usb_alloc_urb+0x19/0x40
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130260] [<c159bb09>] ? usb_alloc_urb+0x19/0x40
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130263] [<c159cea9>] usb_bulk_msg+0x99/0x130
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130266] [<c15a84dd>] usbdev_do_ioctl+0x126d/0x1610
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130270] [<c148d3d5>] ? pty_write+0x65/0x90
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130274] [<c15a8880>] ? usbdev_do_ioctl+0x1610/0x1610
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130276] [<c15a888d>] usbdev_ioctl+0xd/0x10
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130280] [<c11e4e1d>] do_vfs_ioctl+0x31d/0x550
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130283] [<c1487dc0>] ? n_tty_open+0x90/0x90
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130286] [<c14831d0>] ? tty_paranoia_check+0x80/0x80
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130288] [<c11d3694>] ? vfs_write+0x134/0x1a0
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130291] [<c11e50b0>] SyS_ioctl+0x60/0x90
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130294] [<c1003532>] do_syscall_32_irqs_on+0x62/0xb0
Oct 9 10:39:28 jetsonflasher kernel: [ 480.130297] [<c178c4c5>] entry_INT80_32+0x31/0x31
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130091] INFO: task nvflash:1469 blocked for more than 120 seconds.
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130127] Not tainted 4.4.0-142-generic #168~14.04.1-Ubuntu
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130156] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130192] nvflash D ec575d2c 0 1469 1404 0x00000000
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130197] ec575d4c 00000086 c1c6be00 ec575d2c c1031258 ec575d54 0aebc127 00000033
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130203] c1ab8a80 eff28b00 ec576000 7fffffff 00000000 ec575d58 c1788c0d ec575e18
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130209] ec575dbc c178b2c5 f6cbce00 ec575dd4 c109e3a5 00000002 eff30c00 c4d26402
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130217] Call Trace:
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130227] [<c1031258>] ? sched_clock+0x8/0x10
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130232] [<c1788c0d>] schedule+0x2d/0x80
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130236] [<c178b2c5>] schedule_timeout+0x1f5/0x280
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130240] [<c109e3a5>] ? select_task_rq_fair+0x615/0x770
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130244] [<c159bed1>] ? usb_submit_urb.part.6+0x2a1/0x550
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130248] [<c1031258>] ? sched_clock+0x8/0x10
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130250] [<c178992b>] wait_for_completion_timeout+0x8b/0x140
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130253] [<c1097860>] ? wake_up_q+0x70/0x70
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130256] [<c159c9b8>] usb_start_wait_urb+0x68/0x140
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130260] [<c11b74a5>] ? __kmalloc+0x1a5/0x220
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130263] [<c10977e4>] ? wake_up_process+0x14/0x20
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130265] [<c159bb09>] ? usb_alloc_urb+0x19/0x40
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130268] [<c159bb09>] ? usb_alloc_urb+0x19/0x40
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130271] [<c159cea9>] usb_bulk_msg+0x99/0x130
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130274] [<c15a84dd>] usbdev_do_ioctl+0x126d/0x1610
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130278] [<c148d3d5>] ? pty_write+0x65/0x90
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130282] [<c15a8880>] ? usbdev_do_ioctl+0x1610/0x1610
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130284] [<c15a888d>] usbdev_ioctl+0xd/0x10
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130288] [<c11e4e1d>] do_vfs_ioctl+0x31d/0x550
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130291] [<c1487dc0>] ? n_tty_open+0x90/0x90
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130293] [<c14831d0>] ? tty_paranoia_check+0x80/0x80
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130296] [<c11d3694>] ? vfs_write+0x134/0x1a0
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130299] [<c11e50b0>] SyS_ioctl+0x60/0x90
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130302] [<c1003532>] do_syscall_32_irqs_on+0x62/0xb0
Oct 9 10:41:28 jetsonflasher kernel: [ 600.130305] [<c178c4c5>] entry_INT80_32+0x31/0x31
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130105] INFO: task nvflash:1469 blocked for more than 120 seconds.
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130169] Not tainted 4.4.0-142-generic #168~14.04.1-Ubuntu
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130198] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130233] nvflash D ec575d2c 0 1469 1404 0x00000000
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130248] ec575d4c 00000086 c1c6be00 ec575d2c c1031258 ec575d54 0aebc127 00000033
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130254] c1ab8a80 eff28b00 ec576000 7fffffff 00000000 ec575d58 c1788c0d ec575e18
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130258] ec575dbc c178b2c5 f6cbce00 ec575dd4 c109e3a5 00000002 eff30c00 c4d26402
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130263] Call Trace:
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130271] [<c1031258>] ? sched_clock+0x8/0x10
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130275] [<c1788c0d>] schedule+0x2d/0x80
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130278] [<c178b2c5>] schedule_timeout+0x1f5/0x280
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130282] [<c109e3a5>] ? select_task_rq_fair+0x615/0x770
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130286] [<c159bed1>] ? usb_submit_urb.part.6+0x2a1/0x550
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130289] [<c1031258>] ? sched_clock+0x8/0x10
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130293] [<c178992b>] wait_for_completion_timeout+0x8b/0x140
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130298] [<c1097860>] ? wake_up_q+0x70/0x70
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130302] [<c159c9b8>] usb_start_wait_urb+0x68/0x140
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130308] [<c11b74a5>] ? __kmalloc+0x1a5/0x220
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130312] [<c10977e4>] ? wake_up_process+0x14/0x20
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130315] [<c159bb09>] ? usb_alloc_urb+0x19/0x40
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130319] [<c159bb09>] ? usb_alloc_urb+0x19/0x40
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130322] [<c159cea9>] usb_bulk_msg+0x99/0x130
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130325] [<c15a84dd>] usbdev_do_ioctl+0x126d/0x1610
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130329] [<c148d3d5>] ? pty_write+0x65/0x90
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130333] [<c15a8880>] ? usbdev_do_ioctl+0x1610/0x1610
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130335] [<c15a888d>] usbdev_ioctl+0xd/0x10
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130339] [<c11e4e1d>] do_vfs_ioctl+0x31d/0x550
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130342] [<c1487dc0>] ? n_tty_open+0x90/0x90
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130344] [<c14831d0>] ? tty_paranoia_check+0x80/0x80
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130347] [<c11d3694>] ? vfs_write+0x134/0x1a0
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130350] [<c11e50b0>] SyS_ioctl+0x60/0x90
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130353] [<c1003532>] do_syscall_32_irqs_on+0x62/0xb0
Oct 9 10:43:28 jetsonflasher kernel: [ 720.130356] [<c178c4c5>] entry_INT80_32+0x31/0x31