3.4.0-rc7 regression: bluetooth vs. s2ram

May 15th, 2012 - 09:20 am ET by Pavel Machek | Report spam
Hi!

In 3.4-rc7, if I suspend while bnep0 over btusb is connected, then
resume, system dies with a backtrace. (Unfortunately, it is not
exactly easy to capture).

If I suspend without bnep0 active, resume works.

(This has worked before, but "before" may mean 3.2 in this case).

Can someone test/reproduce this? Ideas?

Pavel

PS: Under normal suspend/resume, I see these warnings in the
log. Maybe relevant?

ehci_hcd 0000:00:1d.7: GetStatus port:7 status 003002 0 ACK POWER OWNER sig=se0 CSC
usb 5-2: finish reset-resume
uhci_hcd 0000:00:1d.3: port 1 portsc 0093,00
usb 5-1: finish reset-resume
usb 5-2: reset full-speed USB device number 3 using uhci_hcd
usb 5-2: ep0 maxpacket = 8
usb 5-1: reset full-speed USB device number 2 using uhci_hcd
btusb 5-1:1.0: no reset_resume for driver btusb?
btusb 5-1:1.1: no reset_resume for driver btusb?
btusb 5-1:1.0: forced unbind
usb usb2: suspend_rh (auto-stop)
usb usb3: suspend_rh (auto-stop)
usb usb4: suspend_rh (auto-stop)
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)

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#1 Oliver Neukum
May 15th, 2012 - 09:40 am ET | Report spam
Am Dienstag, 15. Mai 2012, 15:14:57 schrieb Pavel Machek:
If I suspend without bnep0 active, resume works.

(This has worked before, but "before" may mean 3.2 in this case).

Can someone test/reproduce this? Ideas?

Pavel

PS: Under normal suspend/resume, I see these warnings in the
log. Maybe relevant?



Most likely. Something has introduced a bug that crashes if the controller
over which a bnep is run is getting away. Does it survive a surprise removal
of the BT device while bnep is up?

Regards
Oliver
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