#12532 NORM Not Tri: 8 GiB USB disk from EMTEC can crash 1.75 13.1.0-27 on resume.

[Zarro Boogs per Child]

#12532: 8 GiB USB disk from EMTEC can crash 1.75 13.1.0-27 on resume.
--------------------------+-------------------------------------------------
 Reporter:  rsmith        |                 Owner:                                   
     Type:  defect        |                Status:  new                              
 Priority:  normal        |             Milestone:  Not Triaged                      
Component:  not assigned  |               Version:  Development build as of this date
 Keywords:                |           Next_action:  never set                        
 Verified:  0             |   Deployment_affected:                                   
Blockedby:                |              Blocking:                                   
--------------------------+-------------------------------------------------
 Leaving this 8 GiB usb disk in a 1.75 that is suspending can cause the
 system to wedge.

 The following is the console log.  There are 2 suspend/resumes here.  1st
 one is successful and then the next one hangs while its sorting out what
 sort of device the USB disk is.

 I have 2 other 8GiB disks that don't seem to crash it so it appears
 specific to some badness in this stick.

 {{{
 [  261.865892] PM: Syncing filesystems ... done.
 [  262.002654] Freezing user space processes ... (elapsed 0.02 seconds)
 done.
 [  262.030817] Freezing remaining freezable tasks ... (elapsed 0.01
 seconds) done.
 [  262.159867] dcon_source_switch to DCON
 [  262.185212] olpc-dcon: The DCON has control
 [  262.190953] libertas_sdio mmc1:0001:1: mmc1:0001:1: suspend: PM flags =
 0x3
 [  262.198774] setting up for WOL wakeups: 40a1[galcore]: gpu_suspend,
 1022
 [  262.205502]
 [  262.248206] PM: suspend of devices complete after 196.672 msecs
 [  262.254396] PM: late suspend of devices complete after 0.314 msecs
 [  262.262102] PM: early resume of devices complete after 0.558 msecs
 [  262.268308] mmp2_pm_finish
 [  262.271011] mmp2_pm_finish: Enable audio island
 [  262.275541] mmp2_pm_finish: Done
 [  262.321301] [galcore]: gpu_resume, 1042
 [  262.325108]
 [  262.326767] libertas_sdio mmc1:0001:1: mmc1:0001:1: resume: we're back
 [  262.539054] usb 1-1: reset high speed USB device number 2 using pxau2o-
 ehci
 [  262.929895] PM: resume of devices complete after 651.148 msecs
 [  262.935836] Restarting tasks ... dcon_source_switch to CPU
 [  262.943758] usb 1-1.2: USB disconnect, device number 3
 [  262.961452] done.
 [  262.978690] olpc-dcon: The CPU has control
 [  263.189394] usb 1-1.2: new high speed USB device number 4 using pxau2o-
 ehci
 [  263.329086] usb 1-1.2: New USB device found, idVendor=13fe,
 idProduct=4100
 [  263.335924] usb 1-1.2: New USB device strings: Mfr=1, Product=2,
 SerialNumber=3
 [  263.391940] usb 1-1.2: Product: USB DISK 2.0
 [  263.396194] usb 1-1.2: Manufacturer:
 [  263.415233] usb 1-1.2: SerialNumber: 070129EE1D3A4D21
 [  263.438370] scsi1 : usb-storage 1-1.2:1.0
 [  264.470836] scsi 1:0:0:0: Direct-Access              USB DISK 2.0
 PMAP PQ: 0 ANSI: 4
 [  264.487338] sd 1:0:0:0: Attached scsi generic sg0 type 0
 [  265.610396] sd 1:0:0:0: [sda] 15638528 512-byte logical blocks: (8.00
 GB/7.45 GiB)
 [  265.619518] sd 1:0:0:0: [sda] Write Protect is off
 [  265.625858] sd 1:0:0:0: [sda] No Caching mode page present
 [  265.631552] sd 1:0:0:0: [sda] Assuming drive cache: write through
