When printing a test page on an Epson C62 through an unpowered USB 1.1 hub,
the printer printed part of the page, then stopped.
The 'error -110' messages were being sent to the syslogs, and after pulling
the connector to the USB hub, the system locked up.
Details below:
--- [printer connected via hub]
Aug 6 23:10:28 stratum kernel: hub 2-2:0: new USB device on port 4,
assigned address 31
Aug 6 23:10:28 stratum kernel: drivers/usb/class/usblp.c: usblp0: USB
Bidirectional printer dev 31 if 0 alt 0 proto 2 vid 0x04B8 pid 0x0005
-- [printing stopped]
Aug 6 23:15:36 stratum kernel: drivers/usb/class/usblp.c: usblp0: error
-110 reading printer status
Aug 6 23:15:36 stratum last message repeated 146 times
--- [pulled USB hub connection, ie disconnect 3 devices + hub]
Aug 6 23:15:36 stratum kernel: usb 2-2: USB disconnect, address 25
Aug 6 23:15:36 stratum kernel: usb 2-2.1: USB disconnect, address 26
Aug 6 23:15:36 stratum kernel: drivers/usb/class/usblp.c: usblp0: error
-110 reading printer status
Aug 6 23:15:36 stratum kernel: drivers/usb/class/usblp.c: usblp0: error
-110 reading printer status
Aug 6 23:15:36 stratum kernel: usb 2-2.2: USB disconnect, address 27
Aug 6 23:15:36 stratum kernel: drivers/usb/class/usblp.c: usblp0: error
-110 reading printer status
Aug 6 23:15:36 stratum kernel: usb 2-2.3: USB disconnect, address 28
Aug 6 23:15:36 stratum kernel: usb 2-2.4: USB disconnect, address 31
Aug 6 23:15:36 stratum kernel: ohci-hcd 0000:00:02.3: ed deee1340 (#0)
state 2(has tds)
Aug 6 23:15:36 stratum kernel: drivers/usb/class/usblp.c: usblp0: error
-108 reading printer status
Aug 6 23:15:36 stratum kernel: usb 2-2.5: USB disconnect, address 29
Aug 6 23:15:39 stratum kernel: drivers/usb/class/usblp.c: usblp0: removed
Aug 6 23:15:39 stratum kernel: Unable to handle kernel paging request at
virtual address df2670e4
Aug 6 23:15:39 stratum kernel: printing eip:
Aug 6 23:15:39 stratum kernel: c02b6a6a
Aug 6 23:15:39 stratum kernel: *pde = 0007b067
Aug 6 23:15:39 stratum kernel: *pte = 1f267000
Aug 6 23:15:39 stratum kernel: Oops: 0000 [#1]
Aug 6 23:15:39 stratum kernel: CPU: 0
Aug 6 23:15:39 stratum kernel: EIP: 0060:[<c02b6a6a>] Not tainted
Aug 6 23:15:39 stratum kernel: EFLAGS: 00010282
Aug 6 23:15:39 stratum kernel: EIP is at usb_buffer_free+0xd/0x46
--
Daniel J Blueman
COMPUTERBILD 15/03: Premium-e-mail-Dienste im Test
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Daniel Blueman wrote:
> When printing a test page on an Epson C62 through an unpowered USB 1.1 hub,
> the printer printed part of the page, then stopped.
>
> The 'error -110' messages were being sent to the syslogs, and after pulling
> the connector to the USB hub, the system locked up.
So it seems like there are two errors:
- timeouts during printing, reported recently on UHCI too;
- the usb_buffer_free() oops from printer cleanup, likewise.
Seems more related to the printer driver than to OHCI ...
- Dave