On 01/13/2017 12:01 PM, Tony Lindgren wrote:
> Commit fdea2d09b997 ("dmaengine: cppi41: Add basic PM runtime support")
> together with recent MUSB changes allowed USB and DMA on BeagleBone to idle
> when no cable is connected. But looks like few corner case issues still
> remain.
>
> Looks like just by re-plugging USB cable about ten or so times on BeagleBone
> when configured in USB peripheral mode we can get warnings and eventually
> trigger an oops in cppi41 DMA:
>
> WARNING: CPU: 0 PID: 14 at drivers/dma/cppi41.c:1154 cppi41_runtime_suspend+
> x28/0x38 [cppi41]
> ...
>
> WARNING: CPU: 0 PID: 14 at drivers/dma/cppi41.c:452
> push_desc_queue+0x94/0x9c [cppi41]
> ...
>
> Unable to handle kernel NULL pointer dereference at virtual
> address 00000104
> pgd = c0004000
> [00000104] *pgd=00000000
> Internal error: Oops: 805 [#1] SMP ARM
> ...
> [<bf0d92cc>] (cppi41_runtime_resume [cppi41]) from [<c0589838>]
> (__rpm_callback+0xc0/0x214)
> [<c0589838>] (__rpm_callback) from [<c05899ac>] (rpm_callback+0x20/0x80)
> [<c05899ac>] (rpm_callback) from [<c0589460>] (rpm_resume+0x504/0x78c)
> [<c0589460>] (rpm_resume) from [<c058a1a0>] (pm_runtime_work+0x60/0xa8)
> [<c058a1a0>] (pm_runtime_work) from [<c0156120>]
> (process_one_work+0x2b4/0x808)
>
> This is because of a race with runtime PM and cppi41_dma_issue_pending()
> as reported by Alexandre Bailon <[email protected]> in earlier
> set of patches. Based on mailing list discussions we however came to the
> conclusion that a different fix from Alexandre's fix is needed in order
> to guarantee that DMA is really active when we try to use it.
>
> To fix the issue, we need to add a driver specific flag as we otherwise
> can have -EINPROGRESS state set by runtime PM and can't rely on
> pm_runtime_active() to tell us when we can use the DMA.
>
> And we need to make sure the DMA transfers get triggered in the queued
> order. So let's always queue the transfers, then flush the queue
> from both cppi41_dma_issue_pending() and cppi41_runtime_resume()
> as suggested by Grygorii Strashko <[email protected]> in an
> earlier example patch.
>
> For reference, this is also documented in Documentation/power/runtime_pm.txt
> in the example at the end of the file as pointed out by Grygorii Strashko
> <[email protected]>.
>
> Based on earlier patches from Alexandre Bailon <[email protected]>
> and Grygorii Strashko <[email protected]> modified based on
> testing and what was discussed on the mailing lists.
>
> Fixes: fdea2d09b997 ("dmaengine: cppi41: Add basic PM runtime support")
> Cc: Andy Shevchenko <[email protected]>
> Cc: Bin Liu <[email protected]>
> Cc: Grygorii Strashko <[email protected]>
> Cc: Kevin Hilman <[email protected]>
> Cc: Patrick Titiano <[email protected]>
> Cc: Sergei Shtylyov <[email protected]>
> Reported-by: Alexandre Bailon <[email protected]>
> Signed-off-by: Tony Lindgren <[email protected]>
> ---
>
> Alexandre & Grygorii, can you guys please review and test?
