Bug 262611 – Usb Serial not working using 2.6.28-gentoo-r3

• Status: RESOLVED INVALID
• Product: Gentoo Linux

[Description Stefan de Konink 2009-03-15 22:50:23 UTC]

I have recently upgraded my 2.6.28 gentoo-sources from another version and I noticed today that no 2303 dongle is working anymore (I have 6 so probably no hardware failure.) Thus I tried the dongles using my iBook that is running a 2.6.29-rc. Surprisingly connecting to that machine doesn't give the error.

The URL describes the error; but reading that, the fix Alan suggests is in the current 2.6.28 gentoo sources and obviously does not fix it. Now I can upgrade to .29 on my amd64 system, to verify, but I guess there is something wrongly applied to the gentoo tree since (iirc) -r1 did not fail.


Reproducible: Always

Steps to Reproduce:
1. connect pl2303
2. cat /dev/ttyUSB0


Actual Results:  
i/o error.

Expected Results:  
Just something that waits for input from the device.

paludis 0.34.5
Paludis build information:
    Compiler:
        CXX:                   x86_64-pc-linux-gnu-g++ 4.3.3
        CXXFLAGS:               -march=athlon64 -O2 -pipe -msse3
        LDFLAGS:               
        DATE:                  2009-02-27T21:55:43+0100

    Libraries:
        C++ Library:           GNU libstdc++ 20090124

    Reduced Privs:
        reduced_uid:           105
        reduced_uid->name:     paludisbuild
        reduced_uid->dir:      /dev/null
        reduced_gid:           1007
        reduced_gid->name:     paludisbuild

    Paths:
        DATADIR:               /usr/share
        LIBDIR:                /usr/lib64
        LIBEXECDIR:            /usr/libexec
        SYSCONFDIR:            /etc
        PYTHONINSTALLDIR:      
        RUBYINSTALLDIR:        

Environment:
    Format:                    paludis
    Config dir:                /etc/paludis
    World file:                /var/db/pkg/world

[Comment 1 Stefan de Konink 2009-03-17 19:04:07 UTC]

Please extend to general serial usb layer; .29 still seems to fix issues, also on the affected system.

[Comment 2 Mike Pagano 2009-03-17 19:39:16 UTC]

Can you tell me if vanilla sources 2.6.28.7 has the problem?

[Comment 3 Stefan de Konink 2009-03-17 20:11:23 UTC]

(In reply to comment #2)
> Can you tell me if vanilla sources 2.6.28.7 has the problem?

I'll give it a shot.

[Comment 4 Greg Kroah-Hartman (RETIRED) 2009-03-18 01:36:18 UTC]

This should be resolved in 2.6.28, if not, please let the upstream kernel developers (i.e. me in this case), know about it.

[Comment 5 Stefan de Konink 2009-03-18 03:08:10 UTC]

(In reply to comment #4)
> This should be resolved in 2.6.28, if not, please let the upstream kernel
> developers (i.e. me in this case), know about it.

Tested 2.6.28.8 that gives a working USB thing. Strangely I have no reason to assume that the reported kernel did consistently fail. Because within that kernel I did have a working USB Serial port. But as reported out of the blue the i/o error was there. (I can say there were a lot of insmods and actually two different usb serial drivers). Tested them now too, both work.

[Comment 6 Greg Kroah-Hartman (RETIRED) 2009-03-18 03:43:17 UTC]

Ok, closing out as not a bug, thanks for retesting.