Arch Linux

solstice

Member

Registered: 2006-10-27

Posts: 239

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ohci_hcd kick in after device managed with ehci_hcd has been unmounted

so I have posted a thread https://bbs.archlinux.org/viewtopic.php?id=130828
And I think I have understood part of the problem

When I insert an usb key for example, then unmount it with nautilus, it is automatically remounted a second time. If i unmount it again, it's ok
From the log in /var/log/messages.log, I understand that the first time the ehci_hcd module managed the device. Once unmounted, it seems ohci_hcd manage the device causing udev/dbus to launch a nautilus window

So it's not nautilus' fault.

It's between the kernel and udev. But I know nothing about that and how it works.

So is it a bug ? of what ? Is there some udev rules I can use to avoid that ?

the log

Nov 26 21:37:58 soho kernel: [  274.976685] usb 1-10: new high speed USB device number 4 using ehci_hcd
Nov 26 21:37:58 soho kernel: [  275.180160] usbcore: registered new interface driver uas
Nov 26 21:37:58 soho kernel: [  275.195133] Initializing USB Mass Storage driver...
Nov 26 21:37:58 soho kernel: [  275.195441] scsi4 : usb-storage 1-10:1.0
Nov 26 21:37:58 soho kernel: [  275.195695] usbcore: registered new interface driver usb-storage
Nov 26 21:37:58 soho kernel: [  275.195701] USB Mass Storage support registered.
Nov 26 21:37:59 soho kernel: [  276.194678] scsi 4:0:0:0: Direct-Access     EMTEC    U3 Smart Drive   PMAP PQ: 0 ANSI: 0 CCS
Nov 26 21:38:00 soho kernel: [  276.894122] scsi: killing requests for dead queue
Nov 26 21:38:00 soho kernel: [  276.894442] scsi: killing requests for dead queue
Nov 26 21:38:00 soho kernel: [  276.895035] sd 4:0:0:0: [sdb] 4029952 512-byte logical blocks: (2.06 GB/1.92 GiB)
Nov 26 21:38:00 soho kernel: [  276.895083] scsi: killing requests for dead queue
Nov 26 21:38:00 soho kernel: [  276.895768] sd 4:0:0:0: [sdb] Write Protect is off
Nov 26 21:38:00 soho kernel: [  276.895817] scsi: killing requests for dead queue
Nov 26 21:38:00 soho kernel: [  276.896769] scsi: killing requests for dead queue
Nov 26 21:38:00 soho kernel: [  276.896988] scsi: killing requests for dead queue
Nov 26 21:38:00 soho kernel: [  276.897143] scsi: killing requests for dead queue
Nov 26 21:38:00 soho kernel: [  276.897294] scsi: killing requests for dead queue
Nov 26 21:38:00 soho kernel: [  276.902441]  sdb: sdb1
Nov 26 21:38:00 soho kernel: [  276.907165] sd 4:0:0:0: [sdb] Attached SCSI removable disk
Nov 26 21:38:01 soho dbus[923]: [system] Activating service name='org.freedesktop.SystemToolsBackends' (using servicehelper)
Nov 26 21:38:02 soho dbus[923]: [system] Successfully activated service 'org.freedesktop.SystemToolsBackends'
Nov 26 21:38:02 soho dbus[923]: [system] Activating service name='org.freedesktop.SystemToolsBackends.SMBConfig' (using servicehelper)
Nov 26 21:38:02 soho dbus[923]: [system] Activating service name='org.freedesktop.SystemToolsBackends.NFSConfig' (using servicehelper)
Nov 26 21:38:04 soho dbus[923]: [system] Successfully activated service 'org.freedesktop.SystemToolsBackends.SMBConfig'
Nov 26 21:38:04 soho dbus[923]: [system] Successfully activated service 'org.freedesktop.SystemToolsBackends.NFSConfig'
Nov 26 21:38:04 soho dbus[923]: [system] Activating service name='org.freedesktop.SystemToolsBackends.Platform' (using servicehelper)
Nov 26 21:38:04 soho dbus[923]: [system] Successfully activated service 'org.freedesktop.SystemToolsBackends.Platform'
Nov 26 21:38:12 soho kernel: [  289.084146] scsi: killing requests for dead queue
Nov 26 21:38:12 soho kernel: [  289.085198] WARNING! power/level is deprecated; use power/control instead
Nov 26 21:38:12 soho kernel: [  289.156702] usb 1-10: USB disconnect, device number 4
Nov 26 21:38:13 soho kernel: [  289.566810] usb 2-10: new full speed USB device number 4 using ohci_hcd
Nov 26 21:38:13 soho kernel: [  289.747848] usb 2-10: not running at top speed; connect to a high speed hub
Nov 26 21:38:13 soho kernel: [  289.768998] scsi5 : usb-storage 2-10:1.0
Nov 26 21:38:14 soho kernel: [  290.778921] scsi 5:0:0:0: Direct-Access     EMTEC    U3 Smart Drive   PMAP PQ: 0 ANSI: 0 CCS
Nov 26 21:38:14 soho kernel: [  290.783953] scsi: killing requests for dead queue
Nov 26 21:38:14 soho kernel: [  290.790925] sd 5:0:0:0: [sdb] 4029952 512-byte logical blocks: (2.06 GB/1.92 GiB)
Nov 26 21:38:14 soho kernel: [  290.790989] scsi: killing requests for dead queue
Nov 26 21:38:14 soho kernel: [  290.797928] sd 5:0:0:0: [sdb] Write Protect is off
Nov 26 21:38:14 soho kernel: [  290.798007] scsi: killing requests for dead queue
Nov 26 21:38:14 soho kernel: [  290.805898] scsi: killing requests for dead queue
Nov 26 21:38:14 soho kernel: [  290.806217] scsi: killing requests for dead queue
Nov 26 21:38:14 soho kernel: [  290.815969] scsi: killing requests for dead queue
Nov 26 21:38:14 soho kernel: [  290.820058] scsi: killing requests for dead queue
Nov 26 21:38:14 soho kernel: [  290.826982] scsi: killing requests for dead queue
Nov 26 21:38:14 soho kernel: [  290.850924]  sdb: sdb1
Nov 26 21:38:14 soho kernel: [  290.893958] sd 5:0:0:0: [sdb] Attached SCSI removable disk
Nov 26 21:38:21 soho kernel: [  297.553974] scsi: killing requests for dead queue
Nov 26 21:38:21 soho kernel: [  297.629996] usb 2-10: USB disconnect, device number 4

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