I've just tested it on BBB. And it triggers warning from IRQ
root@am335x-evm:~# [ 242.280546] ------------[ cut here ]------------
[ 242.285532] WARNING: CPU: 0 PID: 0 at drivers/dma/cppi41.c:330
cppi41_irq+0x228/0x260 [cppi41]
[ 242.335164] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W
4.10.0-rc3-00560-g51afc29 #133
[ 242.344601] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 242.351084] [<c011013c>] (unwind_backtrace) from [<c010c300>]
(show_stack+0x10/0x14)
[ 242.359269] [<c010c300>] (show_stack) from [<c04a0278>]
(dump_stack+0xac/0xe0)
[ 242.366919] [<c04a0278>] (dump_stack) from [<c013700c>] (__warn+0xd8/0x104)
[ 242.374282] [<c013700c>] (__warn) from [<c01370e4>]
(warn_slowpath_null+0x20/0x28)
[ 242.382299] [<c01370e4>] (warn_slowpath_null) from [<bf1d0384>]
(cppi41_irq+0x228/0x260 [cppi41])
[ 242.391714] [<bf1d0384>] (cppi41_irq [cppi41]) from [<c01a6888>]
(__handle_irq_event_percpu+0x48/0x3b4)
[ 242.401727] [<c01a6888>] (__handle_irq_event_percpu) from [<c01a6c10>]
(handle_irq_event_percpu+0x1c/0x58)
[ 242.412017] [<c01a6c10>] (handle_irq_event_percpu) from [<c01a6c84>]
(handle_irq_event+0x38/0x5c)
[ 242.421477] [<c01a6c84>] (handle_irq_event) from [<c01aa004>]
(handle_level_irq+0xc0/0x154)
[ 242.430378] [<c01aa004>] (handle_level_irq) from [<c01a5b9c>]
(generic_handle_irq+0x20/0x34)
[ 242.439378] [<c01a5b9c>] (generic_handle_irq) from [<c01a60f0>]
(__handle_domain_irq+0x64/0xe0)
[ 242.448660] [<c01a60f0>] (__handle_domain_irq) from [<c07f92f0>]
(__irq_svc+0x70/0x98)
[ 242.457117] [<c07f92f0>] (__irq_svc) from [<c010836c>]
(arch_cpu_idle+0x20/0x3c)
[ 242.464935] [<c010836c>] (arch_cpu_idle) from [<c018bf7c>]
(do_idle+0x164/0x218)
[ 242.472748] [<c018bf7c>] (do_idle) from [<c018c39c>]
(cpu_startup_entry+0x18/0x1c)
[ 242.480758] [<c018c39c>] (cpu_startup_entry) from [<c0b00c30>]
(start_kernel+0x344/0x3bc)
[ 242.489376] ---[ end trace 12c5b6488c1e8c75 ]---
[ 242.496525] usb 1-1.3: USB disconnect, device number 4
test sequence:
- plug usb hub + cd card reader
- plug usb stick in hub
37 mount /dev/sdb /media
38 ls /media/
39 rm /media/data
40 time dd if=/dev/zero of=/media/data bs=128k count=100
41 umount /media
- unplug USB stick - > Warning
^ The same sequence without Hub -- > no warnings
When I plug-unplug USB stick from Hub I can reproduce it pretty often :(
but it can be different issue :(
Patch by itself looks good
root@am335x-evm:~# [ 590.948093] usb 1-1: new high-speed USB device number 6
using musb-hdrc
[ 591.119731] usb 1-1: New USB device found, idVendor=058f, idProduct=6254
[ 591.126841] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 591.134565] usb 1-1: Product: USB2.0Hub
[ 591.146776] hub 1-1:1.0: USB hub found
[ 591.151375] hub 1-1:1.0: 4 ports detected
[ 591.487947] usb 1-1.4: new high-speed USB device number 7 using musb-hdrc
[ 591.631141] usb 1-1.4: New USB device found, idVendor=058f, idProduct=6366
[ 591.638474] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 591.646140] usb 1-1.4: Product: Mass Storage Device
[ 591.651336] usb 1-1.4: Manufacturer: Generic
[ 591.655817] usb 1-1.4: SerialNumber: 058F0O1111B1
[ 591.665677] usb-storage 1-1.4:1.0: USB Mass Storage device detected
[ 591.679987] scsi host0: usb-storage 1-1.4:1.0
