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Subject[2.6.0-test2-bk5] OHCI USB printing call trace...
When I started a test print job, on my SiS OHCI USB controller system, I ran
into problems. Let me know if any further information is needed - this
kernel includes Greg's recent updates I believe (from Neukum, Bellucci, Brownell,
Stern).

Kernel is 2.6.0-test2-bk5.

--- [Epson C62 connected]

hub 2-0:0: debounce: port 1: delay 100ms stable 4 status 0x101
hub 2-0:0: new USB device on port 1, assigned address 3
drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 3 if 0 alt
0 proto 2 vid 0x04B8 pid 0x0005

--- [test print job started]

drivers/usb/class/usblp.c: usblp0: nonzero read/write bulk status received:
-2
drivers/usb/class/usblp.c: usblp0: error -110 reading printer status
[last message repeated 216 times]

--- [unplug printer]

usb 2-1: USB disconnect, address 3
ohci-hcd 0000:00:02.3: ed dec62000 (#0) state 2(has tds)
drivers/usb/class/usblp.c: usblp0: error -108 reading printer status
drivers/usb/class/usblp.c: usblp0: removed
Unable to handle kernel paging request at virtual address dee7b0e4
printing eip:
c02b6a6a
*pde = 0007a067
*pte = 1ee7b000
Oops: 0000 [#1]
CPU: 0
EIP: 0060:[<c02b6a6a>] Not tainted
EFLAGS: 00210282
EIP is at usb_buffer_free+0xd/0x46
eax: dee7b004 ebx: ded75004 ecx: c04adc54 edx: c03fa3b8
esi: ded75008 edi: d8c5b098 ebp: dcbedf1c esp: dcbedf0c
ds: 007b es: 007b ss: 0068
Process usb (pid: 2128, threadinfo=dcbec000 task=c6f89000)
Stack: dcbedf0c ded75004 ded75008 d8c5b098 dcbedf38 c02cb611 dee7b004
00002000
ceab6000 0eab6000 ded75004 dcbedf50 c02cb713 ded75004 00000077
de347004
dffe61dc dcbedf70 c016aa7b d8c5b098 de347004 d1f17004 de347004
c745f004
Call Trace:
[<c02cb611>] usblp_cleanup+0x43/0xa2
[<c02cb713>] usblp_release+0x6b/0x6d
[<c016aa7b>] __fput+0xb5/0xc4
[<c0168c09>] filp_close+0x4b/0x74
[<c0168d35>] sys_close+0x103/0x226
[<c0169b05>] sys_read+0x3f/0x5d
[<c010a07d>] sysenter_past_esp+0x52/0x71

Code: 8b 90 e0 00 00 00 85 d2 74 0e 8b 4a 20 85 c9 74 07 8b 41 18
<6>hub 2-0:0: debounce: port 1: delay 100ms stable 4 status 0x101
hub 2-0:0: new USB device on port 1, assigned address 4
drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 4 if 0 alt
0 proto 2 vid 0x04B8 pid 0x0005
usb 2-1: USB disconnect, address 4
drivers/usb/class/usblp.c: usblp0: removed

--
Daniel J Blueman

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