Bug 727572

Summary:	System hangs few seconds
Product:	[Fedora] Fedora	Reporter:	Arif Tri Waluyo <arifiauo>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED WORKSFORME	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	16	CC:	aquini, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, robinlee.sysu
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-02-28 20:09:14 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Arif Tri Waluyo 2011-08-02 13:46:52 UTC

Description of problem:
when I use the kernel-2.6.38.7-30.fc15.i686, I could use my usb modem with the command 'modprobe usbserial'. but after I update the kernel-2.6.40-4.fc15.i686. I no longer can use the modemku.

Version-Release number of selected component (if applicable):
Name        : kernel
Arch        : i686
Version     : 2.6.40
Release     : 4.fc15
Size        : 83 M
Repo        : installed
From repo   : updates
Summary     : The Linux kernel
URL         : http://www.kernel.org/
License     : GPLv2
Description : The kernel package contains the Linux kernel (vmlinuz), the core
            : of any Linux operating system.  The kernel handles the basic
            : functions of the operating system: memory allocation, process
            : allocation, device input and output, etc.

Steps to Reproduce:
1.run terminal
2.as root, run command 'modprobe usbserial vendor=0x19d2 product=0xffdd'
3.the modem was not detected.

Comment 1 Dave Jones 2011-08-02 17:35:03 UTC

it was changed to be built-in, so that it can be used to debug early boot.

You should be able to add to the boot command line

usbserial.vendor=0x19d2 usbserial.product=0xffdd and it will do the same thing.

The correct fix would be to have the ID added to usbserial itself.

Comment 2 Arif Tri Waluyo 2011-08-02 21:36:34 UTC

(In reply to comment #1)
> it was changed to be built-in, so that it can be used to debug early boot.
> 
> You should be able to add to the boot command line
> 
> usbserial.vendor=0x19d2 usbserial.product=0xffdd and it will do the same thing.
> 
> The correct fix would be to have the ID added to usbserial itself.

if still can I do if my usb modem will be read as a cdrom when first plugged in the computer?
Actually before the command 'modprobe usbserial', I run the command 'eject' first.

Comment 3 Arif Tri Waluyo 2011-08-30 03:13:04 UTC

(In reply to comment #1)
> it was changed to be built-in, so that it can be used to debug early boot.
> 
> You should be able to add to the boot command line
> 
> usbserial.vendor=0x19d2 usbserial.product=0xffdd and it will do the same thing.
> 
> The correct fix would be to have the ID added to usbserial itself.

With these steps I was able to use my modem, but there is another effect that is, the desktop hangs..

Comment 4 Robin Lee 2011-08-30 09:16:06 UTC

(In reply to comment #3)
> (In reply to comment #1)
> > it was changed to be built-in, so that it can be used to debug early boot.
> > 
> > You should be able to add to the boot command line
> > 
> > usbserial.vendor=0x19d2 usbserial.product=0xffdd and it will do the same thing.
> > 
> > The correct fix would be to have the ID added to usbserial itself.
> 
> With these steps I was able to use my modem, but there is another effect that
> is, the desktop hangs..

I met the same issue. When I plug-in my USB modem, the whole system hangs for some seconds.

Comment 5 Josh Boyer 2011-10-11 13:33:24 UTC

The built-in change was dropped in newer F15 kernels.  Are these issues still seen on 2.6.40.6?

Comment 6 Arif Tri Waluyo 2011-10-11 19:31:25 UTC

(In reply to comment #5)
> The built-in change was dropped in newer F15 kernels.  Are these issues still
> seen on 2.6.40.6?

The modem still not detected. But actually, I got used to the way suggested by Dave Jones.

Comment 7 Robin Lee 2011-10-12 01:37:35 UTC

I think modularization scheme of the kernel should be kept consistent in a released Fedora version.
And will usbserial be built in or modularized in Fedora 16?