[ 592.731385] scsi 0:0:0:0: Direct-Access Multi Flash Reader 1.00
PQ: 0 ANSI: 0
[ 592.769590] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 593.948402] ------------[ cut here ]------------
[ 593.953396] WARNING: CPU: 0 PID: 0 at drivers/dma/cppi41.c:330
cppi41_irq+0x228/0x260 [cppi41]
[ 593.962470] Modules linked in: usb_storage evdev musb_dsps musb_hdrc
udc_core cppi41 phy_am335x usbcore phy_generic usb_common phy_am335x_control
snd_soc_simple_card snd_soc_simple_card_utils snd_soc_davinci_mcasp tps65218_pn
[ 594.003038] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W
4.10.0-rc3-00560-g51afc29 #133
[ 594.012473] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 594.018958] [<c011013c>] (unwind_backtrace) from [<c010c300>]
(show_stack+0x10/0x14)
[ 594.027143] [<c010c300>] (show_stack) from [<c04a0278>]
(dump_stack+0xac/0xe0)
[ 594.034793] [<c04a0278>] (dump_stack) from [<c013700c>] (__warn+0xd8/0x104)
[ 594.042158] [<c013700c>] (__warn) from [<c01370e4>]
(warn_slowpath_null+0x20/0x28)
[ 594.050174] [<c01370e4>] (warn_slowpath_null) from [<bf1d0384>]
(cppi41_irq+0x228/0x260 [cppi41])
[ 594.059590] [<bf1d0384>] (cppi41_irq [cppi41]) from [<c01a6888>]
(__handle_irq_event_percpu+0x48/0x3b4)
[ 594.069602] [<c01a6888>] (__handle_irq_event_percpu) from [<c01a6c10>]
(handle_irq_event_percpu+0x1c/0x58)
[ 594.079892] [<c01a6c10>] (handle_irq_event_percpu) from [<c01a6c84>]
(handle_irq_event+0x38/0x5c)
[ 594.089344] [<c01a6c84>] (handle_irq_event) from [<c01aa004>]
(handle_level_irq+0xc0/0x154)
[ 594.098245] [<c01aa004>] (handle_level_irq) from [<c01a5b9c>]
(generic_handle_irq+0x20/0x34)
[ 594.107243] [<c01a5b9c>] (generic_handle_irq) from [<c01a60f0>]
(__handle_domain_irq+0x64/0xe0)
[ 594.116525] [<c01a60f0>] (__handle_domain_irq) from [<c07f92f0>]
(__irq_svc+0x70/0x98)
[ 594.124980] [<c07f92f0>] (__irq_svc) from [<c010836c>]
(arch_cpu_idle+0x20/0x3c)
[ 594.132798] [<c010836c>] (arch_cpu_idle) from [<c018bf7c>]
(do_idle+0x164/0x218)
[ 594.140610] [<c018bf7c>] (do_idle) from [<c018c39c>]
(cpu_startup_entry+0x18/0x1c)
[ 594.148619] [<c018c39c>] (cpu_startup_entry) from [<c0b00c30>]
(start_kernel+0x344/0x3bc)
[ 594.157238] ---[ end trace 12c5b6488c1e8c76 ]---
[ 594.467931] usb 1-1.3: new high-speed USB device number 8 using musb-hdrc
[ 594.672753] usb 1-1.3: New USB device found, idVendor=058f, idProduct=6387
[ 594.680179] usb 1-1.3: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 594.688032] usb 1-1.3: Product: Mass Storage Device
[ 594.693192] usb 1-1.3: Manufacturer: Generic
[ 594.697708] usb 1-1.3: SerialNumber: OU2ACT49
[ 594.710778] usb-storage 1-1.3:1.0: USB Mass Storage device detected
[ 594.730376] scsi host1: usb-storage 1-1.3:1.0
[ 595.771756] scsi 1:0:0:0: Direct-Access JetFlash TS128MJF2A 8.07
PQ: 0 ANSI: 2
[ 595.799177] sd 1:0:0:0: [sdb] 255998 512-byte logical blocks: (131 MB/125
MiB)
[ 595.818767] sd 1:0:0:0: [sdb] Write Protect is off
[ 595.838684] sd 1:0:0:0: [sdb] No Caching mode page found
[ 595.844350] sd 1:0:0:0: [sdb] Assuming drive cache: write through
[ 595.905633] sdb:
[ 595.921145] sd 1:0:0:0: [sdb] Attached SCSI removable disk
[ 596.556411] FAT-fs (sdb): Volume was not properly unmounted. Some data may
be corrupt. Please run fsck.
