From: Greg KH <greg@kroah.com>
To: felipe_alfaro@linuxmail.org
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [Bug 1227] New: Oops with SynCE and Compaq iPAQ 3600
Date: Tue, 16 Sep 2003 10:41:19 -0700 [thread overview]
Message-ID: <20030916174119.GB3893@kroah.com> (raw)
In-Reply-To: <1504610000.1063637215@[10.10.2.4]>
On Mon, Sep 15, 2003 at 07:46:55AM -0700, Martin J. Bligh wrote:
> http://bugme.osdl.org/show_bug.cgi?id=1227
>
> Unable to handle kernel NULL pointer dereference at virtual address 0000010c
> printing eip:
> e08794d4
> *pde = 00000000
> Oops: 0000 [#1]
> PREEMPT
> CPU: 0
> EIP: 0060:[<e08794d4>] Not tainted VLI
> EFLAGS: 00010297
> EIP is at ipaq_read_bulk_callback+0xca/0x282 [ipaq]
> eax: 00000006 ebx: 00000000 ecx: de7cd600 edx: 00000006
> esi: de9fc200 edi: df4f9600 ebp: 00000000 esp: c038dee0
> ds: 007b es: 007b ss:0068
> Process swapper (pid: 0, threadinfo=c038c000 task=c03169c0)
> Stack: 00000046 00000086 de9fc200 de9fc200 00000006 dd273000 de7cd600 de9fc200
> c038dfa4 de9fc200 df765c00 e08421ea de9fc200 c038dfa4 c038c000 00000286
> e082ed9a df765c00 de9fc200 c038dfa4 df765df8 c038dfa4 df765c00 00000001
> Call Trace:
> [<e08421ea>] usb_hcd_giveback_urb+0x25/0x39 [usbcore]
> [<e082ed9a>] uhci_finish_completion+0x6a/0xac [uhci_hcd]
> [<e0842234>] usb_hcd_irq+0x36/0x5f [usbcore]
> [<c010c633>] handle_IRQ_event+0x3a/0x64
> [<c010c999>] do_IRQ+0x94/0x135
> [<c0107000>] _stext+0x0/0x5d
> [<c02d404c>] common_interrupt+0x18/0x20
> [<c0107000>] _stext+0x0/0x5d
> [<c012007b>] __wake_up_common+0x31/0x50
> [<c0109041>] default_idle+0x23/0x26
> [<c010909f>] cpu_idle+0x2c/0x35
> [<c038e6cc>] start_kernel+0x17d/0x1ab
> [<c038e426>] unknown_bootoption+0x0/0xfd
Does the following patch solve this oops?
thanks,
greg k-h
--- a/drivers/usb/serial/ipaq.c Wed Sep 3 08:47:21 2003
+++ b/drivers/usb/serial/ipaq.c Tue Sep 16 10:34:30 2003
@@ -341,7 +341,7 @@
usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length, data);
tty = port->tty;
- if (urb->actual_length) {
+ if (tty && urb->actual_length) {
for (i = 0; i < urb->actual_length ; ++i) {
/* if we insert more than TTY_FLIPBUF_SIZE characters, we drop them. */
if(tty->flip.count >= TTY_FLIPBUF_SIZE) {
prev parent reply other threads:[~2003-09-16 17:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-15 14:46 [Bug 1227] New: Oops with SynCE and Compaq iPAQ 3600 Martin J. Bligh
2003-09-16 17:41 ` Greg KH [this message]
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