Comment # 3 on bug 934397 from Dario Savella

I tried with kernel 4.0.5-1.gf4cd21b-desktop and the problem is still there.
I do have a crash dump if it helps (I can only provide the files, not any
skills to look at them).

The dmesg from the crash says:

[   73.957016] ata3: SATA link down (SStatus 0 SControl 300)
[   73.961017] ata4: SATA link down (SStatus 0 SControl 300)
[   73.961030] ata6: SATA link down (SStatus 0 SControl 300)
[   74.114023] usb 5-1: reset low-speed USB device number 2 using uhci_hcd
[   74.880484] ata7.00: configured for UDMA/33
[   75.748492] e1000e: enp0s25 NIC Link is Up 1000 Mbps Full Duplex, Flow
Control: Rx/Tx
[   78.244018] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[   78.245701] ata1.00: configured for UDMA/133
[   79.002184] ata5: link is slow to respond, please be patient (ready=0)
[   79.012012] ata2: link is slow to respond, please be patient (ready=0)
[   83.031024] ata5: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[   83.184936] ata5.00: configured for UDMA/133
[   83.704007] ata2: COMRESET failed (errno=-16)
[   85.539018] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[   85.663005] sr 6:0:0:0: **** DPM device timeout ****
[   85.663014]  ffff880124913c68 ffff880126430450 ffff88012490a5d0
ffffffff8168289e
[   85.663015] sd 0:0:0:0: **** DPM device timeout ****
[   85.663018]  ffff880124913fd8
[   85.663019]  ffff8801260fbc68
[   85.663020]  0000000000000010
[   85.663021]  ffff88012603e250
[   85.663022]  ffffffff814a6030
[   85.663023]  ffff8800cabea190
[   85.663024]  0000000000000000
[   85.663024]  000000000000f630
[   85.663025] 
[   85.663025] 
[   85.663027]  ffffffff81a8e160
[   85.663028]  ffff8801260fbfd8
[   85.663029]  ffff880124913c88
[   85.663030]  0000000000000010
[   85.663031]  ffffffff8167f1c7
[   85.663031]  ffffffff814a6030
[   85.663032]  0000000000000286
[   85.663033]  0000000000000000
[   85.663033] 
[   85.663034] 
[   85.663035] Call Trace:
[   85.663038]  ffffffff81a8e160 ffff8801260fbc88 ffffffff8167f1c7
0000000000000286
[   85.663039] Call Trace:
[   85.663051]  [<ffffffff8167f1c7>] schedule+0x37/0x90
[   85.663057]  [<ffffffff8167f1c7>] schedule+0x37/0x90
[   85.663061]  [<ffffffff81083f15>] async_synchronize_cookie_domain+0x55/0x130
[   85.663066]  [<ffffffff81083f15>] async_synchronize_cookie_domain+0x55/0x130
[   85.663070]  [<ffffffff814a5fc4>] scsi_bus_resume_common+0xa4/0xd0
[   85.663074]  [<ffffffff814a5fc4>] scsi_bus_resume_common+0xa4/0xd0
[   85.663078]  [<ffffffff8147a89a>] dpm_run_callback+0x4a/0x150
[   85.663081]  [<ffffffff8147a89a>] dpm_run_callback+0x4a/0x150
[   85.663084]  [<ffffffff8147ae7b>] device_resume+0x10b/0x240
[   85.663086]  [<ffffffff8147ae7b>] device_resume+0x10b/0x240
[   85.663088]  [<ffffffff8147afc9>] async_resume+0x19/0x40
[   85.663090]  [<ffffffff8147afc9>] async_resume+0x19/0x40
[   85.663092]  [<ffffffff81083d13>] async_run_entry_fn+0x43/0x150
[   85.663094]  [<ffffffff81083d13>] async_run_entry_fn+0x43/0x150
[   85.663098]  [<ffffffff8107bcf2>] process_one_work+0x142/0x420
[   85.663102]  [<ffffffff8107bcf2>] process_one_work+0x142/0x420
[   85.663104]  [<ffffffff8107c0e4>] worker_thread+0x114/0x460
[   85.663106]  [<ffffffff8107c0e4>] worker_thread+0x114/0x460
[   85.663108]  [<ffffffff81081261>] kthread+0xc1/0xe0
[   85.663111]  [<ffffffff81081261>] kthread+0xc1/0xe0
[   85.663114]  [<ffffffff816830d8>] ret_from_fork+0x58/0x90
[   85.663117]  [<ffffffff816830d8>] ret_from_fork+0x58/0x90
[   85.663118] Kernel panic - not syncing: sr 6:0:0:0: unrecoverable failure