[ 615.452300] ------------[ cut here ]------------
[ 615.457291] WARNING: CPU: 0 PID: 0 at drivers/dma/cppi41.c:330
cppi41_irq+0x228/0x260 [cppi41]
[ 615.466367] Modules linked in: usb_storage evdev musb_dsps musb_hdrc
udc_core cppi41 phy_am335x usbcore phy_generic usb_common phy_am335x_control
snd_soc_simple_card snd_soc_simple_card_utils snd_soc_davinci_mcasp tps65218_pn
[ 615.506931] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W
4.10.0-rc3-00560-g51afc29 #133
[ 615.516366] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 615.522850] [<c011013c>] (unwind_backtrace) from [<c010c300>]
(show_stack+0x10/0x14)
[ 615.531034] [<c010c300>] (show_stack) from [<c04a0278>]
(dump_stack+0xac/0xe0)
[ 615.538685] [<c04a0278>] (dump_stack) from [<c013700c>] (__warn+0xd8/0x104)
[ 615.546049] [<c013700c>] (__warn) from [<c01370e4>]
(warn_slowpath_null+0x20/0x28)
[ 615.554066] [<c01370e4>] (warn_slowpath_null) from [<bf1d0384>]
(cppi41_irq+0x228/0x260 [cppi41])
[ 615.563481] [<bf1d0384>] (cppi41_irq [cppi41]) from [<c01a6888>]
(__handle_irq_event_percpu+0x48/0x3b4)
[ 615.573500] [<c01a6888>] (__handle_irq_event_percpu) from [<c01a6c10>]
(handle_irq_event_percpu+0x1c/0x58)
[ 615.583789] [<c01a6c10>] (handle_irq_event_percpu) from [<c01a6c84>]
(handle_irq_event+0x38/0x5c)
[ 615.593251] [<c01a6c84>] (handle_irq_event) from [<c01aa004>]
(handle_level_irq+0xc0/0x154)
[ 615.602151] [<c01aa004>] (handle_level_irq) from [<c01a5b9c>]
(generic_handle_irq+0x20/0x34)
[ 615.611144] [<c01a5b9c>] (generic_handle_irq) from [<c01a60f0>]
(__handle_domain_irq+0x64/0xe0)
[ 615.620432] [<c01a60f0>] (__handle_domain_irq) from [<c07f92f0>]
(__irq_svc+0x70/0x98)
[ 615.628893] [<c07f92f0>] (__irq_svc) from [<c010836c>]
(arch_cpu_idle+0x20/0x3c)
[ 615.636786] [<c010836c>] (arch_cpu_idle) from [<c018bf7c>]
(do_idle+0x164/0x218)
[ 615.644677] [<c018bf7c>] (do_idle) from [<c018c39c>]
(cpu_startup_entry+0x18/0x1c)
[ 615.652766] [<c018c39c>] (cpu_startup_entry) from [<c0b00c30>]
(start_kernel+0x344/0x3bc)
[ 615.661470] ---[ end trace 12c5b6488c1e8c77 ]---
[ 615.676487] usb 1-1.3: USB disconnect, device number 8
root@am335x-evm:~#
root@am335x-evm:~# [ 626.008636] usb 1-1: USB disconnect, device number 6
[ 626.013945] usb 1-1.4: USB disconnect, device number 7
[ 630.538101] usb 1-1: new high-speed USB device number 9 using musb-hdrc
[ 630.709737] usb 1-1: New USB device found, idVendor=058f, idProduct=6254
[ 630.716845] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 630.724564] usb 1-1: Product: USB2.0Hub
[ 630.736885] hub 1-1:1.0: USB hub found
[ 630.750975] hub 1-1:1.0: 4 ports detected
[ 631.077965] usb 1-1.4: new high-speed USB device number 10 using musb-hdrc
[ 631.211138] usb 1-1.4: New USB device found, idVendor=058f, idProduct=6366
[ 631.218452] usb 1-1.4: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 631.226116] usb 1-1.4: Product: Mass Storage Device
[ 631.231311] usb 1-1.4: Manufacturer: Generic
[ 631.235793] usb 1-1.4: SerialNumber: 058F0O1111B1
[ 631.245578] usb-storage 1-1.4:1.0: USB Mass Storage device detected
[ 631.259530] scsi host0: usb-storage 1-1.4:1.0
[ 632.333419] scsi 0:0:0:0: Direct-Access Multi Flash Reader 1.00