 [  265.645858] sd 1:0:0:0: [sda] No Caching mode page present
 [  265.651611] sd 1:0:0:0: [sda] Assuming drive cache: write through
 [  265.679987]  sda: sda1
 [  265.702132] sd 1:0:0:0: [sda] No Caching mode page present
 [  265.707590] sd 1:0:0:0: [sda] Assuming drive cache: write through
 [  265.713977] sd 1:0:0:0: [sda] Attached SCSI removable disk
 [  301.032535] PM: Syncing filesystems ... done.
 [  301.040203] Freezing user space processes ... (elapsed 0.01 seconds)
 done.
 [  301.061757] Freezing remaining freezable tasks ... (elapsed 0.01
 seconds) done.
 [  301.190708] dcon_source_switch to DCON
 [  301.217330] olpc-dcon: The DCON has control
 [  301.223072] libertas_sdio mmc1:0001:1: mmc1:0001:1: suspend: PM flags =
 0x3
 [  301.231055] setting up for WOL wakeups: 40a1[galcore]: gpu_suspend,
 1022
 [  301.237784]
 [  301.279050] PM: suspend of devices complete after 196.657 msecs
 [  301.285235] PM: late suspend of devices complete after 0.308 msecs
 [  301.292937] PM: early resume of devices complete after 0.560 msecs
 [  301.299146] mmp2_pm_finish
 [  301.301847] mmp2_pm_finish: Enable audio island
 [  301.306379] mmp2_pm_finish: Done
 [  301.352159] [galcore]: gpu_resume, 1042
 [  301.355963]
 [  301.357684] libertas_sdio mmc1:0001:1: mmc1:0001:1: resume: we're back
 [  301.364316] libertas_sdio mmc1:0001:1: eth0: EVENT: unknown event id 1
 [  301.619896] usb 1-1: reset high speed USB device number 2 using pxau2o-
 ehci
 [  302.010721] PM: resume of devices complete after 701.134 msecs
 [  302.016669] Restarting tasks ... dcon_source_switch to CPU
 [  302.024701] usb 1-1.2: USB disconnect, device number 4
 [  302.042219] done.
 [  302.058258] olpc-dcon: The CPU has control
 [  302.280385] usb 1-1.2: new high speed USB device number 5 using pxau2o-
 ehci
 [  302.406613] usb 1-1.2: New USB device found, idVendor=13fe,
 idProduct=4100
 [  302.442361] usb 1-1.2: New USB device strings: Mfr=1, Product=2,
 SerialNumber=3
 [  302.449647] usb 1-1.2: Product: USB DISK 2.0
 [  302.472596] usb 1-1.2: Manufacturer:
 [  302.476932] usb 1-1.2: SerialNumber: 070129EE1D3A4D21
 [  302.496540] scsi2 : usb-storage 1-1.2:1.0
 [  303.521675] scsi 2:0:0:0: Direct-Access              USB DISK 2.0
 PMAP PQ: 0 ANSI: 4
 [  303.538194] sd 2:0:0:0: Attached scsi generic sg0 type 0
 [  303.784187] PM: Syncing filesystems ... done.
 [  303.791830] Freezing user space processes ... (elapsed 0.01 seconds)
 done.
 [  303.812498] Freezing remaining freezable tasks ... (elapsed 0.01
 seconds) done.
 [  303.941523] dcon_source_switch to DCON
 [  303.971336] olpc-dcon: The DCON has control
 [  303.976950] libertas_sdio mmc1:0001:1: mmc1:0001:1: suspend: PM flags =
 0x3
 [  303.985144] setting up for WOL wakeups: 40a1[galcore]: gpu_suspend,
 1022
 [  303.991899]
 [  304.661339] sd 2:0:0:0: [sda] 15638528 512-byte logical blocks: (8.00
 GB/7.45 GiB)
 [  304.670455] sd 2:0:0:0: [sda] Write Protect is off
 [  304.676826] sd 2:0:0:0: [sda] No Caching mode page present
 [  304.682291] sd 2:0:0:0: [sda] Assuming drive cache: write through
 [  304.688676] block sda: parent 2:0:0:0 should not be sleeping
 [  304.700075] sd 2:0:0:0: [sda] No Caching mode page present
 [  304.705524] sd 2:0:0:0: [sda] Assuming drive cache: write through
 }}}

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Ticket URL: <http://dev.laptop.org/ticket/12532>
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