Dear all.
I encountered this crash by our insert/eject tests several times
with Asianux v2(2.6.9-34.21AXsmp).
I think that this crash is the same pattern reported at
http://sourceforge.net/mailarchive/message.php?msg_id=10654542.
Looking into dump file, the urb->hcpriv was nulled.
The patch avoiding this crash for 2.6.17.4 is as follows.
Signed-off-by:Takamasa Ohtake <[EMAIL PROTECTED]>
Index: linux-2.6.17.4/drivers/usb/host/ohci-q.c
===============================================================================
diff -uprN -X dontdiff linux-2.6.17.4.org/drivers/usb/host/ohci-q.c
linux-2.6.17.4/drivers/usb/host/ohci-q.c
--- linux-2.6.17.4.org/drivers/usb/host/ohci-q.c 2006-07-07
05:02:28.000000000 +0900
+++ linux-2.6.17.4/drivers/usb/host/ohci-q.c 2006-07-12 15:08:26.000000000
+0900
@@ -985,6 +985,8 @@ rescan_this:
/* HC may have partly processed this TD */
td_done (ohci, urb, td);
+ if ( urb_priv == NULL )
+ continue;
urb_priv->td_cnt++;
/* if URB is done, clean up */
^---
Oops: 0000 [#1]
SMP
Modules linked in: aic7xxx ses hasipmi hasftctl ohci_hcd md5 ipv6 i2c_dev
i2c_core ide_dump scsi_dump diskdump zlib_deflate gemini_dump dm_mirror
dm_multipath dm_mod butt
on battery ac sr_mod usb_storage joydev hw_random shpchp e1000 lpfc
scsi_transport_fc ext3 jbd raid1 aic79xx sd_mod had_mod scsi_mod acpiphp
geminifb
CPU: 1
EIP: 0060:[<f8c48af1>] Tainted: PF VLI
EFLAGS: 00010046 (2.6.9-34.21AXsmp)
EIP is at finish_unlinks+0x10b/0x221 [ohci_hcd]
eax: 00000002 ebx: d9f32080 ecx: d9f320b4 edx: 00000000
esi: 00000000 edi: de0b7080 ebp: de2f8180 esp: f7f51dc0
ds: 007b es: 007b ss: 0068
Process kacpid (pid: 15, threadinfo=f7f51000 task=f7f42cb0)
Stack: c2346680 de0b7088 00000000 00000000 d9f32074 de2f8198 00000000 00000000
de0b7080 de2f8180 00000000 000003e8 f8c490e3 00000246 f7e80380 f8c49089
ffffff8d c2346684 00000000 c025a440 de2f8408 f7e80380 00000000 e0022000
Call Trace:
[<f8c490e3>] ohci_endpoint_disable+0x5a/0x146 [ohci_hcd]
[<f8c49089>] ohci_endpoint_disable+0x0/0x146 [ohci_hcd]
[<c025a440>] hcd_endpoint_disable+0x177/0x17f
[<c025b6df>] usb_disable_endpoint+0x1e/0x3d
[<c025b746>] usb_disable_device+0x15/0xc5
[<c0257699>] usb_disconnect+0xc4/0x130
[<c0257687>] usb_disconnect+0xb2/0x130
[<c025d9eb>] usb_hcd_pci_remove+0x70/0x12e
[<c01c963f>] pci_device_remove+0x16/0x28
[<c021fa94>] device_release_driver+0x3c/0x46
[<c021fc77>] bus_remove_device+0x5d/0x97
[<c021ef6f>] device_del+0x6f/0x90
[<c021ef98>] device_unregister+0x8/0x10
[<c01c78f2>] pci_destroy_dev+0x10/0x6d
[<f88315c0>] acpiphp_unconfigure_function+0x11/0x5a [acpiphp]
[<f8830563>] disable_device+0x46/0x8f [acpiphp]
[<f88309ee>] acpiphp_disable_slot+0x30/0x9f [acpiphp]
[<f8830660>] acpiphp_check_bridge+0x2a/0x92 [acpiphp]
[<f8830744>] handle_hotplug_event_bridge+0x7c/0x108 [acpiphp]
[<c01ee7cf>] acpi_ut_release_mutex+0x69/0x6c
[<c01f10bb>] acpi_bus_check_device+0x3d/0x5f
[<c01f10f5>] acpi_bus_check_scope+0x18/0x1e
[<c01f1122>] acpi_bus_notify+0x27/0x36
[<c01de31f>] acpi_ev_notify_dispatch+0x52/0x5b
[<c01da0f8>] acpi_os_execute_deferred+0xc/0x16
[<c0131143>] worker_thread+0x168/0x1d5
[<c01da0ec>] acpi_os_execute_deferred+0x0/0x16
[<c011ecf0>] default_wake_function+0x0/0xc
[<c011ecf0>] default_wake_function+0x0/0xc
[<c0130fdb>] worker_thread+0x0/0x1d5
[<c01346ed>] kthread+0x73/0x9b
[<c013467a>] kthread+0x0/0x9b
[<c01041f5>] kernel_thread_helper+0x5/0xb
Code: 04 24 83 78 2c 8d 75 09 83 c3 08 89 5c 24 04 eb 47 8b 54 24 04 89 d9 8b
02 83 e0 1f 0b 43 08 89 02 8b 14 24 89 e8 e8 ce fc ff ff <0f> b7 46 06 40 66 39
46 04 66 89
46 06 75 1e c7 44 24 0c 01 00
crash> struct urb c2346680
struct urb {
kref = {
refcount = {
counter = 1
}
},
lock = {
lock = 1,
magic = 3735899821
},
hcpriv = 0x0,
urb_list = {
next = 0xc2346690,
prev = 0xc2346690
},
bandwidth = 0,
use_count = {
counter = 0
},
reject = 0 '\0',
dev = 0xe0022000,
pipe = 2147484672,
status = -108,
transfer_flags = 24,
transfer_buffer = 0x0,
transfer_dma = 507093760,
transfer_buffer_length = 0,
actual_length = 0,
setup_packet = 0xe1c88060 "!?",
setup_dma = 566788192,
start_frame = 0,
number_of_packets = 0,
interval = 0,
error_count = 0,
context = 0xf6e56e90,
complete = 0xf8c4ea04,
iso_frame_desc = 0xc23466ec
}
--------------------------------------------------
Takamasa Ohtake | Servers Software Division
| NEC System Technologies, Ltd.
| [EMAIL PROTECTED]
--------------------------------------------------
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