PQ: 0 ANSI: 0
[ 632.389945] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 637.378367] ------------[ cut here ]------------
[ 637.383358] WARNING: CPU: 0 PID: 0 at drivers/dma/cppi41.c:330
cppi41_irq+0x228/0x260 [cppi41]
[ 637.392431] Modules linked in: usb_storage evdev musb_dsps musb_hdrc
udc_core cppi41 phy_am335x usbcore phy_generic usb_common phy_am335x_control
snd_soc_simple_card snd_soc_simple_card_utils snd_soc_davinci_mcasp tps65218_pn
[ 637.432996] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W
4.10.0-rc3-00560-g51afc29 #133
[ 637.442432] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 637.448914] [<c011013c>] (unwind_backtrace) from [<c010c300>]
(show_stack+0x10/0x14)
[ 637.457099] [<c010c300>] (show_stack) from [<c04a0278>]
(dump_stack+0xac/0xe0)
[ 637.464748] [<c04a0278>] (dump_stack) from [<c013700c>] (__warn+0xd8/0x104)
[ 637.472112] [<c013700c>] (__warn) from [<c01370e4>]
(warn_slowpath_null+0x20/0x28)
[ 637.480130] [<c01370e4>] (warn_slowpath_null) from [<bf1d0384>]
(cppi41_irq+0x228/0x260 [cppi41])
[ 637.489545] [<bf1d0384>] (cppi41_irq [cppi41]) from [<c01a6888>]
(__handle_irq_event_percpu+0x48/0x3b4)
[ 637.499565] [<c01a6888>] (__handle_irq_event_percpu) from [<c01a6c10>]
(handle_irq_event_percpu+0x1c/0x58)
[ 637.509852] [<c01a6c10>] (handle_irq_event_percpu) from [<c01a6c84>]
(handle_irq_event+0x38/0x5c)
[ 637.519315] [<c01a6c84>] (handle_irq_event) from [<c01aa004>]
(handle_level_irq+0xc0/0x154)
[ 637.528216] [<c01aa004>] (handle_level_irq) from [<c01a5b9c>]
(generic_handle_irq+0x20/0x34)
[ 637.537217] [<c01a5b9c>] (generic_handle_irq) from [<c01a60f0>]
(__handle_domain_irq+0x64/0xe0)
[ 637.546495] [<c01a60f0>] (__handle_domain_irq) from [<c07f92f0>]
(__irq_svc+0x70/0x98)
[ 637.554954] [<c07f92f0>] (__irq_svc) from [<c010836c>]
(arch_cpu_idle+0x20/0x3c)
[ 637.562772] [<c010836c>] (arch_cpu_idle) from [<c018bf7c>]
(do_idle+0x164/0x218)
[ 637.570585] [<c018bf7c>] (do_idle) from [<c018c39c>]
(cpu_startup_entry+0x18/0x1c)
[ 637.578594] [<c018c39c>] (cpu_startup_entry) from [<c0b00c30>]
(start_kernel+0x344/0x3bc)
[ 637.587211] ---[ end trace 12c5b6488c1e8c78 ]---
[ 637.897902] usb 1-1.3: new high-speed USB device number 11 using musb-hdrc
[ 638.032611] usb 1-1.3: New USB device found, idVendor=058f, idProduct=6387
[ 638.040050] usb 1-1.3: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 638.047911] usb 1-1.3: Product: Mass Storage Device
[ 638.053072] usb 1-1.3: Manufacturer: Generic
[ 638.057587] usb 1-1.3: SerialNumber: OU2ACT49
[ 638.070774] usb-storage 1-1.3:1.0: USB Mass Storage device detected
[ 638.089869] scsi host1: usb-storage 1-1.3:1.0
[ 639.133691] scsi 1:0:0:0: Direct-Access JetFlash TS128MJF2A 8.07
PQ: 0 ANSI: 2
[ 639.167142] sd 1:0:0:0: [sdb] 255998 512-byte logical blocks: (131 MB/125
MiB)
[ 639.189067] sd 1:0:0:0: [sdb] Write Protect is off
[ 639.200963] sd 1:0:0:0: [sdb] No Caching mode page found
[ 639.206621] sd 1:0:0:0: [sdb] Assuming drive cache: write through
[ 639.260360] sdb:
[ 639.295633] sd 1:0:0:0: [sdb] Attached SCSI removable disk
[ 639.937425] FAT-fs (sdb): Volume was not properly unmounted. Some data may
be corrupt. Please run fsck.
[ 643.522357] ------------[ cut here ]------------
[ 643.527345] WARNING: CPU: 0 PID: 0 at drivers/dma/cppi41.c:330
cppi41_irq+0x228/0x260 [cppi41]
[ 643.536418] Modules linked in: usb_storage evdev musb_dsps musb_hdrc
udc_core cppi41 phy_am335x usbcore phy_generic usb_common phy_am335x_control
snd_soc_simple_card snd_soc_simple_card_utils snd_soc_davinci_mcasp tps65218_pn
[ 643.576981] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W
4.10.0-rc3-00560-g51afc29 #133
[ 643.586416] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 643.592898] [<c011013c>] (unwind_backtrace) from [<c010c300>]
(show_stack+0x10/0x14)
[ 643.601082] [<c010c300>] (show_stack) from [<c04a0278>]
(dump_stack+0xac/0xe0)
[ 643.608733] [<c04a0278>] (dump_stack) from [<c013700c>] (__warn+0xd8/0x104)
[ 643.616095] [<c013700c>] (__warn) from [<c01370e4>]
(warn_slowpath_null+0x20/0x28)
[ 643.624111] [<c01370e4>] (warn_slowpath_null) from [<bf1d0384>]
(cppi41_irq+0x228/0x260 [cppi41])
[ 643.633526] [<bf1d0384>] (cppi41_irq [cppi41]) from [<c01a6888>]
(__handle_irq_event_percpu+0x48/0x3b4)
[ 643.643547] [<c01a6888>] (__handle_irq_event_percpu) from [<c01a6c10>]
(handle_irq_event_percpu+0x1c/0x58)
[ 643.653839] [<c01a6c10>] (handle_irq_event_percpu) from [<c01a6c84>]
(handle_irq_event+0x38/0x5c)
[ 643.663294] [<c01a6c84>] (handle_irq_event) from [<c01aa004>]
(handle_level_irq+0xc0/0x154)
[ 643.672200] [<c01aa004>] (handle_level_irq) from [<c01a5b9c>]
(generic_handle_irq+0x20/0x34)
[ 643.681196] [<c01a5b9c>] (generic_handle_irq) from [<c01a60f0>]
(__handle_domain_irq+0x64/0xe0)
[ 643.690479] [<c01a60f0>] (__handle_domain_irq) from [<c07f92f0>]
(__irq_svc+0x70/0x98)
[ 643.698937] [<c07f92f0>] (__irq_svc) from [<c010836c>]
(arch_cpu_idle+0x20/0x3c)
[ 643.706753] [<c010836c>] (arch_cpu_idle) from [<c018bf7c>]
(do_idle+0x164/0x218)
[ 643.714566] [<c018bf7c>] (do_idle) from [<c018c39c>]
(cpu_startup_entry+0x18/0x1c)
[ 643.722573] [<c018c39c>] (cpu_startup_entry) from [<c0b00c30>]
(start_kernel+0x344/0x3bc)
[ 643.731190] ---[ end trace 12c5b6488c1e8c79 ]---
[ 643.745259] usb 1-1.3: USB disconnect, device number 11
[ 647.703381] usb 1-1: USB disconnect, device number 9
[ 647.708865] usb 1-1.4: USB disconnect, device number 10
[ 654.308094] usb 1-1: new high-speed USB device number 12 using musb-hdrc
[ 654.482563] usb 1-1: New USB device found, idVendor=058f, idProduct=6387
[ 654.489807] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 654.497345] usb 1-1: Product: Mass Storage Device
[ 654.502452] usb 1-1: Manufacturer: Generic
[ 654.506791] usb 1-1: SerialNumber: OU2ACT49
[ 654.519849] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 654.539319] scsi host0: usb-storage 1-1:1.0
[ 655.613494] scsi 0:0:0:0: Direct-Access JetFlash TS128MJF2A 8.07
PQ: 0 ANSI: 2
[ 655.646875] sd 0:0:0:0: [sda] 255998 512-byte logical blocks: (131 MB/125
MiB)
[ 655.668688] sd 0:0:0:0: [sda] Write Protect is off
[ 655.680249] sd 0:0:0:0: [sda] No Caching mode page found
[ 655.685906] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 655.754170] sda:
[ 655.774799] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 656.382509] FAT-fs (sda): Volume was not properly unmounted. Some data may
be corrupt. Please run fsck.
[ 661.348430] usb 1-1: USB disconnect, device number 12
[ 667.908145] usb 1-1: new high-speed USB device number 13 using musb-hdrc
[ 668.082589] usb 1-1: New USB device found, idVendor=058f, idProduct=6387
[ 668.089834] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 668.097373] usb 1-1: Product: Mass Storage Device
[ 668.102528] usb 1-1: Manufacturer: Generic
[ 668.106868] usb 1-1: SerialNumber: OU2ACT49
[ 668.119949] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 668.139462] scsi host0: usb-storage 1-1:1.0
[ 669.211804] scsi 0:0:0:0: Direct-Access JetFlash TS128MJF2A 8.07
PQ: 0 ANSI: 2
[ 669.238458] sd 0:0:0:0: [sda] 255998 512-byte logical blocks: (131 MB/125
MiB)
[ 669.258577] sd 0:0:0:0: [sda] Write Protect is off
[ 669.270862] sd 0:0:0:0: [sda] No Caching mode page found
[ 669.276468] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 669.337468] sda:
[ 669.380588] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 670.003597] FAT-fs (sda): Volume was not properly unmounted. Some data may
be corrupt. Please run fsck.
[ 674.253935] usb 1-1: USB disconnect, device number 13
[ 678.888173] usb 1-1: new high-speed USB device number 14 using musb-hdrc
[ 679.062609] usb 1-1: New USB device found, idVendor=058f, idProduct=6387
[ 679.069866] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 679.077403] usb 1-1: Product: Mass Storage Device
[ 679.082516] usb 1-1: Manufacturer: Generic
[ 679.086855] usb 1-1: SerialNumber: OU2ACT49
[ 679.100234] usb-storage 1-1:1.0: USB Mass Storage device detected
[ 679.119805] scsi host0: usb-storage 1-1:1.0
[ 680.181609] scsi 0:0:0:0: Direct-Access JetFlash TS128MJF2A 8.07
PQ: 0 ANSI: 2
[ 680.216574] sd 0:0:0:0: [sda] 255998 512-byte logical blocks: (131 MB/125
MiB)
[ 680.239868] sd 0:0:0:0: [sda] Write Protect is off
[ 680.250587] sd 0:0:0:0: [sda] No Caching mode page found
[ 680.256243] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 680.313569] sda:
[ 680.334123] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 680.949436] FAT-fs (sda): Volume was not properly unmounted. Some data may
be corrupt. Please run fsck.
[ 683.787309] usb 1-1: USB disconnect, device number 14
--
regards,
-grygorii
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